/* ================================================================
   全局重置
   ================================================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #f8f5f0;
    --text: #1c1818;
    --text-light: #5f5a5a;
    --accent: #b84a3a;
    --border: #ddd6cb;
    --card-bg: #fffdf9;
    --text-muted: #6f685f;
    --footer-grad-top: #f7f4ef;
    --footer-grad-bottom: #f2efe8;
    --serif: 'Source Serif 4', 'Georgia', serif;
    --sans: 'Inter', -apple-system, sans-serif;
    --font-base: 1.15rem;
    /* 增加视口高度变量，解决移动端vh问题 */
    --vh: 1vh;
}

html {
    scroll-behavior: smooth;
    font-size: 18px;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    font-weight: 400;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    font-size: var(--font-base);
    overflow-x: hidden;
}

::selection {
    background: var(--accent);
    color: #fff;
}

/* ================================================================
   鼠标跟随光晕 · 使用will-change优化
   ================================================================ */
.cursor-glow {
    position: fixed;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(184, 74, 58, 0.025), transparent 70%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    will-change: transform;
}

/* ================================================================
   导航
   ================================================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 20px 52px;
    background: rgba(248, 245, 240, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.02);
    display: flex;
    justify-content: space-between;
    align-items: center;
    pointer-events: none;
}
.nav>* {
    pointer-events: auto;
}

.nav .logo {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 1.3rem;
    letter-spacing: 0.5px;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.nav .logo .logo-icon {
    height: 44px;
    width: auto;
    object-fit: contain;
    transition: transform 0.3s ease;
}
.nav .logo::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 60%;
    height: 100%;
    background: linear-gradient(120deg, transparent 0%, rgba(184, 74, 58, 0.22) 50%, transparent 100%);
    transform: translateX(-180%) skewX(-20deg);
    pointer-events: none;
}
.nav .logo:hover::after {
    animation: logoShimmer 0.8s ease forwards;
}
@keyframes logoShimmer {
    from { transform: translateX(-180%) skewX(-20deg); }
    to { transform: translateX(320%) skewX(-20deg); }
}
.nav .logo span {
    color: var(--accent);
    font-weight: 600;
}
.nav .logo .tagline {
    font-family: var(--sans);
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--text-light);
    letter-spacing: 1px;
    text-transform: uppercase;
    opacity: 0.4;
    padding-left: 10px;
    border-left: 1px solid var(--border);
}

.nav .links {
    display: flex;
    gap: 30px;
    font-size: 0.85rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-light);
    align-items: center;
}
.nav .links a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
    position: relative;
    cursor: pointer;
}
.nav .links a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -3px;
    width: 0;
    height: 1.5px;
    background: var(--accent);
    transition: width 0.3s;
}
.nav .links a:hover {
    color: var(--text);
}
.nav .links a:hover::after {
    width: 100%;
}

/* 联系我们 CTA：与发送按钮一致的左→右扫光。
   注意 CTA 位于 .links 内，需用 .nav .links a.nav-cta 提升优先级，
   否则会被导航链接的颜色/下划线 ::after 覆盖，导致字色错乱、扫光失效。 */
.nav .links a.nav-cta {
    padding: 8px 24px;
    border-radius: 40px;
    background: var(--text);
    color: var(--bg);
    font-weight: 500;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    text-transform: none;
    transition: color 0.3s;
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
}
.nav .links a.nav-cta::after {
    display: none;
}
.nav .links a.nav-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
    z-index: 0;
}
.nav .links a.nav-cta:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}
.nav .links a.nav-cta:hover {
    color: #fff;
}
.nav .links a.nav-cta span {
    position: relative;
    z-index: 1;
}

.nav .menu-toggle {
    display: none;
    font-size: 1.3rem;
    cursor: pointer;
    color: var(--text);
    background: none;
    border: none;
}

/* ================================================================
   Hero · 使用动态视口高度
   ================================================================ */
.hero {
    position: relative;
    width: 100vw;
    height: calc(var(--vh, 1vh) * 100);
    overflow: hidden;
    z-index: 1;
}

.hero-carousel-track {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.9s cubic-bezier(0.65, 0, 0.35, 1);
    will-change: transform;
}

.hero-slide {
    min-width: 100vw;
    min-height: 100%;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    padding: 100px 52px 80px;
    gap: 60px;
}

.hero-slide .slide-left {
    position: relative;
    z-index: 2;
}

.hero-slide .slide-right {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding-left: 32px;
    border-left: 2px solid var(--border);
}

.hero-slide-0 {
    background: #f8f5f0;
}
.hero-slide-0 .bg-deco {
    position: absolute;
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--serif);
    font-size: 22vw;
    font-weight: 600;
    color: rgba(184, 74, 58, 0.012);
    letter-spacing: -10px;
    pointer-events: none;
    user-select: none;
    white-space: nowrap;
    z-index: 0;
}

.hero-slide-1 {
    background: #f5f0ea;
}
.hero-slide-1 .bg-deco {
    position: absolute;
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--serif);
    font-size: 22vw;
    font-weight: 600;
    color: rgba(184, 74, 58, 0.012);
    letter-spacing: 0.05em;
    user-select: none;
    white-space: nowrap;
    z-index: 0;
}

.hero-slide-2 {
    background: #f0ebe4;
}
.hero-slide-2 .bg-deco {
    position: absolute;
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--serif);
    font-size: 22vw;
    font-weight: 600;
    color: rgba(184, 74, 58, 0.012);
    letter-spacing: 0.05em;
    user-select: none;
    white-space: nowrap;
    z-index: 0;
}

/* ---- 左侧内容 ---- */
.hero-slide .eyebrow {
    font-size: 0.75rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: var(--text-light);
    margin-bottom: 16px;
    opacity: 0;
    transform: translateY(20px);
    animation: slideInUp 0.8s 0.1s forwards;
}

.hero-slide h1,
.hero-slide .hero-title {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 5rem;
    line-height: 1.05;
    color: var(--text);
    letter-spacing: -2px;
    margin-bottom: 12px;
    opacity: 0;
    transform: translateY(30px);
    animation: slideInUp 0.9s 0.2s forwards;
}
.hero-slide h1 .accent {
    color: var(--accent);
    font-weight: 600;
}

.hero-slide .bio-wrap {
    font-size: 1.2rem;
    font-weight: 300;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
    min-height: 4.2rem;
    opacity: 0;
    transform: translateY(20px);
    animation: slideInUp 0.8s 0.4s forwards;
}
.hero-slide .bio-wrap .typed-text {
    display: inline;
}
.hero-slide .bio-wrap .typed-cursor {
    display: inline-block;
    width: 2px;
    height: 1.1em;
    background: var(--accent);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: cursorBlink 0.9s step-end infinite;
}
@keyframes cursorBlink {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}

.hero-slide .actions {
    opacity: 0;
    transform: translateY(20px);
    animation: slideInUp 0.8s 0.6s forwards;
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.hero-slide .actions .primary {
    padding: 14px 40px;
    border-radius: 60px;
    background: var(--text);
    color: var(--bg);
    font-weight: 500;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
}
.hero-slide .actions .primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
    z-index: -1;
}
.hero-slide .actions .primary:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}
.hero-slide .actions .primary:hover {
    color: #fff;
}

.hero-slide .actions .secondary {
    padding: 14px 40px;
    border-radius: 60px;
    background: transparent;
    color: var(--text-light);
    font-weight: 400;
    font-size: 0.95rem;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}
.hero-slide .actions .secondary:hover {
    border-color: var(--text);
    color: var(--text);
    transform: translateY(-2px);
}

@keyframes slideInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---- 右侧数据 ---- */
.hero-slide .data-item {
    margin-bottom: 28px;
    opacity: 0;
    transform: translateY(20px);
    animation: slideInUp 0.8s forwards;
    position: relative;
    padding-left: 4px;
}
.hero-slide .data-item .number {
    font-family: var(--serif);
    font-size: 3.4rem;
    font-weight: 400;
    color: var(--text);
    line-height: 1.1;
    letter-spacing: -1px;
}
.hero-slide .data-item .number .suffix {
    color: var(--accent);
    font-weight: 600;
}
.hero-slide .data-item .number .sign {
    color: var(--accent);
    font-weight: 600;
    font-size: 2.2rem;
    margin-right: 2px;
}
.hero-slide .data-item .label {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-top: 2px;
}

.hero-slide .data-divider {
    width: 100%;
    border: none;
    border-top: 1px solid var(--border);
    margin: 6px 0 20px;
    opacity: 0;
    animation: slideInUp 0.8s 0.9s forwards;
}

.hero-slide .data-footer {
    font-family: var(--serif);
    font-style: italic;
    font-size: 1.1rem;
    color: var(--text-light);
    opacity: 0;
    animation: slideInUp 0.8s 1s forwards;
}

.hero-slide-0 .data-item:nth-child(1) {
    animation-delay: 0.3s;
}
.hero-slide-0 .data-item:nth-child(2) {
    animation-delay: 0.5s;
}
.hero-slide-0 .data-item:nth-child(3) {
    animation-delay: 0.7s;
}
.hero-slide-1 .data-item:nth-child(1) {
    animation-delay: 0.3s;
}
.hero-slide-1 .data-item:nth-child(2) {
    animation-delay: 0.5s;
}
.hero-slide-1 .data-item:nth-child(3) {
    animation-delay: 0.7s;
}
.hero-slide-2 .data-item:nth-child(1) {
    animation-delay: 0.3s;
}
.hero-slide-2 .data-item:nth-child(2) {
    animation-delay: 0.5s;
}
.hero-slide-2 .data-item:nth-child(3) {
    animation-delay: 0.7s;
}

/* ================================================================
   轮播控制
   ================================================================ */
.carousel-controls {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(248, 245, 240, 0.5);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 8px 20px;
    border-radius: 60px;
    border: 1px solid rgba(0, 0, 0, 0.02);
}
.carousel-controls button {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.25s;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
}
.carousel-controls button:hover {
    border-color: var(--text);
    color: var(--text);
    background: rgba(0, 0, 0, 0.01);
}

.carousel-controls .dots {
    display: flex;
    gap: 6px;
    align-items: center;
}
.carousel-controls .dots .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    border: none;
    background: var(--border);
    cursor: pointer;
    transition: all 0.4s ease;
    padding: 0;
    position: relative;
}
.carousel-controls .dots .dot.active {
    background: var(--accent);
    width: 28px;
    border-radius: 4px;
}
.carousel-controls .dots .dot:hover {
    background: var(--text-light);
}

/* ================================================================
   下方内容
   ================================================================ */
section {
    padding: 110px 52px;
    max-width: 1440px;
    margin: 0 auto;
    position: relative;
    background: var(--bg);
}

.section-header {
    margin-bottom: 60px;
    max-width: 65%;
}
.section-header .label {
    font-size: 0.75rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--text-light);
    margin-bottom: 6px;
}
.section-header h2 {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 3.4rem;
    color: var(--text);
    letter-spacing: -1.5px;
    line-height: 1.1;
}
.section-header h2 .accent {
    color: var(--accent);
    font-weight: 600;
}
.section-header .desc {
    font-size: 1.1rem;
    color: var(--text-light);
    font-weight: 300;
    margin-top: 6px;
}

/* 关于 */
.about-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.4fr;
    gap: 56px;
    align-items: stretch;
}
.about-brand {
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    border-radius: 22px;
    padding: 44px 38px;
    background: var(--card-bg);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: relative;
    overflow: hidden;
}
.about-brand .brand-mark {
    font-family: var(--serif);
    font-size: 3.4rem;
    font-weight: 600;
    color: var(--text);
    letter-spacing: 0.06em;
    line-height: 1;
}
.about-brand .brand-en {
    font-size: 0.78rem;
    letter-spacing: 0.32em;
    color: var(--accent);
    margin-top: 14px;
    text-transform: uppercase;
}
.about-brand .brand-role {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 12px;
    letter-spacing: 0.04em;
}
.about-brand .brand-line {
    width: 44px;
    height: 2px;
    background: var(--accent);
    margin: 28px 0;
    border-radius: 2px;
}
.about-brand .brand-stats {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 26px 24px;
    width: 100%;
}
.about-brand .brand-stats li {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.about-brand .brand-stats b {
    font-family: var(--serif);
    font-size: 2.1rem;
    font-weight: 600;
    color: var(--accent);
    line-height: 1;
}
.about-brand .brand-stats span {
    font-size: 0.82rem;
    color: var(--text-muted);
    letter-spacing: 0.06em;
}
.about-narrative {
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.about-narrative .lead {
    font-family: var(--serif);
    font-size: 1.45rem;
    font-weight: 400;
    line-height: 1.85;
    color: var(--text);
    margin-bottom: 26px;
}
.about-narrative p {
    font-size: 1.1rem;
    font-weight: 300;
    color: var(--text-light);
    line-height: 2;
    margin-bottom: 20px;
}
.about-narrative .highlight {
    color: var(--accent);
    font-weight: 500;
    background: linear-gradient(transparent 62%, rgba(184, 74, 58, 0.16) 62%);
    padding: 0 3px;
    border-radius: 3px;
    white-space: nowrap;
}
.about-narrative .signature {
    font-family: var(--serif);
    font-size: 1.05rem;
    color: var(--accent);
    margin-top: 8px;
    align-self: flex-end;
    letter-spacing: 0.04em;
}

