/* ==================================================
   HANHOME FAMILY OFFICE · 高端视觉体系
   色彩：深邃炭黑 + 典雅金色 + 素白
   ================================================== */

:root {
    --color-black: #0a0a0b;
    --color-ink: #111114;
    --color-charcoal: #1a1a1e;
    --color-graphite: #2a2a2f;
    --color-white: #f6f3ee;
    --color-cream: #ede7dc;
    --color-sand: #c9bfa9;

    --color-gold: #c9a961;
    --color-gold-light: #d8be85;
    --color-gold-deep: #8b7033;
    --color-gold-muted: #a08b57;

    --font-serif-cn: 'Noto Serif SC', 'Songti SC', serif;
    --font-serif-en: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Inter', 'PingFang SC', -apple-system, BlinkMacSystemFont, sans-serif;

    --ease-smooth: cubic-bezier(0.22, 0.61, 0.36, 1);
    --ease-elegant: cubic-bezier(0.65, 0, 0.35, 1);

    --section-pad: clamp(80px, 10vw, 140px);
    --container-max: 1280px;
    --radius-sm: 4px;
    --radius-md: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background: var(--color-white);
    color: var(--color-ink);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 48px);
}

/* ==================================================
   导航栏
   ================================================== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 22px 0;
    transition: background 0.5s var(--ease-smooth), padding 0.4s var(--ease-smooth), backdrop-filter 0.4s ease;
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 10, 11, 0.82);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    padding: 14px 0;
    border-bottom: 1px solid rgba(201, 169, 97, 0.18);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 48px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-gold);
    transition: transform 0.4s var(--ease-elegant);
}

.nav-logo:hover { transform: translateY(-1px); }

.logo-mark {
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
}

.logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.logo-text { display: flex; flex-direction: column; line-height: 1.1; }

.logo-cn {
    font-family: var(--font-serif-cn);
    font-size: 17px;
    font-weight: 600;
    color: var(--color-white);
    letter-spacing: 2px;
}

.logo-en {
    font-family: var(--font-serif-en);
    font-size: 11px;
    color: var(--color-gold);
    letter-spacing: 4px;
    margin-top: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 6px;
    align-items: center;
}

.nav-link {
    display: inline-block;
    padding: 10px 18px;
    font-size: 13.5px;
    font-weight: 400;
    color: rgba(246, 243, 238, 0.8);
    position: relative;
    transition: color 0.3s var(--ease-smooth);
    letter-spacing: 1px;
    font-family: var(--font-serif-en);
    text-transform: uppercase;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px; left: 18px; right: 18px;
    height: 1px;
    background: var(--color-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.45s var(--ease-smooth);
}

.nav-link:hover { color: var(--color-white); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--color-gold-light); }

.nav-cta {
    padding: 10px 24px;
    background: transparent;
    color: var(--color-white);
    border: 1px solid rgba(246, 243, 238, 0.35);
    font-family: var(--font-serif-en);
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 3px;
    cursor: pointer;
    border-radius: 0;
    transition: all 0.35s var(--ease-smooth);
    white-space: nowrap;
    text-transform: uppercase;
}

.nav-cta:hover {
    background: var(--color-gold);
    color: #1a1714;
    border-color: var(--color-gold);
    box-shadow: 0 8px 24px -8px rgba(201, 169, 97, 0.4);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    width: 32px; height: 32px;
    cursor: pointer;
    padding: 6px;
    flex-direction: column;
    gap: 5px;
    justify-content: center;
}

.nav-toggle span {
    display: block;
    height: 1.5px;
    background: var(--color-white);
    border-radius: 2px;
    transition: all 0.3s var(--ease-smooth);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); background: var(--color-gold); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); background: var(--color-gold); }

/* ==================================================
   Hero 首屏 · Blue Haven 编辑杂志风格
   ================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    overflow: hidden;
    color: var(--color-white);
    background: #1a1714;
}

.hero-bg {
    position: absolute; inset: 0;
    background-image:
        /* 主图：从黎明视角俯瞰城市天际线/建筑，体现财富与传承的高级感 */
        url("https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=2400&q=80"),
        /* 备用叠加：柔和暖调光影 */
        linear-gradient(135deg, #2a241d 0%, #3d3427 40%, #1f1b16 100%);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transform: scale(1.06);
    transition: transform 1.8s var(--ease-elegant);
}

.hero:hover .hero-bg { transform: scale(1.1); }

.hero-overlay {
    position: absolute; inset: 0;
    /* 纯黑色 50% 蒙板，覆盖整个背景区域；pointer-events: none 确保不阻挡交互 */
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
    pointer-events: none;
}