/* 服务 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.services-grid .card {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 34px 32px;
    transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    position: relative;
    overflow: hidden;
    will-change: transform;
}
.services-grid .card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(184, 74, 58, 0.025), transparent 60%);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
}
.services-grid .card:hover::before {
    opacity: 1;
}
.services-grid .card:hover {
    transform: translateY(-6px);
    border-color: var(--text);
    background: rgba(0, 0, 0, 0.005);
}
.services-grid .card .icon-wrap {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: rgba(184, 74, 58, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    transition: all 0.3s;
}
.services-grid .card:hover .icon-wrap {
    background: rgba(184, 74, 58, 0.12);
    transform: scale(1.05);
}
.services-grid .card .icon {
    font-size: 1.4rem;
    color: var(--accent);
    opacity: 0.6;
}
.services-grid .card .title {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 1.3rem;
    color: var(--text);
    margin-bottom: 4px;
}
.services-grid .card .desc {
    font-size: 0.95rem;
    font-weight: 300;
    color: var(--text-light);
    line-height: 1.8;
}
.services-grid .card .learn-more {
    display: inline-block;
    margin-top: 14px;
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--accent);
    text-decoration: none;
    opacity: 0;
    transform: translateY(6px);
    transition: all 0.3s;
}
.services-grid .card:hover .learn-more {
    opacity: 1;
    transform: translateY(0);
}
.services-grid .card .learn-more i {
    font-size: 0.6rem;
    margin-left: 4px;
    transition: transform 0.3s;
}
.services-grid .card .learn-more:hover i {
    transform: translateX(4px);
}

/* 案例 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.cases-grid .card {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 34px 32px;
    transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    position: relative;
}
.cases-grid .card:hover {
    transform: translateY(-4px);
    border-color: var(--text);
    background: rgba(0, 0, 0, 0.005);
}
.cases-grid .card .number {
    font-family: var(--serif);
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--border);
    margin-bottom: 8px;
    letter-spacing: 1px;
}
.cases-grid .card .tag {
    font-size: 0.65rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent);
    margin-bottom: 6px;
    opacity: 0.5;
}
.cases-grid .card .title {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 1.3rem;
    color: var(--text);
    margin-bottom: 4px;
}
.cases-grid .card .desc {
    font-size: 0.95rem;
    font-weight: 300;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 10px;
}
.cases-grid .card .view-link {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--accent);
    text-decoration: none;
    opacity: 0;
    transform: translateY(6px);
    transition: all 0.3s;
}
.cases-grid .card:hover .view-link {
    opacity: 1;
    transform: translateY(0);
}
.cases-grid .card .view-link i {
    font-size: 0.6rem;
    margin-left: 4px;
    transition: transform 0.3s;
}
.cases-grid .card .view-link:hover i {
    transform: translateX(4px);
}

/* 评价 */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.testimonials-grid .card {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 34px 32px;
    transition: all 0.3s ease;
}
.testimonials-grid .card:hover {
    border-color: var(--text);
    background: rgba(0, 0, 0, 0.005);
}
.testimonials-grid .card .quote {
    font-family: var(--serif);
    font-style: italic;
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}
.testimonials-grid .card .quote::before {
    content: '"';
    color: var(--accent);
    font-size: 1.8rem;
    opacity: 0.2;
    margin-right: 4px;
}
.testimonials-grid .card .author {
    display: flex;
    align-items: center;
    gap: 14px;
}
.testimonials-grid .card .author .avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(184, 74, 58, 0.06);
    border: 1px solid rgba(184, 74, 58, 0.04);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--serif);
    font-size: 1rem;
    font-weight: 400;
    color: var(--accent);
}
.testimonials-grid .card .author .info .name {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text);
}
.testimonials-grid .card .author .info .role {
    font-size: 0.75rem;
    color: var(--text-light);
}

/* 流程 */
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.process-grid .step {
    text-align: center;
    padding: 28px 20px;
    border: 1px solid var(--border);
    border-radius: 18px;
    transition: all 0.3s ease;
}
.process-grid .step:hover {
    border-color: var(--text);
    transform: translateY(-4px);
}
.process-grid .step .num {
    font-family: var(--serif);
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--accent);
    opacity: 0.2;
    margin-bottom: 8px;
}
.process-grid .step .label {
    font-weight: 500;
    font-size: 1rem;
    color: var(--text);
}
.process-grid .step .desc {
    font-size: 0.8rem;
    font-weight: 300;
    color: var(--text-light);
    margin-top: 4px;
}

/* 联系 — 温暖浅色双栏面板 */
.contact-panel {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: #fff;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
}

/* 左侧：联系信息 */
.contact-panel-side {
    background: var(--card-bg);
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    border-right: 1px solid var(--border);
}
.cps-section-head {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--serif);
    font-size: 0.78rem;
    color: var(--text-muted);
    letter-spacing: 2px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 4px;
}
.cps-section-head i {
    color: var(--accent);
    font-size: 0.7rem;
    opacity: 0.6;
}
.cps-channels {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.cps-channel {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 10px;
    text-decoration: none;
    color: var(--text);
    transition: all 0.22s;
    border: 1px solid transparent;
    background: none;
    width: 100%;
    text-align: left;
    font: inherit;
    cursor: pointer;
}
.cps-channel:hover {
    background: rgba(184, 74, 58, 0.05);
    border-color: var(--border);
}
.cps-ch-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(184, 74, 58, 0.08);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 0.92rem;
    flex-shrink: 0;
    transition: all 0.22s;
}
.cps-channel:hover .cps-ch-icon {
    background: var(--accent);
    color: #fff;
}
.cps-ch-info {
    display: flex;
    flex-direction: column;
    gap: 0px;
    flex: 1;
    font-size: 0.86rem;
    font-weight: 500;
    line-height: 1.35;
}
.cps-ch-info small {
    font-size: 0.62rem;
    color: var(--text-muted);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    font-weight: 400;
}
.cps-meta {
    display: flex;
    gap: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}
.cps-meta span {
    font-size: 0.76rem;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.cps-meta i {
    color: var(--accent);
    opacity: 0.5;
    font-size: 0.72rem;
}
.cps-trust {
    display: flex;
    gap: 6px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}
.cps-trust span {
    font-size: 0.7rem;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.cps-trust span:not(:last-child)::after {
    content: '·';
    margin-left: 6px;
    color: var(--border);
}
.cps-trust i {
    color: var(--accent);
    font-size: 0.58rem;
    opacity: 0.5;
}

/* 右侧：表单 */
.contact-panel-form {
    background: var(--bg);
    padding: 32px 28px;
}
.contact-left .socials {
    display: flex;
    gap: 14px;
    margin-top: 28px;
    flex-wrap: wrap;
}
.contact-left .socials a {
    padding: 8px 24px;
    border: 1px solid var(--border);
    border-radius: 40px;
    font-size: 0.85rem;
    font-weight: 300;
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.2s;
}
.contact-left .socials a:hover {
    border-color: var(--text);
    color: var(--text);
    transform: translateY(-2px);
}

.contact-left a[href^="mailto"] {
    color: var(--text-light);
    text-decoration: none;
}
.contact-left a[href^="mailto"]:hover {
    color: var(--accent);
}

/* 联系渠道图标 */
.contact-channels {
    display: flex;
    gap: 14px;
    margin-top: 28px;
    flex-wrap: wrap;
}
.contact-left .channel {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--card-bg);
    color: var(--text-light);
    font-size: 1.15rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.25s;
    font-family: inherit;
}
.contact-left .channel:hover,
.contact-left .channel:focus-visible {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-3px);
    outline: none;
}
.contact-left .channel .qr-pop {
    position: absolute;
    bottom: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 10px;
    box-shadow: 0 14px 34px rgba(0,0,0,0.18);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
    z-index: 30;
    text-align: center;
    width: max-content;
}
.contact-left .channel .qr-pop::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 7px solid transparent;
    border-top-color: #fff;
}
.contact-left .channel:hover .qr-pop,
.contact-left .channel:focus-visible .qr-pop,
.contact-left .channel.active .qr-pop {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.contact-left .channel .qr-pop img {
    display: block;
    width: 120px;
    height: 120px;
}
.contact-left .channel .qr-pop span {
    display: block;
    margin-top: 6px;
    font-size: 0.8rem;
    font-weight: 400;
    color: #555;
}
[data-theme="dark"] .contact-left .channel .qr-pop {
    background: #fff;
    border-color: #e6e1d9;
}
[data-theme="dark"] .contact-left .channel .qr-pop span {
    color: #555;
}

/* 暗夜模式：在线联系入口 */
.online-contact {
    display: none;
    margin-top: 18px;
    align-items: center;
    gap: 8px;
    width: fit-content;
    padding: 8px 18px;
    border: 1px solid var(--accent);
    border-radius: 40px;
    background: transparent;
    color: var(--accent);
    font-size: 0.85rem;
    font-family: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
}
.online-contact i { font-size: 1rem; }
.online-contact:hover {
    background: var(--accent);
    color: #fff;
}
[data-theme="dark"] .online-contact {
    display: inline-flex;
}

/* 复制提示 toast */
.toast {
    position: fixed;
    left: 50%;
    bottom: 40px;
    transform: translateX(-50%) translateY(20px);
    background: var(--text);
    color: #fff;
    padding: 11px 20px;
    border-radius: 40px;
    font-size: 0.85rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.22);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s, transform 0.25s, visibility 0.25s;
    z-index: 9999;
    pointer-events: none;
    max-width: 88vw;
    text-align: center;
}
.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
[data-theme="dark"] .toast {
    background: #2a2522;
    color: #fff;
    border: 1px solid var(--border);
}

/* 联系磁贴 hover 色变 */
.contact-tile:hover .contact-tile-value {
    color: var(--accent);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 13px 18px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(4px);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: inherit;
    font-size: 0.92rem;
    transition: border 0.2s, box-shadow 0.2s;
    margin-bottom: 12px;
    outline: none;
}
.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--text);
    box-shadow: 0 0 0 3px rgba(184, 74, 58, 0.02);
}
.contact-form textarea {
    min-height: 100px;
    resize: vertical;
}
.contact-form button {
    padding: 12px 34px;
    border-radius: 60px;
    border: none;
    background: var(--text);
    color: var(--bg);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    margin-top: 0;
    width: auto;
}
.form-actions {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
.form-actions .form-feedback {
    margin-top: 10px;
    text-align: left;
}
.contact-form button::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
    z-index: 0;
}
.contact-form button:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}
.contact-form button:hover {
    color: #fff;
}
.contact-form button span {
    position: relative;
    z-index: 1;
}

/* 右下角浮动按钮组 —— 统一视觉（玻璃拟态） */
.back-to-top,
.theme-toggle,
.contact-fab {
    position: fixed;
    right: 30px;
    z-index: 50;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: rgba(248, 245, 240, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s, color 0.25s, background 0.25s, opacity 0.3s;
}
.back-to-top:hover,
.theme-toggle:hover,
.contact-fab:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(248, 245, 240, 0.92);
    box-shadow: 0 8px 18px rgba(184, 74, 58, 0.18);
}

/* 返回顶部 */
.back-to-top {
    bottom: 100px;
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
}
.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* 暗色模式切换 */
.theme-toggle {
    bottom: 162px;
}

/* 联系我们（细线聊天气泡 + 高级脉冲光环） */
.contact-fab {
    bottom: 224px;
    text-decoration: none;
    box-shadow: 0 6px 16px rgba(184, 74, 58, 0.2);
}
.contact-fab::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 1.5px solid var(--accent);
    opacity: 0;
    animation: fabPulse 2.8s cubic-bezier(0.22, 0.61, 0.36, 1) infinite;
    pointer-events: none;
}
@keyframes fabPulse {
    0%   { transform: scale(1);    opacity: 0.6; }
    70%  { transform: scale(1.7);  opacity: 0; }
    100% { transform: scale(1.7);  opacity: 0; }
}
.fab-chat {
    position: relative;
    z-index: 1;
    width: 50%;
    height: 50%;
    overflow: visible;
}
.chat-bubble {
    fill: none;
    stroke: var(--accent);
    stroke-width: 1.7;
    stroke-linejoin: round;
    stroke-linecap: round;
}
.chat-dot {
    fill: var(--accent);
    transform-box: fill-box;
    transform-origin: center;
    animation: chatDot 1.5s ease-in-out infinite;
}
.chat-dot.d2 { animation-delay: 0.22s; }
.chat-dot.d3 { animation-delay: 0.44s; }
@keyframes chatDot {
    0%, 60%, 100% { opacity: 0.25; transform: translateY(0) scale(0.85); }
    30% { opacity: 1; transform: translateY(-2.8px) scale(1.15); }
}
@media (prefers-reduced-motion: reduce) {
    .chat-dot { animation: none !important; opacity: 0.8; }
    .contact-fab::before { animation: none !important; opacity: 0; }
}

/* 浮动按钮组响应式 */
@media (max-width: 1024px) {
    .back-to-top,
    .theme-toggle,
    .contact-fab {
        right: 22px;
        width: 42px;
        height: 42px;
        font-size: 0.9rem;
    }
    .back-to-top { bottom: 80px; }
    .theme-toggle { bottom: 138px; }
    .contact-fab { bottom: 196px; }
}
@media (max-width: 600px) {
    .back-to-top,
    .theme-toggle,
    .contact-fab {
        right: 16px;
        width: 40px;
        height: 40px;
        font-size: 0.8rem;
    }
    .back-to-top { bottom: 70px; }
    .theme-toggle { bottom: 124px; }
    .contact-fab { bottom: 178px; }
}