.hero-overlay::after {
    content: '';
    position: absolute; inset: 0;
    /* 金色微光氛围，叠加在 50% 黑蒙板之上，保留高端感 */
    background: radial-gradient(ellipse 70% 50% at 20% 70%, rgba(201, 169, 97, 0.12), transparent 65%);
    pointer-events: none;
}

.hero-grain {
    position: absolute; inset: 0;
    background-image:
        repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.02) 0 1px, transparent 1px 3px),
        repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.015) 0 1px, transparent 1px 4px);
    pointer-events: none;
    opacity: 0.35;
    mix-blend-mode: overlay;
}

.hero-frame-left,
.hero-frame-right {
    position: absolute;
    top: 0; bottom: 0;
    width: 1px;
    background: linear-gradient(180deg,
        transparent 0%,
        rgba(201, 169, 97, 0.35) 50%,
        transparent 100%);
    pointer-events: none;
    z-index: 2;
}
.hero-frame-left { left: 5%; }
.hero-frame-right { right: 5%; }

.hero-corner {
    position: absolute;
    width: 28px; height: 28px;
    border: 1px solid rgba(201, 169, 97, 0.45);
    z-index: 2;
    pointer-events: none;
}
.corner-tl { top: 36px; left: 36px; border-right: none; border-bottom: none; }
.corner-tr { top: 36px; right: 36px; border-left: none; border-bottom: none; }
.corner-bl { bottom: 36px; left: 36px; border-right: none; border-top: none; }
.corner-br { bottom: 36px; right: 36px; border-left: none; border-top: none; }

.hero-content {
    position: relative;
    z-index: 3;
    text-align: left;
    padding: 0 clamp(24px, 6vw, 80px) 14vh;
    max-width: 1240px;
    width: 100%;
}

.hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 36px;
    font-family: var(--font-serif-en);
    font-size: 18px;
    letter-spacing: 5px;
    color: var(--color-gold);
    text-transform: uppercase;
}

.kicker-bar {
    width: 52px;
    height: 1px;
    background: var(--color-gold);
    position: relative;
}

.kicker-bar::after {
    content: '';
    position: absolute;
    right: -6px; top: 50%;
    width: 4px; height: 4px;
    background: var(--color-gold);
    border-radius: 50%;
    transform: translateY(-50%);
}

.hero-title {
    font-family: var(--font-serif-cn);
    font-size: clamp(32px, 4.8vw, 58px);
    font-weight: 500;
    line-height: 1.25;
    letter-spacing: 4px;
    margin-bottom: 28px;
    color: var(--color-white);
    max-width: 16ch;
}

.title-line {
    display: block;
    /* 恢复原始金色渐变：白色 → 金色，垂直方向 180° */
    background: linear-gradient(180deg, #f6f3ee 0%, #c9a961 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.hero-subtitle {
    font-family: var(--font-serif-cn);
    font-size: clamp(15px, 1.4vw, 17px);
    font-weight: 300;
    line-height: 1.9;
    color: rgba(246, 243, 238, 0.82);
    letter-spacing: 1px;
    margin-bottom: 48px;
    max-width: 56ch;
}

.hero-ctas {
    display: flex;
    gap: 16px;
    margin-bottom: 80px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 40px;
    font-family: var(--font-serif-cn);
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 3px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: none;
    transition: all 0.4s var(--ease-elegant);
    position: relative;
    overflow: hidden;
    min-width: 160px;
}

.btn-primary {
    background: var(--color-gold);
    color: var(--color-black);
    box-shadow: 0 8px 28px -10px rgba(201, 169, 97, 0.6);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, 0.35) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.8s var(--ease-elegant);
}

.btn-primary:hover {
    background: var(--color-gold-light);
    transform: translateY(-2px);
    box-shadow: 0 18px 40px -12px rgba(201, 169, 97, 0.7);
}

.btn-primary:hover::before { transform: translateX(100%); }

.btn-ghost {
    background: transparent;
    color: var(--color-white);
    border: 1px solid rgba(246, 243, 238, 0.4);
}

.btn-ghost:hover {
    border-color: var(--color-gold);
    color: var(--color-gold-light);
    transform: translateY(-2px);
}