/* 页脚 */
footer {
    padding: 80px 52px 48px;
    max-width: 1440px;
    margin: 0 auto;
    color: var(--text-light);
    border-top: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(51, 46, 41, 0.02) 0%, rgba(51, 46, 41, 0.05) 100%);
    border-radius: 24px 24px 0 0;
}
footer .footer-links {
    display: flex;
    gap: 24px;
    justify-content: center;
    font-size: 0.7rem;
    letter-spacing: 1px;
}
footer .footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s;
}
footer .footer-links a:hover {
    color: var(--text);
}

/* 移动端始终显示 learn-more / view-link */
@media (hover: none) {
    .services-grid .card .learn-more,
    .cases-grid .card .view-link {
        opacity: 1 !important;
        transform: translateY(0) !important;
    }
}

/* ================================================================
   响应式
   ================================================================ */
@media (max-width: 1024px) {
    :root {
        --font-base: 1rem;
    }
    html {
        font-size: 16px;
    }

    .hero-slide {
        grid-template-columns: 1fr;
        padding: 100px 36px 70px;
        text-align: center;
        gap: 32px;
    }
    .hero-slide .slide-right {
        border-left: none;
        padding-left: 0;
        align-items: center;
        border-top: 1px solid var(--border);
        padding-top: 28px;
    }
    .hero-slide .data-item {
        text-align: center;
    }
    .hero-slide .data-item .number {
        font-size: 2.8rem;
    }
    .hero-slide .data-item .number .sign {
        font-size: 1.8rem;
    }
    .hero-slide .data-divider {
        max-width: 200px;
        margin-left: auto;
        margin-right: auto;
    }
    .hero-slide .data-footer {
        text-align: center;
    }
    .hero-slide h1 {
        font-size: 3.8rem;
    }
    .hero-slide .bio-wrap {
        font-size: 1.05rem;
    }
    .hero-slide .actions {
        justify-content: center;
    }
    .hero-slide-0 .bg-deco {
        font-size: 30vw;
        right: -30px;
    }

    .carousel-controls {
        bottom: 24px;
        padding: 6px 16px;
        gap: 14px;
    }
    .carousel-controls button {
        width: 30px;
        height: 30px;
        font-size: 0.7rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .about-brand .brand-stats {
        gap: 22px 24px;
    }
    .section-header {
        max-width: 100%;
        text-align: center;
    }
    .section-header .label {
        text-align: center;
    }
    .section-more {
        width: 100%;
        justify-content: center;
    }
    .services-grid {
        grid-template-columns: 1fr 1fr;
    }
    .cases-grid {
        grid-template-columns: 1fr 1fr;
    }
    .testimonials-grid {
        grid-template-columns: 1fr 1fr;
    }
    .process-grid {
        grid-template-columns: 1fr 1fr;
    }
    .contact-panel {
        grid-template-columns: 1fr;
    }
    .contact-panel-side {
        padding: 32px 28px;
    }
    .contact-panel-form {
        padding: 32px 28px;
    }

    .nav .links {
        display: none;
    }
    .nav .menu-toggle {
        display: block;
    }
    .nav .links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 66px;
        left: 0;
        width: 100%;
        background: var(--bg);
        padding: 24px 36px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
    }
    .nav .links.open .nav-cta {
        align-self: flex-start;
    }

    section {
        padding: 70px 28px;
    }
    .cursor-glow {
        display: none;
    }
    .back-to-top {
        bottom: 80px;
        right: 22px;
        width: 42px;
        height: 42px;
        font-size: 0.9rem;
    }
}

@media (max-width: 600px) {
    html {
        font-size: 14px;
    }
    .hero-slide {
        padding: 80px 20px 60px;
    }
    .hero-slide h1 {
        font-size: 2.8rem;
    }
    .hero-slide .bio-wrap {
        font-size: 0.95rem;
        min-height: 3.2rem;
    }
    .hero-slide .actions .primary,
    .hero-slide .actions .secondary {
        padding: 12px 28px;
        font-size: 0.85rem;
    }
    .hero-slide .data-item .number {
        font-size: 2.2rem;
    }
    .hero-slide .data-item .number .sign {
        font-size: 1.4rem;
    }
    .hero-slide .data-item .label {
        font-size: 0.65rem;
    }

    .carousel-controls {
        bottom: 16px;
        padding: 4px 12px;
        gap: 10px;
    }
    .carousel-controls button {
        width: 26px;
        height: 26px;
        font-size: 0.6rem;
    }
    .carousel-controls .dots .dot {
        width: 5px;
        height: 5px;
    }
    .carousel-controls .dots .dot.active {
        width: 18px;
    }

    .nav {
        padding: 16px 20px;
    }
    .nav .logo {
        font-size: 1.1rem;
    }
    .nav .logo .tagline {
        display: none;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }
    .cases-grid {
        grid-template-columns: 1fr;
    }
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    .process-grid {
        grid-template-columns: 1fr;
    }
    .about-brand .brand-stats {
        grid-template-columns: 1fr 1fr;
    }
    .contact-form button {
        width: 100%;
    }
    section {
        padding: 50px 18px;
    }
    .section-header h2 {
        font-size: 2.4rem;
    }
    .hero-slide-0 .bg-deco {
        font-size: 40vw;
        right: -15px;
    }
    .back-to-top {
        bottom: 70px;
        right: 16px;
        width: 40px;
        height: 40px;
        font-size: 0.8rem;
    }
    .contact-panel-side {
        padding: 28px 22px;
        gap: 20px;
    }
    .contact-panel-form {
        padding: 28px 22px;
    }
    .cps-title {
        font-size: 1.6rem;
    }
    footer .footer-links {
        flex-wrap: wrap;
        gap: 12px;
    }
}

[data-aos] {
    pointer-events: none;
}
[data-aos].aos-animate {
    pointer-events: auto;
}

/* ================================================================
   团队、品牌墙、价格、筛选、FAQ、博客、表单、Modal、页脚
   ================================================================ */

/* ---- 团队成员 ---- */
.team-section {
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}
.team-title {
    font-family: var(--serif);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text);
    margin-bottom: 32px;
    text-align: center;
}
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}
.team-grid .member {
    text-align: center;
    padding: 28px 20px;
    border: 1px solid var(--border);
    border-radius: 18px;
    transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.team-grid .member:hover {
    border-color: var(--text);
    transform: translateY(-4px);
}
.team-grid .member .avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(184, 74, 58, 0.06);
    border: 1px solid rgba(184, 74, 58, 0.04);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--serif);
    font-size: 1.5rem;
    color: var(--accent);
    margin: 0 auto 14px;
}
.team-grid .member .name {
    font-weight: 500;
    font-size: 1rem;
    color: var(--text);
    margin-bottom: 2px;
}
.team-grid .member .role {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 8px;
}
.team-grid .member .bio {
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: 300;
    line-height: 1.6;
}

/* ---- 品牌墙 ---- */
.brands-section {
    padding-top: 50px;
    padding-bottom: 50px;
}
.brand-wall {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    max-width: 1000px;
    margin: 0 auto;
}
.brand-wall .brand-item {
    padding: 14px 32px;
    border: 1px solid var(--border);
    border-radius: 12px;
    font-family: var(--serif);
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--text-light);
    opacity: 0.5;
    transition: all 0.3s ease;
    cursor: default;
}
.brand-wall .brand-item:hover {
    opacity: 1;
    color: var(--text);
    border-color: var(--text);
    transform: translateY(-2px);
}

/* ---- 价格标签 ---- */
.services-grid .card .price-tag {
    display: inline-block;
    margin-top: 10px;
    padding: 4px 14px;
    border-radius: 20px;
    background: rgba(184, 74, 58, 0.06);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent);
}

/* ---- 案例筛选 ---- */
.case-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
    justify-content: center;
}
.case-filters .filter-btn {
    padding: 8px 24px;
    border-radius: 40px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-light);
    font-size: 0.8rem;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.25s;
    font-family: inherit;
}
.case-filters .filter-btn:hover {
    border-color: var(--text);
    color: var(--text);
}
.case-filters .filter-btn.active {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
}

/* 案例卡片新增 metric */
.cases-grid .card .metric {
    display: inline-block;
    margin-top: 8px;
    padding: 3px 12px;
    border-radius: 20px;
    background: rgba(184, 74, 58, 0.06);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent);
}
.cases-grid .card .period {
    font-size: 0.7rem;
    color: var(--text-light);
    opacity: 0.5;
    margin-top: 4px;
}
.cases-grid .card .view-detail-btn {
    display: inline-block;
    margin-top: 12px;
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--accent);
    text-decoration: none;
    cursor: pointer;
    background: none;
    border: none;
    font-family: inherit;
    opacity: 0;
    transform: translateY(6px);
    transition: all 0.3s;
}
.cases-grid .card:hover .view-detail-btn {
    opacity: 1;
    transform: translateY(0);
}

/* ---- 评价新增 rating ---- */
.testimonials-grid .card .rating {
    margin-bottom: 10px;
    color: var(--accent);
    font-size: 0.8rem;
    opacity: 0.6;
}
.testimonials-grid .card .project-tag {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent);
    opacity: 0.5;
    margin-bottom: 8px;
}
.testimonials-grid .card .date-tag {
    font-size: 0.7rem;
    color: var(--text-light);
    opacity: 0.4;
    margin-top: 8px;
}

/* ---- FAQ ---- */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    border: 1px solid var(--border);
    border-radius: 14px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color 0.3s;
}
.faq-item:hover {
    border-color: var(--text);
}
.faq-item .faq-q {
    padding: 20px 28px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}
.faq-item .faq-q:hover {
    background: rgba(0, 0, 0, 0.01);
}
.faq-item .faq-q .faq-icon {
    font-size: 0.8rem;
    color: var(--accent);
    transition: transform 0.3s;
}
.faq-item.open .faq-q .faq-icon {
    transform: rotate(180deg);
}
.faq-item .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    padding: 0 28px;
    font-size: 0.95rem;
    font-weight: 300;
    color: var(--text-light);
    line-height: 1.8;
}
.faq-item.open .faq-a {
    max-height: 300px;
    padding: 0 28px 20px;
}

/* ---- 博客 / 洞察 ---- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.blog-grid .post {
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 30px 28px;
    transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    color: inherit;
    text-decoration: none;
}
.blog-grid .post:hover {
    transform: translateY(-4px);
    border-color: var(--text);
}
.blog-grid .post .post-category {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent);
    opacity: 0.5;
    margin-bottom: 10px;
}
.blog-grid .post .post-title {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 1.25rem;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.4;
}
.blog-grid .post .post-excerpt {
    font-size: 0.9rem;
    font-weight: 300;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 14px;
}
.blog-grid .post .post-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-light);
    opacity: 0.75;
}

/* ---- 表单新字段 ---- */
.contact-form .form-row {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}
.contact-form .form-row input,
.contact-form .form-row select {
    flex: 1;
    margin-bottom: 0;
}
.contact-form select {
    width: 100%;
    padding: 13px 18px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(4px);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: inherit;
    font-size: 0.92rem;
    transition: border 0.2s, box-shadow 0.2s;
    outline: none;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235f5a5a' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 18px center;
    padding-right: 44px;
}
.contact-form select:focus {
    border-color: var(--text);
    box-shadow: 0 0 0 3px rgba(184, 74, 58, 0.02);
}
.contact-form select:invalid {
    color: var(--text-light);
}
.contact-form select option {
    color: var(--text);
}
.contact-form select option:disabled {
    opacity: 0.4;
}
.form-feedback {
    margin-top: 12px;
    font-size: 0.9rem;
    min-height: 1.2rem;
    transition: opacity 0.3s;
}
.form-feedback.success {
    color: #2d8a4e;
}
.form-feedback.error {
    color: var(--accent);
}

/* ---- 案例详情 Modal ---- */
.case-modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 40px;
}
.case-modal.open {
    display: flex;
}
.case-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
}
.case-modal-content {
    position: relative;
    z-index: 1;
    background: var(--bg);
    border-radius: 24px;
    max-width: 640px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    padding: 48px 44px;
    border: 1px solid var(--border);
}
.case-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-light);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
}
.case-modal-close:hover {
    border-color: var(--text);
    color: var(--text);
}
.case-modal .modal-tag {
    font-size: 0.65rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent);
    opacity: 0.5;
    margin-bottom: 8px;
}
.case-modal .modal-title {
    font-family: var(--serif);
    font-size: 2rem;
    font-weight: 400;
    color: var(--text);
    margin-bottom: 12px;
}
.case-modal .modal-metric {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 20px;
    background: rgba(184, 74, 58, 0.06);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: 20px;
}
.case-modal .modal-desc {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 24px;
}
.case-modal .modal-detail {
    border-top: 1px solid var(--border);
    padding-top: 20px;
}
.case-modal .modal-detail .detail-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 0.9rem;
}
.case-modal .modal-detail .detail-row .key {
    color: var(--text-light);
}
.case-modal .modal-detail .detail-row .val {
    color: var(--text);
    font-weight: 500;
}
.case-modal .modal-cta {
    margin-top: 24px;
    display: inline-block;
    padding: 12px 36px;
    border-radius: 60px;
    background: var(--text);
    color: var(--bg);
    font-weight: 500;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.3s;
}
.case-modal .modal-cta:hover {
    background: var(--accent);
}

/* ---- 页脚增强 ---- */
/* F1 外层 */
.footer-v1 {
    background: linear-gradient(180deg, var(--footer-grad-top) 0%, var(--footer-grad-bottom) 100%);
    border-radius: 28px 28px 0 0;
}
.footer-inner {
    padding: 48px 52px 32px;
}