.btn-block { width: 100%; }

.hero-meta {
    display: flex;
    align-items: stretch;
    gap: 0;
    flex-wrap: wrap;
    justify-content: flex-start;
    border-top: 1px solid rgba(246, 243, 238, 0.18);
    padding-top: 32px;
    max-width: 860px;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
    text-align: left;
    padding: 0 40px 0 0;
    flex: 1;
    min-width: 160px;
}

.meta-item:first-child { padding-left: 0; }

.meta-value {
    font-family: var(--font-serif-cn);
    font-size: 17px;
    font-weight: 500;
    letter-spacing: 1px;
    color: var(--color-white);
    line-height: 1.3;
}

.meta-label {
    font-family: var(--font-serif-en);
    font-size: 10.5px;
    letter-spacing: 3px;
    color: var(--color-gold);
    text-transform: uppercase;
    opacity: 0.9;
}

.meta-divider {
    width: 1px;
    background: rgba(246, 243, 238, 0.15);
    margin: 0 24px;
}

.hero-scroll {
    position: absolute;
    bottom: 36px;
    right: 48px;
    left: auto;
    transform: none;
    display: flex;
    align-items: center;
    gap: 14px;
    color: rgba(246, 243, 238, 0.6);
    font-family: var(--font-serif-cn);
    font-size: 12px;
    letter-spacing: 3px;
    z-index: 3;
}

.scroll-text {
    font-family: var(--font-serif-cn);
    font-size: 12px;
    letter-spacing: 4px;
    color: rgba(246, 243, 238, 0.6);
}

.scroll-icon {
    width: 22px; height: 34px;
    border: 1px solid rgba(246, 243, 238, 0.35);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
    color: var(--color-gold);
    position: relative;
}

.scroll-icon svg circle {
    animation: scrollDot 2.2s var(--ease-smooth) infinite;
}

@keyframes scrollDot {
    0% { transform: translateY(-2px); opacity: 1; }
    100% { transform: translateY(10px); opacity: 0; }
}

/* ==================================================
   通用 Section 样式
   ================================================== */
.section {
    padding: var(--section-pad) 0;
    position: relative;
}

.section-header {
    max-width: 720px;
    margin-bottom: 64px;
}

.section-header.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.section-eyebrow {
    display: inline-block;
    font-family: var(--font-serif-en);
    font-size: 20px;
    letter-spacing: 6px;
    color: var(--color-gold);
    margin-bottom: 20px;
    padding-left: 32px;
    position: relative;
}

.section-eyebrow::before {
    content: '';
    position: absolute;
    left: 0; top: 50%;
    width: 22px; height: 1px;
    background: var(--color-gold);
    transform: translateY(-50%);
}

.section-eyebrow.light { color: var(--color-gold-light); }
.section-eyebrow.light::before { background: var(--color-gold-light); }

.section-title {
    font-family: var(--font-serif-cn);
    font-size: clamp(32px, 4.5vw, 52px);
    font-weight: 500;
    line-height: 1.25;
    color: var(--color-ink);
    letter-spacing: 2px;
    margin-bottom: 24px;
}

.section-title.light { color: var(--color-white); }

.title-accent {
    color: var(--color-gold-deep);
    font-weight: 400;
}

.section-title.light .title-accent {
    color: var(--color-gold-light);
}

.section-lead {
    font-family: var(--font-serif-cn);
    font-size: 16px;
    line-height: 1.9;
    color: var(--color-graphite);
    letter-spacing: 0.5px;
}

.light-text { color: rgba(246, 243, 238, 0.75) !important; }

/* ==================================================
   About · 关于我们 · 与首页一致的黑金风格
   ================================================== */
.section-about {
    background: #1a1714;
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.section-about::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
    z-index: 2;
}

/* 添加金色装饰性背景纹理，呼应首页的温暖气质 */
.section-about::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 85% 15%, rgba(201, 169, 97, 0.08), transparent 60%),
        radial-gradient(ellipse 60% 50% at 10% 85%, rgba(201, 169, 97, 0.06), transparent 60%);
    pointer-events: none;
    z-index: 0;
}

.section-about .container { position: relative; z-index: 1; }

/* 关于我们标题改为深色版 */
.section-about .section-eyebrow { color: var(--color-gold); }
.section-about .section-eyebrow::before { background: var(--color-gold); }
.section-about .section-title { color: var(--color-white); }
.section-about .section-title .title-accent { color: var(--color-gold-light); }
.section-about .section-lead { color: rgba(246, 243, 238, 0.75); }