/* 诗词区 */
.footer-poem {
    padding: 0 0 28px;
    position: relative;
}
.footer-poem::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(184, 74, 58, 0.04) 0%, transparent 65%);
    pointer-events: none;
    z-index: 0;
}
.footer-poem > * {
    position: relative;
    z-index: 1;
}
.poem-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-bottom: 22px;
}
.poem-rule {
    width: 48px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0.4;
    flex-shrink: 0;
}
.poem-seal {
    font-family: var(--serif);
    font-size: 0.72rem;
    font-weight: 600;
    color: #fff;
    background: var(--accent);
    padding: 5px 10px;
    border-radius: 3px;
    letter-spacing: 3px;
    writing-mode: vertical-rl;
    line-height: 1.3;
    opacity: 0.92;
    box-shadow: 0 2px 6px rgba(184, 74, 58, 0.2);
}
.poem-source {
    font-family: var(--serif);
    font-size: 0.78rem;
    color: var(--text-muted);
    letter-spacing: 4px;
    opacity: 0.8;
}
.poem-couplets {
    display: grid;
    grid-template-columns: 1fr 1px 1fr;
    gap: 0;
    align-items: start;
    margin-bottom: 20px;
}
.poem-couplet {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 0 28px;
}
.poem-couplet p {
    font-family: var(--serif);
    font-weight: 400;
    margin: 0;
    line-height: 1.85;
    letter-spacing: 2px;
    text-align: center;
}
.poem-couplet-lead p {
    font-size: 1.05rem;
    color: var(--text-muted);
    opacity: 0.7;
}
.poem-couplet-main p {
    font-size: 1.4rem;
    color: var(--text);
}
.poem-couplet-main {
    grid-column: 3;
    grid-row: 1;
}
.poem-couplet-lead {
    grid-column: 1;
    grid-row: 1;
}
.poem-couplets::before {
    content: '';
    grid-column: 2;
    grid-row: 1;
    width: 1px;
    height: 100%;
    background: linear-gradient(180deg, transparent 5%, var(--border) 30%, var(--border) 70%, transparent 95%);
}
.poem-couplet-main em {
    font-style: normal;
    color: var(--accent);
    position: relative;
}
.poem-couplet-main em::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 2px;
    background: var(--accent);
    opacity: 0.22;
    border-radius: 2px;
}
.poem-note {
    font-family: var(--serif);
    font-size: 0.88rem;
    color: var(--text-light);
    margin: 0;
    text-align: center;
    line-height: 1.7;
    letter-spacing: 1px;
}

/* 花饰分割线 */
.footer-divider {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 0;
}
.footer-divider span {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border) 30%, var(--border) 70%, transparent);
}
.footer-divider i {
    font-size: 0.7rem;
    color: var(--accent);
    opacity: 0.4;
}

/* 信息区 */
.footer-info {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding: 28px 0;
}
.footer-brand-block {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-logo {
    font-family: var(--serif);
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--text);
}
.footer-tagline {
    font-family: var(--serif);
    font-size: 0.84rem;
    color: var(--text-light);
    line-height: 1.8;
    margin: 0;
    letter-spacing: 1px;
}
.footer-stats {
    display: flex;
    gap: 0;
    margin-top: 8px;
    align-items: flex-end;
}
.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 14px;
    position: relative;
}
.stat:first-child {
    padding-left: 0;
}
.stat + .stat::before {
    content: '';
    position: absolute;
    left: 0;
    top: 15%;
    bottom: 15%;
    width: 1px;
    background: var(--border);
}
.stat strong {
    font-family: var(--serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    transition: transform 0.25s;
    display: block;
}
.stat small {
    font-size: 0.68rem;
    color: var(--text-muted);
    margin-top: 4px;
    letter-spacing: 0.5px;
}
.stat:hover strong {
    transform: scale(1.12);
}
.footer-col {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.footer-title {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text);
    margin-bottom: 4px;
}
.footer-col a,
.footer-col span {
    font-size: 0.8rem;
    color: var(--text-light);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    transition: color 0.2s;
}
.footer-col a:hover {
    color: var(--accent);
}
.footer-col i {
    color: var(--accent);
    font-size: 0.75rem;
    width: 13px;
    text-align: center;
}

/* 底部 */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 14px;
}
.footer-copy {
    font-size: 0.74rem;
    color: var(--text-muted);
}
.footer-nav {
    display: flex;
    gap: 2px;
    flex-wrap: wrap;
}
.footer-nav a {
    font-size: 0.76rem;
    color: var(--text-light);
    text-decoration: none;
    padding: 4px 11px;
    border-radius: 5px;
    transition: all 0.2s;
}
.footer-nav a:hover {
    color: var(--accent);
    background: rgba(184, 74, 58, 0.06);
}
.footer-bottom-right {
    display: flex;
    align-items: center;
    gap: 16px;
}
.footer-social {
    display: flex;
    gap: 8px;
}
.footer-social a {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    color: var(--text-light);
    font-size: 0.78rem;
    background: transparent;
    text-decoration: none;
    transition: all 0.25s;
}
.footer-social a:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* ============ F3 宣言式极简页脚 ============ */
.footer-v3 {
    background: transparent;
    border-top: 1px solid var(--border);
    border-radius: 0;
    padding: 0;
    margin: 0 auto;
    max-width: 1440px;
    color: var(--text-light);
    text-align: center;
}
.f3-statement {
    padding: 128px 52px 96px;
}
.f3-eyebrow {
    display: block;
    font-size: 0.72rem;
    color: var(--accent);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 36px;
    font-weight: 500;
}
.f3-claim {
    font-family: var(--serif);
    font-size: 6rem;
    line-height: 1.08;
    font-weight: 400;
    color: var(--text);
    margin: 0 0 28px;
    letter-spacing: -2px;
}
.f3-claim em {
    font-style: italic;
    color: var(--accent);
}
.f3-sign {
    font-size: 0.95rem;
    color: var(--text-light);
    margin: 0;
    letter-spacing: 0.5px;
}
.f3-bar {
    padding: 36px 52px 44px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
}
.f3-contact {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    justify-content: center;
    font-size: 0.85rem;
}
.f3-contact a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s;
}
.f3-contact a:hover {
    color: var(--accent);
}
.f3-sep {
    color: var(--border);
    font-size: 0.8rem;
}
.f3-nav {
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
    justify-content: center;
}
.f3-nav a {
    font-size: 0.8rem;
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s;
    position: relative;
}
.f3-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -3px;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.25s;
}
.f3-nav a:hover {
    color: var(--accent);
}
.f3-nav a:hover::after {
    width: 100%;
}
.f3-copy {
    font-size: 0.72rem;
    color: var(--text-light);
    opacity: 0.55;
    letter-spacing: 0.5px;
}

/* F3 响应式 */
@media (max-width: 1024px) {
    .f3-statement {
        padding: 96px 36px 72px;
    }
    .f3-claim {
        font-size: 4.5rem;
    }
    .f3-bar {
        padding: 32px 36px 40px;
    }
}
@media (max-width: 600px) {
    .f3-statement {
        padding: 72px 24px 56px;
    }
    .f3-claim {
        font-size: 3rem;
        letter-spacing: -1px;
    }
    .f3-eyebrow {
        margin-bottom: 28px;
    }
    .f3-sign {
        font-size: 0.85rem;
    }
    .f3-bar {
        padding: 28px 24px 32px;
        gap: 18px;
    }
    .f3-contact {
        gap: 10px;
        font-size: 0.8rem;
    }
    .f3-nav {
        gap: 18px;
    }
}
.footer-v2 {
    background: linear-gradient(180deg, #faf5ec 0%, #f0e2cc 100%);
    border-top: 1px solid var(--border);
    border-radius: 32px 32px 0 0;
    padding: 0;
    margin: 0 auto;
    max-width: 1440px;
    overflow: hidden;
    position: relative;
    color: var(--text-light);
}
.footer-v2::before {
    content: 'QIUQUE';
    position: absolute;
    bottom: -28px;
    right: -20px;
    font-family: var(--serif);
    font-size: 13rem;
    font-weight: 400;
    color: rgba(184, 74, 58, 0.045);
    line-height: 0.8;
    pointer-events: none;
    letter-spacing: -8px;
    z-index: 0;
}
.footer-v2 > * {
    position: relative;
    z-index: 1;
}

/* 顶部巨型标语 */
.f2-hero {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 48px;
    padding: 64px 56px 56px;
    border-bottom: 1px solid rgba(184, 74, 58, 0.15);
}
.f2-eyebrow {
    display: block;
    font-size: 0.72rem;
    color: var(--accent);
    letter-spacing: 2.5px;
    text-transform: uppercase;
    margin-bottom: 18px;
    font-weight: 500;
}
.f2-mega {
    font-family: var(--serif);
    font-size: 4.5rem;
    line-height: 1.05;
    font-weight: 400;
    color: var(--text);
    margin: 0 0 18px;
    letter-spacing: -1.5px;
}
.f2-mega-accent {
    color: var(--accent);
    font-style: italic;
}
.f2-mega-accent sup {
    font-size: 1.2rem;
    vertical-align: super;
    margin-left: 4px;
}
.f2-tagline {
    font-size: 0.95rem;
    color: var(--text-light);
    margin: 0;
    max-width: 480px;
    line-height: 1.6;
}
.f2-circle-btn {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--text);
    color: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    gap: 6px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 12px 32px rgba(51, 46, 41, 0.15);
}
.f2-circle-btn span {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}
.f2-circle-btn i {
    font-size: 0.9rem;
    transition: transform 0.4s;
}
.f2-circle-btn:hover {
    background: var(--accent);
    transform: rotate(-12deg) scale(1.05);
    box-shadow: 0 16px 40px rgba(184, 74, 58, 0.3);
}
.f2-circle-btn:hover i {
    transform: translate(3px, -3px);
}

/* 信息区 */
.f2-body {
    display: grid;
    grid-template-columns: 1.3fr 2fr;
    gap: 72px;
    padding: 56px 56px 48px;
}
.f2-brand {
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.f2-logo {
    font-family: var(--serif);
    font-size: 1.6rem;
    font-weight: 400;
    color: var(--text);
}
.f2-logo span {
    color: var(--accent);
}
.f2-manifesto {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.8;
    margin: 0;
    max-width: 360px;
}
.f2-contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 8px;
    padding-top: 18px;
    border-top: 1px dashed rgba(184, 74, 58, 0.25);
}
.f2-contact a,
.f2-contact span {
    font-size: 0.8rem;
    color: var(--text-light);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: color 0.2s;
}
.f2-contact a:hover {
    color: var(--accent);
}
.f2-contact i {
    color: var(--accent);
    font-size: 0.8rem;
    width: 14px;
    text-align: center;
}
.f2-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.f2-nav-col {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.f2-nav-num {
    font-family: var(--serif);
    font-size: 2rem;
    color: rgba(184, 74, 58, 0.4);
    line-height: 1;
    margin-bottom: 8px;
    font-style: italic;
}
.f2-nav-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.8px;
    color: var(--text);
    margin-bottom: 8px;
}
.f2-nav-col a {
    font-size: 0.85rem;
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.2s;
    display: inline-block;
}
.f2-nav-col a:hover {
    color: var(--accent);
    transform: translateX(4px);
}

/* 订阅 + 版权 */
.f2-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 56px 36px;
    border-top: 1px solid rgba(184, 74, 58, 0.15);
    flex-wrap: wrap;
    gap: 20px;
}
.f2-subscribe {
    display: flex;
    align-items: center;
    gap: 16px;
}
.f2-sub-label {
    font-size: 0.78rem;
    color: var(--text-light);
    letter-spacing: 0.5px;
}
.f2-sub-form {
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--text-light);
    padding-bottom: 4px;
    transition: border-color 0.2s;
}
.f2-sub-form:focus-within {
    border-color: var(--accent);
}
.f2-sub-form input {
    background: transparent;
    border: none;
    outline: none;
    font-size: 0.82rem;
    color: var(--text);
    width: 180px;
    padding: 4px 0;
    font-family: inherit;
}
.f2-sub-form input::placeholder {
    color: var(--text-light);
    opacity: 0.6;
}
.f2-sub-form button {
    background: transparent;
    border: none;
    color: var(--accent);
    cursor: pointer;
    font-size: 0.85rem;
    padding: 4px;
    transition: transform 0.2s;
}
.f2-sub-form button:hover {
    transform: translateX(3px);
}
.f2-meta {
    display: flex;
    align-items: center;
    gap: 24px;
}
.f2-meta > span {
    font-size: 0.76rem;
    color: var(--text-light);
}
.f2-social {
    display: flex;
    gap: 10px;
}
.f2-social a {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    color: var(--text-light);
    font-size: 0.85rem;
    background: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    transition: all 0.25s;
}
.f2-social a:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(184, 74, 58, 0.08);
    transform: translateY(-2px);
}