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.feature-card {
    position: relative;
    padding: 52px 40px 48px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(201, 169, 97, 0.25);
    border-radius: var(--radius-md);
    transition: all 0.5s var(--ease-elegant);
    overflow: hidden;
    z-index: 1;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
    transform: scaleX(0);
    transition: transform 0.7s var(--ease-elegant);
}

.feature-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(201, 169, 97, 0.06) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.5s var(--ease-smooth);
    pointer-events: none;
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: var(--color-gold);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 32px 64px -24px rgba(0, 0, 0, 0.5);
}

.feature-card:hover::before { transform: scaleX(1); }
.feature-card:hover::after { opacity: 1; }

.feature-icon {
    width: 56px; height: 56px;
    display: flex; align-items: center; justify-content: center;
    color: var(--color-gold);
    margin-bottom: 28px;
    padding: 10px;
    border: 1px solid rgba(201, 169, 97, 0.4);
    border-radius: var(--radius-sm);
    transition: all 0.5s var(--ease-elegant);
    background: rgba(201, 169, 97, 0.05);
}

.feature-card:hover .feature-icon {
    background: var(--color-gold);
    color: #1a1714;
    border-color: var(--color-gold);
    transform: rotate(-4deg) scale(1.05);
}

.feature-title {
    font-family: var(--font-serif-cn);
    font-size: 22px;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.feature-desc {
    font-family: var(--font-serif-cn);
    font-size: 15px;
    line-height: 1.9;
    color: rgba(246, 243, 238, 0.72);
}

.feature-num {
    position: absolute;
    bottom: 24px;
    right: 32px;
    font-family: var(--font-serif-en);
    font-size: 48px;
    font-weight: 400;
    color: rgba(201, 169, 97, 0.2);
    line-height: 1;
    transition: all 0.6s var(--ease-elegant);
}

.feature-card:hover .feature-num {
    color: var(--color-gold);
    transform: translateY(-4px);
}

/* ==================================================
   Vision · 愿景使命
   ================================================== */
.section-vision {
    background: var(--color-ink);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.vision-bg-texture {
    position: absolute; inset: 0;
    background-image:
        radial-gradient(circle at 10% 20%, rgba(201, 169, 97, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(201, 169, 97, 0.06) 0%, transparent 40%),
        repeating-linear-gradient(45deg, transparent 0 12px, rgba(201, 169, 97, 0.015) 12px 13px);
    pointer-events: none;
}

.section-vision .container { position: relative; z-index: 1; }

.vision-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: stretch;
}

.vision-card {
    padding: 56px 48px;
    background: rgba(26, 26, 30, 0.6);
    border: 1px solid rgba(201, 169, 97, 0.2);
    border-radius: var(--radius-md);
    transition: all 0.6s var(--ease-elegant);
    position: relative;
    overflow: hidden;
}

.vision-card::after {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 120px; height: 120px;
    background: radial-gradient(circle, rgba(201, 169, 97, 0.1), transparent 70%);
    opacity: 0;
    transition: opacity 0.6s var(--ease-smooth);
}

.vision-card:hover {
    border-color: var(--color-gold);
    background: rgba(26, 26, 30, 0.85);
    transform: translateY(-4px);
    box-shadow: 0 40px 80px -32px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(201, 169, 97, 0.1);
}

.vision-card:hover::after { opacity: 1; }

.vision-icon {
    width: 60px; height: 60px;
    color: var(--color-gold);
    margin-bottom: 28px;
    padding: 10px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid rgba(201, 169, 97, 0.3);
    border-radius: var(--radius-sm);
}

.vision-title {
    font-family: var(--font-serif-en);
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 8px;
    color: var(--color-gold);
    margin-bottom: 14px;
    text-transform: uppercase;
}

.vision-headline {
    font-family: var(--font-serif-cn);
    font-size: 28px;
    font-weight: 500;
    color: var(--color-white);
    margin-bottom: 24px;
    padding-bottom: 20px;
    letter-spacing: 2px;
    border-bottom: 1px solid rgba(201, 169, 97, 0.3);
    position: relative;
}

.vision-headline::after {
    content: '';
    position: absolute;
    bottom: -1px; left: 0;
    width: 60px; height: 2px;
    background: var(--color-gold);
    transition: width 0.6s var(--ease-smooth);
}

.vision-card:hover .vision-headline::after { width: 100%; }

.vision-text {
    font-family: var(--font-serif-cn);
    font-size: 15px;
    line-height: 2;
    color: rgba(246, 243, 238, 0.75);
    margin-bottom: 14px;
}

.vision-text:last-child { margin-bottom: 0; }

.vision-divider {
    width: 1px;
    background: linear-gradient(180deg, transparent, rgba(201, 169, 97, 0.3), transparent);
    position: relative;
}

.vision-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px; height: 10px;
    background: var(--color-gold);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--color-gold);
    opacity: 0.5;
}

/* ==================================================
   Strength · 实力见证
   ================================================== */
.section-strength {
    background: var(--color-cream);
}

.strength-layout {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 64px;
    align-items: start;
}

.timeline {
    position: relative;
    padding-left: 36px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 8px; bottom: 8px;
    width: 1px;
    background: linear-gradient(180deg, var(--color-gold) 0%, rgba(201, 169, 97, 0.2) 100%);
}

.timeline-item {
    position: relative;
    padding: 8px 0 36px 24px;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
    position: absolute;
    left: -30px; top: 14px;
    width: 14px; height: 14px;
    border-radius: 50%;
    background: var(--color-cream);
    border: 2px solid var(--color-gold);
    transition: all 0.4s var(--ease-smooth);
}

.timeline-dot.gold {
    background: var(--color-gold);
    box-shadow: 0 0 0 4px rgba(201, 169, 97, 0.2), 0 0 20px var(--color-gold);
    animation: goldPulse 2.4s var(--ease-elegant) infinite;
}

@keyframes goldPulse {
    0%, 100% { box-shadow: 0 0 0 4px rgba(201, 169, 97, 0.2), 0 0 20px var(--color-gold); }
    50% { box-shadow: 0 0 0 8px rgba(201, 169, 97, 0.1), 0 0 30px var(--color-gold-light); }
}

.timeline-item:hover .timeline-dot:not(.gold) {
    background: var(--color-gold);
    transform: scale(1.2);
}

.timeline-date {
    display: inline-block;
    font-family: var(--font-serif-en);
    font-size: 20px;
    letter-spacing: 4px;
    color: var(--color-gold-deep);
    margin-bottom: 8px;
}

.gold-text { color: var(--color-gold); font-weight: 600; }

.timeline-title {
    font-family: var(--font-serif-cn);
    font-size: 20px;
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.timeline-desc {
    font-family: var(--font-serif-cn);
    font-size: 14.5px;
    line-height: 1.9;
    color: #4a4a4f;
}

.timeline-item.highlight {
    background: linear-gradient(90deg, rgba(201, 169, 97, 0.15), transparent);
    padding: 20px 20px 24px 24px;
    border-radius: var(--radius-sm);
    margin-left: -10px;
}

.stats-panel {
    background: var(--color-ink);
    color: var(--color-white);
    padding: 56px 48px;
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
}

.stats-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at top right, rgba(201, 169, 97, 0.12), transparent 60%),
        linear-gradient(135deg, transparent 0%, rgba(201, 169, 97, 0.05) 100%);
    pointer-events: none;
}

.stats-panel > * { position: relative; }

.stats-intro {
    font-family: var(--font-serif-cn);
    font-size: 15px;
    line-height: 1.9;
    color: rgba(246, 243, 238, 0.75);
    margin-bottom: 40px;
    padding-bottom: 28px;
    border-bottom: 1px solid rgba(201, 169, 97, 0.25);
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px 32px;
    margin-bottom: 40px;
}

.stat-item {
    text-align: center;
    padding: 20px 12px;
    border: 1px solid rgba(201, 169, 97, 0.15);
    border-radius: var(--radius-sm);
    transition: all 0.5s var(--ease-elegant);
}

.stat-item:hover {
    background: rgba(201, 169, 97, 0.08);
    border-color: var(--color-gold);
    transform: translateY(-3px);
}

.stat-value {
    font-family: var(--font-serif-en);
    font-size: 52px;
    font-weight: 500;
    line-height: 1;
    color: var(--color-gold-light);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.stat-unit {
    font-family: var(--font-serif-cn);
    font-size: 20px;
    color: var(--color-gold);
    margin-left: 4px;
}

.stat-label {
    font-family: var(--font-serif-cn);
    font-size: 15px;
    letter-spacing: 2px;
    color: rgba(246, 243, 238, 0.8);
}

.stats-footnote {
    font-family: var(--font-serif-cn);
    font-size: 13.5px;
    line-height: 1.8;
    color: rgba(246, 243, 238, 0.55);
    font-style: italic;
    padding-top: 24px;
    border-top: 1px solid rgba(201, 169, 97, 0.15);
}

/* ==================================================
   Team · 专业团队
   ================================================== */
.section-team { background: var(--color-white); }