/* F2 响应式 */
@media (max-width: 1024px) {
    .f2-hero {
        flex-direction: column;
        align-items: flex-start;
        gap: 32px;
        padding: 48px 36px 40px;
    }
    .f2-mega {
        font-size: 3.4rem;
    }
    .f2-circle-btn {
        width: 100px;
        height: 100px;
    }
    .f2-body {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 40px 36px;
    }
    .footer-v2::before {
        font-size: 9rem;
    }
}
@media (max-width: 600px) {
    .f2-hero {
        padding: 36px 24px 32px;
        gap: 24px;
    }
    .f2-mega {
        font-size: 2.5rem;
    }
    .f2-circle-btn {
        width: 88px;
        height: 88px;
    }
    .f2-circle-btn span {
        font-size: 0.75rem;
    }
    .f2-body {
        padding: 32px 24px;
        gap: 32px;
    }
    .f2-nav {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
    }
    .f2-foot {
        padding: 20px 24px 28px;
        flex-direction: column;
        align-items: flex-start;
    }
    .f2-subscribe {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .footer-v2::before {
        font-size: 5.5rem;
        right: -10px;
    }
}

/* ============ F2b 左右分屏式页脚 ============ */
.footer-v2b {
    background: linear-gradient(180deg, #faf5ec 0%, #f3e9d8 100%);
    border-top: 1px solid var(--border);
    border-radius: 28px 28px 0 0;
    padding: 0;
    margin: 0 auto;
    max-width: 1440px;
    overflow: hidden;
    color: var(--text-light);
}
.fb2-split {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 0;
}
.fb2-left {
    padding: 64px 56px 56px;
    border-right: 1px solid rgba(184, 74, 58, 0.12);
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.fb2-kicker {
    font-size: 0.72rem;
    color: var(--accent);
    letter-spacing: 2.5px;
    text-transform: uppercase;
    font-weight: 500;
}
.fb2-claim {
    font-family: var(--serif);
    font-size: 4rem;
    line-height: 1.1;
    font-weight: 400;
    color: var(--text);
    margin: 0;
    letter-spacing: -1.5px;
}
.fb2-claim em {
    font-style: italic;
    color: var(--accent);
}
.fb2-narrative {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
    max-width: 400px;
}
.fb2-contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: auto;
    padding-top: 24px;
}
.fb2-contact a,
.fb2-contact span {
    font-size: 0.82rem;
    color: var(--text-light);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: color 0.2s;
}
.fb2-contact a:hover {
    color: var(--accent);
}
.fb2-contact i {
    color: var(--accent);
    font-size: 0.8rem;
    width: 14px;
    text-align: center;
}
.fb2-right {
    padding: 64px 48px 56px;
    display: flex;
    flex-direction: column;
    gap: 36px;
}
.fb2-cta-card {
    background: var(--text);
    color: var(--bg);
    border-radius: 20px;
    padding: 28px 28px 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.fb2-cta-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.fb2-cta-label {
    font-size: 0.72rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
}
.fb2-cta-desc {
    font-family: var(--serif);
    font-size: 1.4rem;
    color: var(--bg);
}
.fb2-cta-btn {
    background: var(--accent);
    color: #fff;
    padding: 14px 24px;
    border-radius: 999px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s;
}
.fb2-cta-btn i {
    transition: transform 0.3s;
}
.fb2-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(184, 74, 58, 0.4);
}
.fb2-cta-btn:hover i {
    transform: translateX(4px);
}
.fb2-cta-link {
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
    font-size: 0.78rem;
    text-align: center;
    transition: color 0.2s;
}
.fb2-cta-link:hover {
    color: var(--bg);
}
.fb2-nav-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.fb2-nav-col {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.fb2-nav-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text);
    margin-bottom: 6px;
}
.fb2-nav-col a {
    font-size: 0.82rem;
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s;
}
.fb2-nav-col a:hover {
    color: var(--accent);
}
.fb2-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 22px 56px 32px;
    border-top: 1px solid rgba(184, 74, 58, 0.12);
    flex-wrap: wrap;
    gap: 16px;
}
.fb2-bottom > span {
    font-size: 0.76rem;
    color: var(--text-light);
}
.fb2-social {
    display: flex;
    gap: 10px;
}
.fb2-social a {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    color: var(--text-light);
    font-size: 0.85rem;
    background: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    transition: all 0.25s;
}
.fb2-social a:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(184, 74, 58, 0.08);
    transform: translateY(-2px);
}

/* F2b 响应式 */
@media (max-width: 1024px) {
    .fb2-split {
        grid-template-columns: 1fr;
    }
    .fb2-left {
        border-right: none;
        border-bottom: 1px solid rgba(184, 74, 58, 0.12);
        padding: 48px 36px 40px;
    }
    .fb2-claim {
        font-size: 3.2rem;
    }
    .fb2-right {
        padding: 40px 36px;
    }
}
@media (max-width: 600px) {
    .fb2-left {
        padding: 40px 24px 32px;
    }
    .fb2-claim {
        font-size: 2.4rem;
    }
    .fb2-right {
        padding: 32px 24px;
        gap: 28px;
    }
    .fb2-nav-cols {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    .fb2-bottom {
        padding: 20px 24px 28px;
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ============ F4 海报式不对称页脚 ============ */
.footer-v4 {
    background: linear-gradient(180deg, #faf5ec 0%, #f3e9d8 100%);
    border-top: 1px solid var(--border);
    border-radius: 28px 28px 0 0;
    padding: 0;
    margin: 0 auto;
    max-width: 1440px;
    overflow: hidden;
    color: var(--text-light);
    position: relative;
}
.footer-v4::after {
    content: 'QIUQUE';
    position: absolute;
    bottom: -32px;
    left: -10px;
    font-family: var(--serif);
    font-size: 11rem;
    font-weight: 400;
    color: rgba(184, 74, 58, 0.04);
    line-height: 0.8;
    pointer-events: none;
    letter-spacing: -6px;
    z-index: 0;
}
.footer-v4 > * {
    position: relative;
    z-index: 1;
}
.f4-grid {
    display: grid;
    grid-template-columns: 1.7fr 1fr;
    gap: 56px;
    padding: 72px 56px 56px;
    align-items: start;
}
.f4-brand {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.f4-logo {
    font-family: var(--serif);
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--text);
}
.f4-logo span {
    color: var(--accent);
}
.f4-claim {
    font-family: var(--serif);
    font-size: 5rem;
    line-height: 1.05;
    font-weight: 400;
    color: var(--text);
    margin: 0;
    letter-spacing: -2px;
}
.f4-claim em {
    font-style: italic;
    color: var(--accent);
}
.f4-sub {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
    max-width: 440px;
}
.f4-action {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 32px 32px 28px;
    background: rgba(255, 255, 255, 0.45);
    border: 1px solid rgba(184, 74, 58, 0.15);
    border-radius: 20px;
    backdrop-filter: blur(8px);
}
.f4-kicker {
    font-size: 0.72rem;
    color: var(--accent);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 600;
}
.f4-hook {
    font-family: var(--serif);
    font-size: 1.35rem;
    line-height: 1.35;
    color: var(--text);
    margin: 0;
}
.f4-btn {
    background: var(--text);
    color: var(--bg);
    padding: 14px 24px;
    border-radius: 999px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s;
    margin-top: 4px;
}
.f4-btn i {
    transition: transform 0.3s;
}
.f4-btn:hover {
    background: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(184, 74, 58, 0.35);
}
.f4-btn:hover i {
    transform: translateX(4px);
}
.f4-contact {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 12px;
    padding-top: 16px;
    border-top: 1px solid rgba(184, 74, 58, 0.15);
}
.f4-contact a,
.f4-contact span {
    font-size: 0.8rem;
    color: var(--text-light);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: color 0.2s;
}
.f4-contact a:hover {
    color: var(--accent);
}
.f4-contact i {
    color: var(--accent);
    font-size: 0.78rem;
    width: 14px;
    text-align: center;
}
.f4-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 56px 32px;
    border-top: 1px solid rgba(184, 74, 58, 0.15);
    flex-wrap: wrap;
    gap: 20px;
}
.f4-nav {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
}
.f4-nav a {
    font-size: 0.82rem;
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s;
    padding: 4px 10px;
    border-radius: 999px;
}
.f4-nav a:hover {
    color: var(--accent);
    background: rgba(184, 74, 58, 0.08);
}
.f4-meta {
    display: flex;
    align-items: center;
    gap: 20px;
}
.f4-meta > span {
    font-size: 0.76rem;
    color: var(--text-light);
}
.f4-social {
    display: flex;
    gap: 10px;
}
.f4-social a {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    color: var(--text-light);
    font-size: 0.85rem;
    background: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    transition: all 0.25s;
}
.f4-social a:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(184, 74, 58, 0.08);
    transform: translateY(-2px);
}

/* F4 响应式 */
@media (max-width: 1024px) {
    .f4-grid {
        grid-template-columns: 1fr;
        gap: 36px;
        padding: 56px 36px 44px;
    }
    .f4-claim {
        font-size: 3.8rem;
    }
    .f4-action {
        padding: 28px 28px 24px;
    }
    .footer-v4::after {
        font-size: 8rem;
    }
}
@media (max-width: 600px) {
    .f4-grid {
        padding: 44px 24px 36px;
        gap: 28px;
    }
    .f4-claim {
        font-size: 2.8rem;
        letter-spacing: -1px;
    }
    .f4-sub {
        font-size: 0.88rem;
    }
    .f4-action {
        padding: 24px 22px 22px;
    }
    .f4-hook {
        font-size: 1.2rem;
    }
    .f4-foot {
        padding: 20px 24px 28px;
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    .f4-nav {
        gap: 4px;
    }
    .f4-nav a {
        padding: 4px 8px;
        font-size: 0.78rem;
    }
    .footer-v4::after {
        font-size: 5rem;
    }
}

/* ============ F5 深色终端式页脚 ============ */
.footer-v5 {
    --f5-bg: #1a1817;
    --f5-surface: #221f1d;
    --f5-text: #e8e4df;
    --f5-muted: #9a9490;
    --f5-accent: #d47262;
    --f5-green: #9bbf8a;
    --f5-border: #2e2a28;
    --f5-mono: 'SF Mono', 'Cascadia Code', 'JetBrains Mono', 'Consolas', 'Monaco', monospace;

    background: var(--f5-bg);
    border-top: 1px solid var(--f5-border);
    border-radius: 0;
    padding: 56px 52px 36px;
    margin: 0 auto;
    max-width: 1440px;
    color: var(--f5-text);
    font-family: var(--f5-mono);
    font-size: 0.85rem;
    line-height: 1.7;
}
.f5-terminal {
    background: var(--f5-surface);
    border: 1px solid var(--f5-border);
    border-radius: 12px;
    overflow: hidden;
    max-width: 760px;
    margin: 0 auto;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.25);
}
.f5-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: #2a2624;
    border-bottom: 1px solid var(--f5-border);
}
.f5-traffic {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}
.f5-traffic-r { background: #ed6a5e; }
.f5-traffic-y { background: #f5bf4f; }
.f5-traffic-g { background: #62c554; }
.f5-win-title {
    margin-left: 12px;
    font-size: 0.75rem;
    color: var(--f5-muted);
    letter-spacing: 0.3px;
}
.f5-body {
    padding: 24px 24px 28px;
}
.f5-line {
    margin-bottom: 6px;
    word-break: break-word;
}
.f5-prompt {
    color: var(--f5-green);
    margin-right: 8px;
    font-weight: 600;
}
.f5-cmd {
    color: var(--f5-text);
}
.f5-out {
    padding: 4px 0 14px 20px;
    border-left: 2px solid var(--f5-border);
    margin: 4px 0 14px 4px;
}
.f5-txt {
    margin: 0;
    color: var(--f5-muted);
    font-size: 0.82rem;
}
.f5-dir {
    color: var(--f5-accent);
}
.f5-prop {
    color: #8ec5d8;
}
.f5-val {
    color: var(--f5-green);
    text-decoration: none;
    transition: color 0.2s;
}
.f5-val:hover {
    color: var(--f5-accent);
    text-decoration: underline;
}
.f5-comma {
    color: var(--f5-muted);
}
.f5-linkval {
    color: #c8b88a;
    text-decoration: none;
    transition: color 0.2s;
}
.f5-linkval:hover {
    color: var(--f5-accent);
    text-decoration: underline;
}
.f5-cursor {
    color: var(--f5-accent);
    animation: f5-blink 1.1s steps(1) infinite;
}
@keyframes f5-blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}
.f5-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--f5-border);
    flex-wrap: wrap;
    gap: 16px;
}
.f5-comment {
    color: var(--f5-muted);
    font-size: 0.76rem;
    opacity: 0.7;
}
.f5-cta {
    color: var(--f5-accent);
    text-decoration: none;
    font-size: 0.82rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border: 1px solid var(--f5-accent);
    border-radius: 6px;
    transition: all 0.25s;
}
.f5-cta:hover {
    background: var(--f5-accent);
    color: var(--f5-bg);
}
.f5-cta i {
    transition: transform 0.25s;
}
.f5-cta:hover i {
    transform: translateX(4px);
}

/* F5 响应式 */
@media (max-width: 1024px) {
    .footer-v5 {
        padding: 44px 32px 28px;
    }
    .f5-body {
        padding: 20px 18px 24px;
    }
}
@media (max-width: 600px) {
    .footer-v5 {
        padding: 32px 18px 24px;
        font-size: 0.78rem;
    }
    .f5-terminal {
        border-radius: 10px;
    }
    .f5-bar {
        padding: 10px 12px;
    }
    .f5-win-title {
        font-size: 0.7rem;
    }
    .f5-body {
        padding: 18px 14px 20px;
    }
    .f5-out {
        padding-left: 14px;
    }
    .f5-txt {
        font-size: 0.76rem;
    }
    .f5-foot {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }
    .f5-cta {
        align-self: stretch;
        justify-content: center;
    }
}

/* ============ F6 亮色编辑/出版物版面页脚 ============ */
.footer-v6 {
    background: var(--bg);
    border-top: 1px solid var(--border);
    border-radius: 0;
    padding: 56px 56px 32px;
    margin: 0 auto;
    max-width: 1440px;
    color: var(--text-light);
}
.f6-masthead {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 24px;
    flex-wrap: wrap;
    padding-bottom: 20px;
}
.f6-brand-line {
    display: flex;
    align-items: baseline;
    gap: 16px;
    flex-wrap: wrap;
}
.f6-name {
    font-family: var(--serif);
    font-size: 2.6rem;
    font-weight: 400;
    color: var(--text);
    line-height: 1;
    letter-spacing: -1px;
}
.f6-tag {
    font-size: 0.82rem;
    color: var(--text-light);
    letter-spacing: 0.3px;
}
.f6-issue {
    font-family: var(--serif);
    font-style: italic;
    font-size: 0.85rem;
    color: var(--accent);
    letter-spacing: 1px;
}
.f6-rule {
    border: none;
    border-top: 1px solid var(--border);
    margin: 0;
}
.f6-rule-thick {
    border-top: 2px solid var(--text);
}
.f6-claim {
    font-family: var(--serif);
    font-size: 1.5rem;
    line-height: 1.4;
    color: var(--text);
    text-align: center;
    padding: 28px 0;
    margin: 0;
    letter-spacing: -0.3px;
}
.f6-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    padding: 36px 0;
}
.f6-col {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.f6-col-head {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text);
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}
.f6-col-body {
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
}
.f6-col-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 4px;
}
.f6-col-links a {
    font-size: 0.82rem;
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.f6-col-links a::before {
    content: '—';
    color: var(--border);
    transition: color 0.2s;
}
.f6-col-links a:hover {
    color: var(--accent);
}
.f6-col-links a:hover::before {
    color: var(--accent);
}
.f6-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 22px;
    flex-wrap: wrap;
    gap: 16px;
}
.f6-nav {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    align-items: center;
}
.f6-nav a {
    font-size: 0.8rem;
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s;
    padding: 5px 12px;
    border-radius: 4px;
}
.f6-nav a:hover {
    color: var(--accent);
    background: rgba(184, 74, 58, 0.07);
}
.f6-meta {
    display: flex;
    align-items: center;
    gap: 20px;
}
.f6-meta > span {
    font-size: 0.74rem;
    color: var(--text-light);
}
.f6-social {
    display: flex;
    gap: 10px;
}
.f6-social a {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    color: var(--text-light);
    font-size: 0.82rem;
    background: var(--bg);
    text-decoration: none;
    transition: all 0.25s;
}
.f6-social a:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* F6 响应式 */
@media (max-width: 1024px) {
    .footer-v6 {
        padding: 44px 36px 28px;
    }
    .f6-name {
        font-size: 2.2rem;
    }
    .f6-claim {
        font-size: 1.3rem;
        padding: 22px 0;
    }
    .f6-cols {
        gap: 32px;
        padding: 28px 0;
    }
}
@media (max-width: 600px) {
    .footer-v6 {
        padding: 36px 22px 24px;
    }
    .f6-masthead {
        padding-bottom: 16px;
    }
    .f6-name {
        font-size: 1.9rem;
    }
    .f6-tag {
        font-size: 0.78rem;
    }
    .f6-claim {
        font-size: 1.15rem;
        padding: 18px 0;
    }
    .f6-cols {
        grid-template-columns: 1fr;
        gap: 28px;
        padding: 24px 0;
    }
    .f6-foot {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }
    .f6-nav a {
        padding: 5px 9px;
        font-size: 0.76rem;
    }
}

/* ================================================================
   F7 — 签名档 / 信件落款风格
   温暖、有人情味、卡片式交互
   ================================================================ */
.footer-v7 {
    background: linear-gradient(165deg, #f5f1eb 0%, #ede8e0 50%, #e8e3db 100%);
    border-top: 0;
    border-radius: 24px 24px 0 0;
    padding: 64px 52px 44px;
    margin: 0 auto;
    max-width: 1440px;
    position: relative;
}
.footer-v7::before {
    content: '';
    position: absolute;
    top: 0;
    left: 52px;
    right: 52px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.f7-inner {
    max-width: 960px;
    margin: 0 auto;
}

/* 签名区 */
.f7-signature {
    display: flex;
    align-items: flex-start;
    gap: 28px;
    margin-bottom: 48px;
    padding-bottom: 36px;
    border-bottom: 1px solid var(--border);
}
.f7-sig-mark {
    font-family: var(--serif);
    font-size: 3.2rem;
    color: var(--accent);
    line-height: 1;
    opacity: 0.65;
    user-select: none;
    flex-shrink: 0;
}
.f7-sig-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-top: 6px;
}
.f7-sig-line {
    font-family: var(--serif);
    font-size: 1.55rem;
    color: var(--text);
    line-height: 1.35;
    letter-spacing: -0.2px;
    margin: 0;
}
.f7-sig-name {
    font-size: 0.88rem;
    color: var(--text-light);
    margin: 6px 0 0;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}
.f7-sig-accent {
    color: var(--accent);
    font-weight: 600;
}

/* 卡片网格 */
.f7-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}
.f7-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 24px 20px;
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid var(--border);
    border-radius: 14px;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}
.f7-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(184, 74, 58, 0.04), transparent 60%);
    opacity: 0;
    transition: opacity 0.3s;
}
.f7-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
    border-color: rgba(184, 74, 58, 0.2);
}
.f7-card:hover::after {
    opacity: 1;
}
.f7-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--bg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    color: var(--accent);
    transition: all 0.3s;
    position: relative;
    z-index: 1;
}
.f7-card:hover .f7-card-icon {
    background: var(--accent);
    color: #fff;
}
.f7-card-label {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text);
    position: relative;
    z-index: 1;
}
.f7-card-desc {
    font-size: 0.82rem;
    color: var(--text-light);
    line-height: 1.5;
    position: relative;
    z-index: 1;
}
.f7-card-arrow {
    font-size: 1.1rem;
    color: var(--border);
    margin-top: auto;
    padding-top: 8px;
    transition: all 0.3s;
    position: relative;
    z-index: 1;
}
.f7-card:hover .f7-card-arrow {
    color: var(--accent);
    transform: translateX(4px);
}

/* 分割线 */
.f7-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border) 20%, var(--border) 80%, transparent);
    margin-bottom: 32px;
}

/* 底部 */
.f7-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
}
.f7-links {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
}
.f7-links a {
    font-size: 0.78rem;
    color: var(--text-light);
    text-decoration: none;
    padding: 5px 11px;
    border-radius: 6px;
    transition: all 0.2s;
}
.f7-links a:hover {
    color: var(--accent);
    background: rgba(184, 74, 58, 0.07);
}
.f7-legal {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.72rem;
    color: var(--text-muted);
}
.f7-sep {
    opacity: 0.4;
}
.f7-social {
    display: flex;
    gap: 8px;
}
.f7-social a {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    color: var(--text-light);
    font-size: 0.82rem;
    background: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: all 0.25s;
}
.f7-social a:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(184, 74, 58, 0.15);
}

/* F7 响应式 */
@media (max-width: 1024px) {
    .footer-v7 {
        padding: 52px 36px 36px;
    }
    .f7-sig-line {
        font-size: 1.35rem;
    }
    .f7-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }
}
@media (max-width: 600px) {
    .footer-v7 {
        padding: 40px 22px 28px;
        border-radius: 16px 16px 0 0;
    }
    .footer-v7::before {
        left: 22px;
        right: 22px;
    }
    .f7-signature {
        flex-direction: column;
        gap: 16px;
        margin-bottom: 36px;
        padding-bottom: 28px;
    }
    .f7-sig-mark {
        font-size: 2.4rem;
    }
    .f7-sig-line {
        font-size: 1.2rem;
    }
    .f7-cards {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
        margin-bottom: 32px;
    }
    .f7-card {
        padding: 18px 16px;
    }
    .f7-card-icon {
        width: 36px;
        height: 36px;
        font-size: 0.85rem;
    }
    .f7-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }
    .f7-legal {
        flex-wrap: wrap;
        gap: 4px 8px;
    }
}

/* ================================================================
   F8 — 仪表盘 / 控制台风格
   模块化面板、状态指示灯、技术感但温暖
   ================================================================ */
.footer-v8 {
    background: var(--bg);
    border-top: 1px solid var(--border);
    border-radius: 24px 24px 0 0;
    padding: 0;
    margin: 0 auto;
    max-width: 1440px;
}
.f8-inner {
    padding: 48px 52px 36px;
}

/* 状态栏 */
.f8-status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    background: rgba(0, 0, 0, 0.03);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 32px;
}
.f8-status-left,
.f8-status-right {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    text-transform: uppercase;
}
.f8-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    display: inline-block;
}
.f8-dot-green {
    background: #4ade80;
    box-shadow: 0 0 6px rgba(74, 222, 128, 0.5);
    animation: f8-pulse-dot 2s ease-in-out infinite;
}
@keyframes f8-pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.45; }
}
.f8-brand-badge {
    font-family: var(--serif);
    display: flex;
    align-items: baseline;
    gap: 8px;
}
.f8-bb-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: 2px;
}
.f8-bb-sep {
    color: var(--accent);
    font-weight: 300;
}
.f8-bb-sub {
    font-size: 0.72rem;
    font-weight: 400;
    color: var(--text-light);
    letter-spacing: 2.5px;
}

/* 主标语模块 */
.f8-hero-module {
    text-align: center;
    padding: 40px 20px 44px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
}
.f8-hm-label {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}
.f8-hm-text {
    font-family: var(--serif);
    font-size: 2.2rem;
    font-weight: 400;
    line-height: 1.35;
    color: var(--text);
    letter-spacing: -0.5px;
    margin: 0;
}
.f8-hm-accent {
    color: var(--accent);
    font-style: italic;
}

/* 仪表网格 */
.f8-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 32px;
}
.f8-module {
    display: flex;
    flex-direction: column;
    padding: 22px 18px;
    background: #fffdf9;
    border: 1px solid var(--border);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}
.f8-module::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--border);
    transition: background 0.28s;
}
.f8-module:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    border-color: rgba(184, 74, 58, 0.15);
}
.f8-module:hover::before {
    background: var(--accent);
}
.f8-mod-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
}
.f8-mod-id {
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--accent);
    font-family: monospace, var(--sans);
    letter-spacing: 1px;
}
.f8-mod-tag {
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-muted);
}
.f8-mod-indicator {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--border);
    margin-left: auto;
    transition: background 0.28s;
}
.f8-mod-indicator-pulse {
    background: var(--accent);
    animation: f8-pulse-dot 1.5s ease-in-out infinite;
}
.f8-module:hover .f8-mod-indicator:not(.f8-mod-indicator-pulse) {
    background: var(--accent);
}
.f8-mod-body {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}
.f8-mod-title {
    font-family: var(--serif);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text);
}
.f8-mod-desc {
    font-size: 0.78rem;
    color: var(--text-light);
    line-height: 1.55;
}
.f8-mod-footer {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}
.f8-mod-action {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    transition: color 0.2s;
}
.f8-mod-footer i {
    font-size: 0.6rem;
    color: var(--text-muted);
    transition: all 0.2s;
}
.f8-module:hover .f8-mod-action {
    color: var(--accent);
}
.f8-module:hover .f8-mod-footer i {
    color: var(--accent);
    transform: translateX(3px);
}

/* 高亮模块（联系） */
.f8-module-highlight {
    background: linear-gradient(135deg, rgba(184, 74, 58, 0.04), rgba(184, 74, 58, 0.01));
    border-color: rgba(184, 74, 58, 0.12);
}
.f8-module-highlight::before {
    background: var(--accent);
}
.f8-module-highlight:hover {
    border-color: var(--accent);
    box-shadow: 0 10px 30px rgba(184, 74, 58, 0.1);
}

/* 底部导航栏 */
.f8-nav-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 16px;
}
.f8-nav {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}
.f8-nav a {
    font-size: 0.76rem;
    color: var(--text-light);
    text-decoration: none;
    padding: 6px 13px;
    border-radius: 6px;
    transition: all 0.2s;
}
.f8-nav a:hover {
    color: var(--accent);
    background: rgba(184, 74, 58, 0.06);
}
.f8-nav-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.7rem;
    color: var(--text-muted);
}
.f8-meta-sep {
    opacity: 0.35;
}
.f8-nav-meta a {
    color: var(--text-light);
    text-decoration: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    font-size: 0.72rem;
    transition: all 0.22s;
}
.f8-nav-meta a:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* F8 响应式 */
@media (max-width: 1024px) {
    .f8-inner {
        padding: 40px 36px 30px;
    }
    .f8-hm-text {
        font-size: 1.85rem;
    }
    .f8-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}
@media (max-width: 600px) {
    .f8-inner {
        padding: 32px 20px 24px;
    }
    .footer-v8 {
        border-radius: 16px 16px 0 0;
    }
    .f8-status-bar {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
        padding: 12px 16px;
    }
    .f8-brand-badge {
        order: -1;
        width: 100%;
        justify-content: center;
    }
    .f8-hm-text {
        font-size: 1.45rem;
    }
    .f8-hm-module {
        padding: 30px 16px 34px;
    }
    .f8-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    .f8-module {
        padding: 18px 16px;
    }
    .f8-nav-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }
    .f8-nav {
        width: 100%;
        justify-content: flex-start;
    }
}