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.team-card {
    position: relative;
    padding: 56px 36px 44px;
    border: 1px solid rgba(201, 169, 97, 0.22);
    border-radius: var(--radius-md);
    background: linear-gradient(180deg, #fff 0%, #faf8f3 100%);
    transition: all 0.55s var(--ease-elegant);
    overflow: hidden;
}

.team-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gold-deep), var(--color-gold), var(--color-gold-deep));
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.7s var(--ease-elegant);
}

.team-card:hover {
    transform: translateY(-6px);
    border-color: var(--color-gold);
    box-shadow: 0 32px 64px -24px rgba(139, 112, 51, 0.3);
}

.team-card:hover::before { transform: scaleX(1); }

.team-badge {
    width: 64px; height: 64px;
    display: flex; align-items: center; justify-content: center;
    color: var(--color-gold);
    margin-bottom: 24px;
    padding: 8px;
    border: 1px solid rgba(201, 169, 97, 0.35);
    border-radius: var(--radius-sm);
    background: rgba(201, 169, 97, 0.04);
    transition: all 0.5s var(--ease-elegant);
}

.team-card:hover .team-badge {
    background: var(--color-gold);
    color: var(--color-black);
    border-color: var(--color-gold);
    transform: rotate(6deg);
}

.team-index {
    position: absolute;
    top: 36px;
    right: 36px;
    font-family: var(--font-serif-en);
    font-size: 14px;
    letter-spacing: 3px;
    color: var(--color-gold-muted);
}

.team-title {
    font-family: var(--font-serif-cn);
    font-size: 22px;
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: 18px;
    letter-spacing: 1px;
}

.team-desc {
    font-family: var(--font-serif-cn);
    font-size: 15px;
    line-height: 1.9;
    color: #4a4a4f;
    margin-bottom: 20px;
}

.alumni-list {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    padding-top: 20px;
    border-top: 1px solid rgba(201, 169, 97, 0.2);
}

.alumni-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: rgba(201, 169, 97, 0.1);
    border: 1px solid rgba(201, 169, 97, 0.25);
    border-radius: 2px;
    transition: all 0.3s var(--ease-smooth);
    flex: 1;
    min-width: 120px;
}

.alumni-item span {
    font-family: var(--font-serif-cn);
    font-size: 13px;
    color: var(--color-gold-deep);
    letter-spacing: 1px;
    order: 1;
}

.alumni-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    order: 2;
}

.alumni-item:hover {
    background: var(--color-gold);
    border-color: var(--color-gold);
}

.alumni-item:hover span {
    color: var(--color-black);
}

/* ==================================================
   Contact · 联系我们
   ================================================== */
.section-contact {
    background: var(--color-ink);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
    padding: var(--section-pad) 0;
}

.contact-bg {
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse at 15% 50%, rgba(201, 169, 97, 0.1) 0%, transparent 55%),
        radial-gradient(ellipse at 85% 50%, rgba(201, 169, 97, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.contact-container {
    position: relative;
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 80px;
    align-items: center;
}

.contact-left { max-width: 520px; }

.contact-lead {
    font-family: var(--font-serif-cn);
    font-size: 16px;
    line-height: 1.95;
    color: var(--color-graphite);
    margin-bottom: 44px;
}

.contact-info {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-info li {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 18px 22px;
    background: rgba(246, 243, 238, 0.03);
    border: 1px solid rgba(201, 169, 97, 0.15);
    border-radius: var(--radius-sm);
    transition: all 0.4s var(--ease-elegant);
}

.contact-info li:hover {
    background: rgba(201, 169, 97, 0.08);
    border-color: var(--color-gold);
    transform: translateX(4px);
}

.info-icon {
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    color: var(--color-gold);
    flex-shrink: 0;
}

.contact-info li div {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-label {
    font-family: var(--font-serif-en);
    font-size: 11px;
    letter-spacing: 4px;
    color: var(--color-gold);
    text-transform: uppercase;
}

.info-text {
    font-family: var(--font-serif-cn);
    font-size: 15px;
    color: var(--color-white);
    letter-spacing: 1px;
}

.contact-form {
    padding: 48px 44px;
    background: rgba(246, 243, 238, 0.04);
    border: 1px solid rgba(201, 169, 97, 0.25);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.form-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(201, 169, 97, 0.2);
}

.form-header h3 {
    font-family: var(--font-serif-cn);
    font-size: 24px;
    font-weight: 500;
    color: var(--color-white);
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.form-header p {
    font-family: var(--font-serif-cn);
    font-size: 14px;
    color: rgba(246, 243, 238, 0.6);
}