/* ================================================================
   F9 — 对仗 / 双栏叙事风格
   东方韵律 · 均衡对称 · 执应相生
   ================================================================ */
.footer-v9 {
    background: var(--bg);
    border-top: 1px solid var(--border);
    border-radius: 24px 24px 0 0;
    padding: 0;
    margin: 0 auto;
    max-width: 1440px;
}
.f9-inner {
    padding: 60px 56px 40px;
}

/* 宣言区 */
.f9-proclamation {
    text-align: center;
    padding-bottom: 36px;
}
.f9-pro-lead {
    font-family: var(--serif);
    font-size: 2rem;
    font-weight: 400;
    color: var(--text);
    line-height: 1.4;
    letter-spacing: -0.3px;
}
.f9-pro-emph {
    font-family: var(--serif);
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--accent);
    font-style: italic;
    line-height: 1.15;
    letter-spacing: -1px;
}

/* 水平分割 */
.f9-divider-h {
    height: 1px;
    background: linear-gradient(90deg, transparent 5%, var(--border) 30%, var(--border) 70%, transparent 95%);
    margin: 0;
}

/* 对仗双栏 */
.f9-couplet {
    display: grid;
    grid-template-columns: 1fr 1px 1fr;
    gap: 0;
    padding: 44px 0;
    align-items: start;
}
.f9-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 0 36px;
}
.f9-col-left {
    grid-column: 1;
    grid-row: 1;
    align-items: flex-end;
    text-align: right;
}
.f9-col-right {
    grid-column: 3;
    grid-row: 1;
    align-items: flex-start;
    text-align: left;
}
/* 中间竖线 */
.f9-couplet::before {
    content: '';
    grid-column: 2;
    grid-row: 1;
    background: var(--border);
    width: 1px;
}
.f9-couplet::after {
    display: none;
}

.f9-col-title {
    font-family: var(--serif);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1;
    letter-spacing: -2px;
    opacity: 0.9;
}
.f9-col-summary {
    font-size: 0.88rem;
    color: var(--text-light);
    line-height: 1.8;
    margin: 0;
    max-width: 340px;
}
.f9-col-nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 8px;
}
.f9-col-nav a {
    font-size: 0.84rem;
    color: var(--text);
    text-decoration: none;
    transition: color 0.25s;
    display: flex;
    align-items: center;
    gap: 8px;
    line-height: 1.6;
}
.f9-col-left .f9-col-nav a {
    flex-direction: row-reverse;
}
.f9-col-nav a span {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
    transition: color 0.25s;
}
.f9-col-nav a i {
    color: var(--text-muted);
    font-size: 0.78rem;
    width: 18px;
    text-align: center;
    transition: color 0.25s;
}
.f9-col-nav a:hover {
    color: var(--accent);
}
.f9-col-nav a:hover span,
.f9-col-nav a:hover i {
    color: var(--accent);
}

/* 底栏 */
.f9-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 28px;
    flex-wrap: wrap;
    gap: 18px;
}
.f9-foot-brand {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.f9-foot-logo {
    font-family: var(--serif);
    font-weight: 700;
    font-size: 1rem;
    color: var(--text);
}
.f9-foot-dot {
    color: var(--accent);
}
.f9-foot-right {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}
.f9-foot-nav {
    display: flex;
    gap: 2px;
}
.f9-foot-nav a {
    font-size: 0.76rem;
    color: var(--text-light);
    text-decoration: none;
    padding: 5px 11px;
    border-radius: 6px;
    transition: all 0.2s;
}
.f9-foot-nav a:hover {
    color: var(--accent);
    background: rgba(184, 74, 58, 0.06);
}
.f9-foot-copy {
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* F9 响应式 */
@media (max-width: 1024px) {
    .f9-inner {
        padding: 48px 36px 32px;
    }
    .f9-pro-lead {
        font-size: 1.6rem;
    }
    .f9-pro-emph {
        font-size: 2.6rem;
    }
    .f9-col {
        padding: 0 22px;
    }
    .f9-col-title {
        font-size: 2.8rem;
    }
}
@media (max-width: 700px) {
    .f9-inner {
        padding: 36px 22px 28px;
    }
    .footer-v9 {
        border-radius: 16px 16px 0 0;
    }
    .f9-pro-lead {
        font-size: 1.3rem;
    }
    .f9-pro-emph {
        font-size: 2rem;
    }
    .f9-proclamation {
        padding-bottom: 26px;
    }
    .f9-couplet {
        grid-template-columns: 1fr;
        padding: 28px 0;
        gap: 32px;
    }
    /* 隐藏中间竖线 */
    .f9-couplet::before {
        display: none;
    }
    .f9-col {
        padding: 0;
        align-items: flex-start;
        text-align: left;
    }
    .f9-col-left .f9-col-nav a {
        flex-direction: row;
    }
    .f9-col-title {
        font-size: 2.4rem;
    }
    .f9-col-summary {
        max-width: 100%;
    }
    .f9-foot {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }
    .f9-foot-right {
        width: 100%;
        justify-content: space-between;
    }
}

/* ================================================================
   F10 — F1 CTA × F9 对仗融合
   CTA 行动力 + 执应双栏 + 完整底栏
   ================================================================ */
.footer-v10 {
    background: linear-gradient(180deg, var(--bg) 0%, #f3efe9 50%, var(--bg) 100%);
    border-top: 1px solid var(--border);
    border-radius: 28px 28px 0 0;
    padding: 60px 56px 40px;
    margin: 0 auto;
    max-width: 1440px;
}

/* ── CTA 区 ── */
.f10-cta {
    text-align: center;
    padding-bottom: 40px;
}
.f10-cta-label {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin: 0 0 12px;
}
.f10-cta-title {
    font-family: var(--serif);
    font-size: 2.5rem;
    font-weight: 400;
    color: var(--text);
    line-height: 1.3;
    margin: 0 0 16px;
    letter-spacing: -0.5px;
}
.f10-cta-emph {
    color: var(--accent);
    font-style: italic;
}
.f10-cta-sub {
    font-size: 0.92rem;
    color: var(--text-light);
    line-height: 1.7;
    margin: 0 0 28px;
}
.f10-cta-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}
.f10-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.25s;
    cursor: pointer;
}
.f10-btn-primary {
    background: var(--accent);
    color: #fff;
    border: 2px solid var(--accent);
}
.f10-btn-primary i {
    transition: transform 0.25s;
}
.f10-btn-primary:hover {
    background: #a03a2d;
    border-color: #a03a2d;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(184, 74, 58, 0.3);
}
.f10-btn-primary:hover i {
    transform: translateX(3px);
}
.f10-btn-ghost {
    background: transparent;
    color: var(--text);
    border: 2px solid var(--border);
}
.f10-btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* ── 分割线 ── */
.f10-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border) 30%, var(--border) 70%, transparent);
    margin: 0;
}

/* ── 对仗双栏 ── */
.f10-couplet {
    display: grid;
    grid-template-columns: 1fr 1px 1fr;
    padding: 44px 0;
    align-items: start;
}
.f10-col {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 0 40px;
}
.f10-col-left {
    grid-column: 1;
    grid-row: 1;
    align-items: flex-end;
    text-align: right;
}
.f10-col-right {
    grid-column: 3;
    grid-row: 1;
    align-items: flex-start;
    text-align: left;
}
.f10-couplet::before {
    content: '';
    grid-column: 2;
    grid-row: 1;
    background: linear-gradient(180deg, transparent 5%, var(--border) 20%, var(--border) 80%, transparent 95%);
    width: 1px;
}
.f10-couplet::after {
    display: none;
}
.f10-col-title {
    font-family: var(--serif);
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1;
    letter-spacing: -2px;
    opacity: 0.85;
}
.f10-col-desc {
    font-size: 0.86rem;
    color: var(--text-light);
    line-height: 1.8;
    margin: 0;
    max-width: 320px;
}
.f10-col-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 4px;
    padding: 0;
}
.f10-col-links a {
    font-size: 0.84rem;
    color: var(--text);
    text-decoration: none;
    transition: color 0.25s;
    display: flex;
    align-items: center;
    gap: 8px;
}
.f10-col-left .f10-col-links a {
    flex-direction: row-reverse;
}
.f10-col-links a span {
    font-size: 0.74rem;
    color: var(--text-muted);
    font-weight: 400;
    transition: color 0.25s;
}
.f10-col-links a i {
    color: var(--text-muted);
    font-size: 0.78rem;
    width: 18px;
    text-align: center;
    transition: color 0.25s;
}
.f10-col-links a:hover {
    color: var(--accent);
}
.f10-col-links a:hover span,
.f10-col-links a:hover i {
    color: var(--accent);
}

/* ── 底栏 ── */
.f10-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 28px;
    flex-wrap: wrap;
    gap: 18px;
}
.f10-bottom-brand {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.f10-bottom-logo {
    font-family: var(--serif);
    font-weight: 700;
    font-size: 1rem;
    color: var(--text);
}
.f10-bottom-dot {
    color: var(--accent);
}
.f10-bottom-nav {
    display: flex;
    gap: 2px;
    flex-wrap: wrap;
}
.f10-bottom-nav a {
    font-size: 0.76rem;
    color: var(--text-light);
    text-decoration: none;
    padding: 5px 11px;
    border-radius: 6px;
    transition: all 0.2s;
}
.f10-bottom-nav a:hover {
    color: var(--accent);
    background: rgba(184, 74, 58, 0.06);
}
.f10-bottom-right {
    display: flex;
    align-items: center;
    gap: 16px;
}
.f10-copy {
    font-size: 0.72rem;
    color: var(--text-muted);
}
.f10-social {
    display: flex;
    gap: 6px;
}
.f10-social a {
    width: 31px;
    height: 31px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    color: var(--text-light);
    font-size: 0.75rem;
    text-decoration: none;
    transition: all 0.22s;
}
.f10-social a:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(184, 74, 58, 0.12);
}

/* F10 响应式 */
@media (max-width: 1024px) {
    .footer-v10 {
        padding: 48px 36px 32px;
    }
    .f10-cta-title {
        font-size: 2rem;
    }
    .f10-col {
        padding: 0 22px;
    }
    .f10-col-title {
        font-size: 2.6rem;
    }
    .f10-bottom {
        gap: 14px;
    }
}
@media (max-width: 700px) {
    .footer-v10 {
        padding: 36px 22px 28px;
        border-radius: 18px 18px 0 0;
    }
    .f10-cta {
        padding-bottom: 30px;
    }
    .f10-cta-title {
        font-size: 1.6rem;
    }
    .f10-cta-sub {
        font-size: 0.84rem;
        margin-bottom: 22px;
    }
    .f10-btn {
        padding: 11px 22px;
        font-size: 0.82rem;
    }
    .f10-couplet {
        grid-template-columns: 1fr;
        padding: 28px 0;
        gap: 32px;
    }
    .f10-couplet::before {
        display: none;
    }
    .f10-col {
        padding: 0;
        align-items: flex-start;
        text-align: left;
    }
    .f10-col-left .f10-col-links a {
        flex-direction: row;
    }
    .f10-col-title {
        font-size: 2.2rem;
    }
    .f10-col-desc {
        max-width: 100%;
    }
    .f10-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }
    .f10-bottom-nav {
        width: 100%;
    }
}

/* ================================================================
   F11 — 票据 / 收据风格
   打孔线 · 明细表 · 条码装饰 · 生活质感
   ================================================================ */
.footer-v11 {
    background: var(--bg);
    border-top: 1px solid var(--border);
    border-radius: 24px 24px 0 0;
    padding: 56px 52px 44px;
    margin: 0 auto;
    max-width: 1440px;
    display: flex;
    justify-content: center;
}
.f11-receipt {
    max-width: 640px;
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 36px 40px 32px;
    background: #fffdfa;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
}

/* 票据头部 */
.f11-head {
    margin-bottom: 10px;
}
.f11-head-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
}
.f11-h-shop {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.f11-h-logo {
    font-family: var(--serif);
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: 2px;
}
.f11-h-sub {
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--text-muted);
    text-transform: uppercase;
}
.f11-h-meta {
    text-align: right;
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.f11-h-row {
    display: flex;
    gap: 10px;
    font-size: 0.68rem;
    font-family: monospace, var(--sans);
    color: var(--text-muted);
}
.f11-h-row span:first-child {
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--text-light);
}
.f11-h-note {
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 1px;
}

/* 打孔线 */
.f11-perf {
    height: 1px;
    margin: 16px 0;
    border: none;
    background: repeating-linear-gradient(90deg, var(--border) 0, var(--border) 6px, transparent 6px, transparent 12px);
}

/* 明细表 */
.f11-body {
    display: flex;
    flex-direction: column;
}
.f11-table-head {
    display: grid;
    grid-template-columns: 36px 64px 1fr 60px;
    gap: 8px;
    padding: 6px 0 10px;
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}
.f11-table-head span:last-child {
    text-align: right;
}
.f11-row {
    display: grid;
    grid-template-columns: 36px 64px 1fr 60px;
    gap: 8px;
    padding: 12px 0;
    text-decoration: none;
    border-bottom: 1px dotted rgba(0, 0, 0, 0.04);
    align-items: center;
    transition: all 0.22s;
}
.f11-row:hover {
    background: rgba(184, 74, 58, 0.03);
}
.f11-cell-id {
    font-family: monospace, var(--sans);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
}
.f11-cell-name {
    font-family: var(--serif);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
}
.f11-cell-detail {
    font-size: 0.78rem;
    color: var(--text-light);
}
.f11-cell-go {
    font-size: 0.74rem;
    color: var(--text-muted);
    text-align: right;
    transition: all 0.22s;
}
.f11-row:hover .f11-cell-name {
    color: var(--accent);
}
.f11-row:hover .f11-cell-go {
    color: var(--accent);
    transform: translateX(3px);
}