.contact-form label {
    display: block;
    margin-bottom: 20px;
}

.contact-form label span {
    display: block;
    font-family: var(--font-serif-cn);
    font-size: 13px;
    letter-spacing: 2px;
    color: var(--color-gold);
    margin-bottom: 10px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 14px 16px;
    background: rgba(10, 10, 11, 0.6);
    border: 1px solid rgba(201, 169, 97, 0.25);
    border-radius: var(--radius-sm);
    color: var(--color-white);
    font-family: var(--font-serif-cn);
    font-size: 15px;
    transition: all 0.35s var(--ease-smooth);
    resize: vertical;
    outline: none;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: rgba(246, 243, 238, 0.35);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--color-gold);
    background: rgba(10, 10, 11, 0.85);
    box-shadow: 0 0 0 3px rgba(201, 169, 97, 0.12);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

/* ==================================================
   Footer · 页脚
   ================================================== */
.footer {
    background: var(--color-black);
    color: var(--color-white);
    padding: 80px 0 0;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 64px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
    color: var(--color-gold);
}

.footer-logo-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    display: block;
    flex-shrink: 0;
}

.footer-logo div {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.footer-cn {
    font-family: var(--font-serif-cn);
    font-size: 18px;
    font-weight: 600;
    color: var(--color-white);
    letter-spacing: 2px;
}

.footer-en {
    font-family: var(--font-serif-en);
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--color-gold);
    margin-top: 2px;
}

.footer-desc {
    font-family: var(--font-serif-cn);
    font-size: 14px;
    line-height: 1.9;
    color: rgba(246, 243, 238, 0.55);
    max-width: 340px;
}

.footer-col h4 {
    font-family: var(--font-serif-cn);
    font-size: 15px;
    font-weight: 600;
    color: var(--color-gold-light);
    margin-bottom: 22px;
    letter-spacing: 2px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(201, 169, 97, 0.2);
}

.footer-col a {
    display: block;
    font-family: var(--font-serif-cn);
    font-size: 14px;
    color: rgba(246, 243, 238, 0.65);
    padding: 7px 0;
    transition: all 0.3s var(--ease-smooth);
    letter-spacing: 1px;
}

.footer-col a:hover {
    color: var(--color-gold-light);
    padding-left: 8px;
}

.footer-bottom {
    border-top: 1px solid rgba(201, 169, 97, 0.12);
    padding: 24px 0;
}

.footer-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-bottom-inner span {
    font-family: var(--font-serif-en);
    font-size: 12px;
    letter-spacing: 2px;
    color: rgba(246, 243, 238, 0.4);
}

/* ==================================================
   滚动动画 Reveal
   ================================================== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.9s var(--ease-elegant), transform 0.9s var(--ease-elegant);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.hero .reveal { opacity: 1; transform: none; }

.hero-kicker.reveal { animation: revealUp 0.9s var(--ease-elegant) 0.3s both; }
.hero-title.reveal { animation: revealUp 1.1s var(--ease-elegant) 0.5s both; }
.hero-subtitle.reveal { animation: revealUp 1s var(--ease-elegant) 0.7s both; }
.hero-ctas.reveal { animation: revealUp 1s var(--ease-elegant) 0.9s both; }
.hero-meta.reveal { animation: revealUp 1.1s var(--ease-elegant) 1.05s both; }

@keyframes revealUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==================================================
   响应式布局
   ================================================== */
@media (max-width: 1100px) {
    .features-grid,
    .team-grid { grid-template-columns: repeat(2, 1fr); }
    .vision-grid { grid-template-columns: 1fr; gap: 28px; }
    .vision-divider { display: none; }
    .strength-layout { grid-template-columns: 1fr; gap: 48px; }
    .contact-container { grid-template-columns: 1fr; gap: 48px; }
    .footer-inner { grid-template-columns: 1.5fr 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }

    /* Hero 平板微调 */
    .hero-frame-left,
    .hero-frame-right { display: none; }
    .hero-content { max-width: 820px; padding: 0 40px 12vh; }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 64px; left: 0; right: 0;
        flex-direction: column;
        background: rgba(10, 10, 11, 0.96);
        backdrop-filter: blur(18px);
        padding: 24px;
        gap: 4px;
        transform: translateY(-20px);
        opacity: 0;
        pointer-events: none;
        transition: all 0.4s var(--ease-smooth);
        border-bottom: 1px solid rgba(201, 169, 97, 0.2);
    }
    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    .nav-link {
        display: block;
        padding: 14px 16px;
        border-bottom: 1px solid rgba(201, 169, 97, 0.1);
        font-size: 15px;
    }
    .nav-link::after { display: none; }
    .nav-cta { display: none; }
    .nav-toggle { display: flex; }

    .features-grid,
    .team-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr; gap: 20px; }

    /* Hero 手机端 */
    .hero { min-height: 92vh; align-items: flex-end; }
    .hero-bg { background-position: 55% 50%; }
    .hero-corner { display: none; }
    .hero-content {
        padding: 0 22px 10vh;
        text-align: left;
    }
    .hero-kicker { font-size: 16.5px; letter-spacing: 4px; margin-bottom: 22px; }
    .kicker-bar { width: 36px; }
    .hero-title {
        font-size: clamp(28px, 8.5vw, 40px);
        letter-spacing: 2px;
        margin-bottom: 18px;
        max-width: 100%;
    }
    .hero-subtitle {
        font-size: 14px;
        letter-spacing: 0.5px;
        line-height: 1.85;
        margin-bottom: 32px;
        max-width: 100%;
    }
    .hero-ctas { margin-bottom: 48px; }

    .hero-meta {
        gap: 0;
        padding-top: 20px;
        flex-direction: column;
        border-top: 1px solid rgba(246, 243, 238, 0.15);
    }
    .meta-item {
        padding: 12px 0;
        flex-direction: row;
        align-items: baseline;
        justify-content: space-between;
        border-bottom: 1px solid rgba(246, 243, 238, 0.08);
        min-width: auto;
    }
    .meta-item:last-child { border-bottom: none; }
    .meta-divider { display: none; }
    .meta-value { font-size: 15px; }
    .meta-label { font-size: 10px; letter-spacing: 2px; }

    .hero-scroll {
        right: auto;
        left: 50%;
        bottom: 22px;
        transform: translateX(-50%);
        flex-direction: column;
        gap: 8px;
    }
    .scroll-text { font-size: 10px; letter-spacing: 3px; }

    .stat-value { font-size: 40px; }
    .contact-form { padding: 36px 24px; }
    .footer-inner { grid-template-columns: 1fr 1fr; gap: 36px; }
    .section-eyebrow { letter-spacing: 4px; font-size: 16px; }
    .timeline-date { font-size: 16px; }
}

@media (max-width: 480px) {
    .footer-inner { grid-template-columns: 1fr; }
    .btn { padding: 14px 28px; font-size: 14px; min-width: auto; }
    .hero-ctas { flex-direction: column; align-items: stretch; }
    .hero-ctas .btn { width: 100%; }
}

/* 减少动画（无障碍） */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; }
}

/* ==================================================
   Modal · 弹窗
   ================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 12, 18, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s var(--ease-smooth), visibility 0.3s var(--ease-smooth);
    padding: 20px;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: linear-gradient(145deg, #14171f 0%, #0d0f15 100%);
    border: 1px solid rgba(201, 169, 97, 0.3);
    border-radius: 8px;
    padding: 40px 32px;
    max-width: 420px;
    width: 100%;
    text-align: center;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s var(--ease-smooth);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(201, 169, 97, 0.1);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: rgba(201, 169, 97, 0.6);
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.3s var(--ease-smooth);
    line-height: 1;
}

.modal-close:hover {
    color: var(--color-gold);
    background: rgba(201, 169, 97, 0.1);
}

.modal-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(201, 169, 97, 0.15) 0%, rgba(201, 169, 97, 0.05) 100%);
    border: 1px solid rgba(201, 169, 97, 0.3);
    border-radius: 50%;
    color: var(--color-gold);
}

.modal-text {
    font-family: var(--font-serif-cn);
    font-size: 17px;
    color: var(--color-gold);
    line-height: 1.7;
    margin-bottom: 24px;
    letter-spacing: 1px;
}

.modal-qrcode {
    background: #fff;
    padding: 16px;
    border-radius: 8px;
    display: inline-block;
    margin-bottom: 8px;
}

.modal-qrcode img {
    width: 200px;
    height: 200px;
    display: block;
    object-fit: contain;
}

@media (max-width: 768px) {
    .modal-content {
        padding: 32px 24px;
    }
    .modal-icon {
        width: 60px;
        height: 60px;
    }
    .modal-text {
        font-size: 15px;
    }
    .modal-qrcode img {
        width: 180px;
        height: 180px;
    }
}