/* 合计 / CTA */
.f11-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    flex-wrap: wrap;
    gap: 12px;
}
.f11-total-label {
    font-size: 0.76rem;
    color: var(--text-muted);
    letter-spacing: 1px;
}
.f11-total-value {
    display: flex;
    align-items: center;
    gap: 16px;
}
.f11-total-amount {
    font-family: var(--serif);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
    font-style: italic;
}
.f11-total-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    background: var(--accent);
    color: #fff;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.22s;
}
.f11-total-cta i {
    transition: transform 0.22s;
}
.f11-total-cta:hover {
    background: #a03a2d;
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(184, 74, 58, 0.3);
}
.f11-total-cta:hover i {
    transform: translateX(3px);
}

/* 页脚区域 */
.f11-foot {
    text-align: center;
}
.f11-foot-contact {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 14px;
}
.f11-foot-sep {
    opacity: 0.3;
}
.f11-barcode {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 2px;
    margin-bottom: 14px;
    height: 32px;
}
.f11-bar {
    width: 2px;
    background: var(--text-muted);
    border-radius: 1px;
    opacity: 0.45;
}
.f11-thanks {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    font-size: 0.68rem;
    color: var(--text-muted);
    opacity: 0.7;
}

/* F11 响应式 */
@media (max-width: 700px) {
    .footer-v11 {
        padding: 32px 16px 28px;
        border-radius: 16px 16px 0 0;
    }
    .f11-receipt {
        padding: 24px 18px 22px;
    }
    .f11-table-head,
    .f11-row {
        grid-template-columns: 28px 52px 1fr 48px;
        gap: 4px;
        font-size: 0.7rem;
    }
    .f11-cell-detail {
        font-size: 0.72rem;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    .f11-cell-go {
        font-size: 0.68rem;
    }
    .f11-total {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .f11-total-amount {
        font-size: 1.2rem;
    }
    .f11-total-cta {
        padding: 8px 16px;
        font-size: 0.76rem;
    }
    .f11-head-top {
        flex-direction: column;
        gap: 12px;
    }
    .f11-h-meta {
        text-align: left;
    }
}

/* ================================================================
   F12 — 终端 / CLI 风格
   命令行界面 · ASCII banner · 代码美学
   ================================================================ */
.footer-v12 {
    background: #1a1a1e;
    border-radius: 24px 24px 0 0;
    padding: 48px 40px 36px;
    margin: 0 auto;
    max-width: 1440px;
}

/* 终端窗口 */
.f12-terminal {
    max-width: 780px;
    margin: 0 auto;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.35), 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* 标题栏 */
.f12-titlebar {
    display: flex;
    align-items: center;
    background: #2c2c32;
    padding: 12px 16px;
    gap: 12px;
}
.f12-tb-dots {
    display: flex;
    gap: 7px;
    flex-shrink: 0;
}
.f12-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
}
.f12-dot-red { background: #ff5f57; }
.f12-dot-yellow { background: #febc2e; }
.f12-dot-green { background: #28c840; }
.f12-tb-title {
    font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', 'JetBrains Mono', monospace, var(--sans);
    font-size: 0.7rem;
    color: #999;
    text-align: center;
    flex: 1;
    user-select: none;
}
.f12-tb-spacer {
    width: 46px;
    flex-shrink: 0;
}

/* 终端内容 */
.f12-content {
    background: #121216;
    padding: 28px 32px 24px;
    font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', 'JetBrains Mono', monospace, var(--sans);
    font-size: 0.8rem;
    line-height: 1.65;
    color: #c9d1d9;
    position: relative;
}

/* Banner */
.f12-banner {
    margin-bottom: 20px;
}
.f12-ascii {
    font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', 'JetBrains Mono', monospace, var(--sans);
    font-size: 0.55rem;
    line-height: 1.25;
    color: var(--accent, #b84a3a);
    margin: 0 0 8px;
    letter-spacing: 0;
    text-align: left;
}
.f12-tagline {
    font-size: 0.7rem;
    color: #6a737d;
    letter-spacing: 0.5px;
}

/* 提示符 */
.f12-prompt {
    color: #28c840;
    font-weight: 700;
    margin-right: 6px;
    user-select: none;
}
.f12-cmd-text {
    color: #79c0ff;
}

/* 帮助输出 */
.f12-commands {
    margin-bottom: 22px;
}
.f12-cmd-head {
    margin-bottom: 12px;
}
.f12-help-desc {
    color: #6a737d;
    font-size: 0.72rem;
    margin-bottom: 10px;
    padding-left: 20px;
}
.f12-help-grid {
    padding-left: 20px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.f12-cmd-link {
    display: flex;
    align-items: baseline;
    gap: 16px;
    text-decoration: none;
    padding: 2px 0;
    border-radius: 3px;
    transition: background 0.15s;
}
.f12-cmd-link:hover {
    background: rgba(255, 255, 255, 0.04);
}
.f12-cc {
    font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', 'JetBrains Mono', monospace, var(--sans);
    font-size: 0.78rem;
    color: #79c0ff;
    min-width: 80px;
    font-weight: 600;
}
.f12-cmd-link:hover .f12-cc {
    color: #ffa657;
}
.f12-cd {
    font-size: 0.76rem;
    color: #8b949e;
}
.f12-cmd-link:hover .f12-cd {
    color: #c9d1d9;
}

/* CTA 行 */
.f12-cta-line {
    margin: 22px 0 18px;
    display: flex;
    align-items: baseline;
    gap: 0;
    flex-wrap: wrap;
}
.f12-prompt-blink {
    animation: f12-blink 1.2s step-end infinite;
}
@keyframes f12-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}
.f12-cta-link {
    color: #ffa657;
    text-decoration: none;
    font-weight: 600;
    font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', 'JetBrains Mono', monospace, var(--sans);
    transition: color 0.2s;
}
.f12-cta-link:hover {
    color: #ff7b2b;
}
.f12-cursor {
    color: #c9d1d9;
    animation: f12-cursor-blink 1s step-end infinite;
}
@keyframes f12-cursor-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}
.f12-cta-hint {
    color: #484f58;
    font-size: 0.72rem;
    margin-left: 8px;
}

/* 系统信息 */
.f12-sysinfo {
    border-top: 1px solid #21262d;
    border-bottom: 1px solid #21262d;
    padding: 14px 0 12px;
    margin-bottom: 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.f12-si-row {
    display: flex;
    gap: 12px;
    font-size: 0.72rem;
}
.f12-si-key {
    color: #6a737d;
    min-width: 90px;
    flex-shrink: 0;
}
.f12-si-val {
    color: #8b949e;
}
.f12-si-ok {
    color: #56d364;
}

/* 最后提示符 */
.f12-last-prompt {
    display: flex;
    align-items: center;
}
.f12-prompt-dim {
    opacity: 0.4;
}
.f12-last-cursor {
    color: #c9d1d9;
    animation: f12-cursor-blink 1s step-end infinite;
}

/* F12 响应式 */
@media (max-width: 700px) {
    .footer-v12 {
        padding: 28px 12px 24px;
        border-radius: 14px 14px 0 0;
    }
    .f12-content {
        padding: 20px 16px 18px;
        font-size: 0.72rem;
    }
    .f12-ascii {
        font-size: 0.42rem;
        line-height: 1.2;
    }
    .f12-tagline {
        font-size: 0.64rem;
    }
    .f12-cmd-link {
        gap: 10px;
    }
    .f12-cc {
        min-width: 60px;
        font-size: 0.72rem;
    }
    .f12-cd {
        font-size: 0.7rem;
    }
    .f12-si-row {
        flex-direction: column;
        gap: 2px;
    }
    .f12-si-key {
        min-width: unset;
    }
    .f12-cta-line {
        gap: 4px;
    }
    .f12-cta-hint {
        display: block;
        margin-left: 0;
    }
}

/* ---- 响应式补充 ---- */
@media (max-width: 1024px) {
    .team-grid {
        grid-template-columns: 1fr 1fr;
    }
    .blog-grid {
        grid-template-columns: 1fr 1fr;
    }
    .footer-inner {
        padding: 40px 36px 28px;
    }
    .footer-poem {
        padding: 0 0 32px;
    }
    .poem-couplet-main p {
        font-size: 1.2rem;
    }
    .poem-couplet-lead p {
        font-size: 0.95rem;
    }
    .poem-couplet {
        padding: 0 18px;
    }
    .footer-info {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
        padding: 28px 0;
    }
    .footer-brand-block {
        grid-column: 1 / -1;
    }
    .case-modal-content {
        padding: 36px 28px;
    }
}
@media (max-width: 600px) {
    .team-grid {
        grid-template-columns: 1fr 1fr;
    }
    .blog-grid {
        grid-template-columns: 1fr;
    }
    .footer-inner {
        padding: 32px 22px 26px;
    }
    .footer-poem {
        padding: 0 0 28px;
    }
    .poem-header {
        gap: 14px;
        margin-bottom: 20px;
    }
    .poem-seal {
        font-size: 0.66rem;
        padding: 4px 8px;
    }
    .poem-rule {
        width: 32px;
    }
    .poem-couplets {
        grid-template-columns: 1fr;
        gap: 18px;
        margin-bottom: 20px;
    }
    .poem-couplets::before {
        display: none;
    }
    .poem-couplet-lead,
    .poem-couplet-main {
        grid-column: 1;
        grid-row: auto;
        padding: 0;
    }
    .poem-couplet-main p {
        font-size: 1.15rem;
        letter-spacing: 2px;
    }
    .poem-couplet-lead p {
        font-size: 0.88rem;
        letter-spacing: 2px;
    }
    .poem-note {
        font-size: 0.8rem;
    }
    .footer-info {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
        padding: 24px 0;
    }
    .footer-brand-block {
        grid-column: 1 / -1;
    }
    .stat {
        padding: 0 10px;
    }
    .stat strong {
        font-size: 1.05rem;
    }
    .footer-bottom {
        padding-top: 18px;
        flex-direction: column;
        align-items: flex-start;
    }
    .footer-bottom-right {
        width: 100%;
        justify-content: space-between;
    }
    .contact-form .form-row {
        flex-direction: column;
        gap: 0;
    }
    .contact-form .form-row input,
    .contact-form .form-row select {
        margin-bottom: 16px;
    }
    .case-filters {
        gap: 8px;
    }
    .case-filters .filter-btn {
        padding: 6px 16px;
        font-size: 0.7rem;
    }
    .case-modal-content {
        padding: 28px 20px;
    }
    .case-modal .modal-title {
        font-size: 1.5rem;
    }
}

/* ================================================================
   封面图 / 缩略图（模板占位图，后台可传真实图覆盖）
   ================================================================ */
/* 首页案例卡片封面（负边距贴边出血） */
.cases-grid .card .case-cover {
    margin: -34px -32px 24px -32px;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border-radius: 18px 18px 0 0;
    background: var(--bg-soft, #f4f2ef);
}
.cases-grid .card .case-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.cases-grid .card:hover .case-cover img { transform: scale(1.04); }
.cases-grid .card .case-cover-fallback { width: 100%; height: 100%; }
/* 补全首页案例卡片未样式化的字段，使其与子页一致 */
.cases-grid .card .metric {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 20px;
    background: rgba(184, 74, 58, 0.06);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: 10px;
}
.cases-grid .card .period {
    font-size: 0.8rem;
    color: var(--text-light);
    opacity: 0.6;
    margin-bottom: 14px;
}
.cases-grid .card .view-detail-btn {
    background: transparent;
    border: none;
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0;
    font-family: inherit;
}
.cases-grid .card .view-detail-btn i { font-size: 0.7rem; transition: transform 0.3s; }
.cases-grid .card .view-detail-btn:hover i { transform: translateX(4px); }

/* 首页资讯卡片缩略图 */
.blog-grid .post .post-thumb {
    margin: -30px -28px 22px -28px;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border-radius: 18px 18px 0 0;
    background: var(--bg-soft, #f4f2ef);
}
.blog-grid .post .post-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.blog-grid .post:hover .post-thumb img { transform: scale(1.04); }
.blog-grid .post .post-thumb:empty { display: none; }

/* 洞察卡片：阅读全文 */
.blog-grid .post .post-more {
    margin-top: auto;
    padding-top: 18px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--accent);
    transition: gap 0.25s ease;
}
.blog-grid .post:hover .post-more { gap: 12px; }
.blog-grid .post .post-more i { font-size: 0.78rem; }

/* 板块「查看全部」按钮 */
.section-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: -32px 0 30px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--accent);
    text-decoration: none;
    transition: gap 0.25s ease, opacity 0.25s ease;
}
.section-more:hover { gap: 12px; opacity: 0.75; }
.section-more i { font-size: 0.82rem; }

/* 案例弹窗封面 */
.case-modal .modal-cover {
    margin: -48px -44px 28px -44px;
    aspect-ratio: 21 / 9;
    overflow: hidden;
    border-radius: 24px 24px 0 0;
    background: var(--bg-soft, #f4f2ef);
}
.case-modal .modal-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 头像：后台可传 avatar 图片，缺省回退首字母 */
.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}