/* ============================================
   agent.khb.com — 全球GEO代理商平台
   共享样式表 · 继承 KHB VIP 设计语言
   主色：黑(#0a0a10) + 香槟金(#FFB800) + 木兰白 + 桔红(#FF6A3D)
   ============================================ */

:root {
    --bg-primary: #0a0a10;
    --bg-secondary: #12121a;
    --bg-card: #16161f;
    --bg-elevated: #1a1a24;
    --gold-primary: #d4af37;
    --gold-light: #FFB800;
    --gold-dark: #8b6914;
    --orange-primary: #FF6A3D;
    --orange-light: #FF8C5A;
    --orange-dark: #FF4D1F;
    --mulan-white: #f5f3ee;
    --text-primary: #f5f3ee;
    --text-secondary: rgba(245, 243, 238, 0.78);
    --text-muted: rgba(245, 243, 238, 0.55);
    --border-subtle: rgba(212, 175, 55, 0.18);
    --border-gold: rgba(255, 184, 0, 0.32);
    --border-orange: rgba(255, 106, 61, 0.32);
    --shadow-deep: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-gold: 0 8px 36px rgba(255, 184, 0, 0.18);
    --font-display: 'Sora', 'Noto Sans SC', -apple-system, sans-serif;
    --font-body: 'Noto Sans SC', 'Sora', -apple-system, sans-serif;
    --max-width: 1320px;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    font-weight: 300;
    letter-spacing: 0.02em;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

img, canvas, svg {
    max-width: 100%;
    display: block;
}

button {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    font-family: inherit;
}

ul, ol {
    list-style: none;
}

/* ========== 通用容器 ========== */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 768px) {
    .container { padding: 0 1.2rem; }
}

/* ========== 顶部导航 ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 16, 0.75);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-subtle);
    transition: all 0.3s;
}

.nav {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1.1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    font-family: var(--font-display);
    text-decoration: none;
}

.brand img {
    height: 32px;
    width: auto;
    border-radius: 5px;
    display: block;
}

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

.brand-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--mulan-white);
    letter-spacing: 1.5px;
}

.brand-sub {
    font-size: 0.65rem;
    color: var(--gold-light);
    letter-spacing: 2.5px;
    margin-top: 2px;
}

.nav-menu {
    display: flex;
    gap: 2.2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.5px;
    padding: 0.4rem 0;
    position: relative;
}

.nav-menu a:hover {
    color: var(--gold-light);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gold-light);
    transition: width 0.3s;
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 0.6rem 1.4rem;
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold-dark) 100%);
    color: var(--bg-primary) !important;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.82rem;
    letter-spacing: 1px;
    transition: all 0.3s;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-gold);
}

.nav-cta::after { display: none !important; }

.nav-toggle {
    display: none;
    width: 28px;
    height: 28px;
    position: relative;
}

.nav-toggle span {
    position: absolute;
    left: 0;
    right: 0;
    height: 1.5px;
    background: var(--mulan-white);
    transition: all 0.3s;
}

.nav-toggle span:nth-child(1) { top: 8px; }
.nav-toggle span:nth-child(2) { top: 13px; }
.nav-toggle span:nth-child(3) { top: 18px; }

@media (max-width: 900px) {
    .nav { padding: 0.9rem 1.2rem; }
    .nav-menu { display: none; }
    .nav-toggle { display: block; }
    .nav-menu.open {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 10, 16, 0.98);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1.2rem;
        border-bottom: 1px solid var(--border-subtle);
    }
    .mobile-lang.menu-open {
        display: block;
        margin: 0.6rem 1.5rem 0;
        padding: 1.2rem 0 0;
        border-top: 1px solid var(--border-subtle);
    }
}

/* ========== HERO ========== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 8rem 2rem 6rem;
}

.hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(212, 175, 55, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 30%, rgba(255, 106, 61, 0.05) 0%, transparent 40%);
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 1100px;
    margin: 0 auto;
}

.hero-eyebrow {
    display: inline-block;
    padding: 0.45rem 1.2rem;
    border: 1px solid var(--border-gold);
    border-radius: 30px;
    color: var(--gold-light);
    font-size: 0.7rem;
    letter-spacing: 3px;
    margin-bottom: 1.8rem;
    font-weight: 500;
    background: rgba(255, 184, 0, 0.04);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 5.5vw, 4.5rem);
    font-weight: 200;
    line-height: 1.15;
    color: var(--mulan-white);
    margin-bottom: 1.5rem;
    letter-spacing: 0.5px;
}

.hero-title strong {
    font-weight: 600;
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--orange-light) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.hero-title em {
    font-style: normal;
    color: var(--gold-light);
    font-weight: 500;
}

.hero-subtitle {
    font-size: clamp(1rem, 1.6vw, 1.15rem);
    color: var(--text-secondary);
    line-height: 1.85;
    max-width: 780px;
    margin: 0 auto 2.8rem;
    font-weight: 300;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    max-width: 900px;
    margin: 0 auto 3rem;
    background: var(--border-subtle);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    overflow: hidden;
}

.hero-stat {
    background: rgba(10, 10, 16, 0.6);
    padding: 1.6rem 1rem;
    text-align: center;
}

.hero-stat-num {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--gold-light), var(--orange-light));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 1px;
    margin-bottom: 0.3rem;
}

.hero-stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    letter-spacing: 1.2px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.95rem 2rem;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 1.5px;
    border-radius: 4px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold-dark) 100%);
    color: var(--bg-primary);
    box-shadow: 0 4px 20px rgba(255, 184, 0, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(255, 184, 0, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--mulan-white);
    border: 1px solid var(--border-gold);
}

.btn-secondary:hover {
    background: rgba(255, 184, 0, 0.08);
    border-color: var(--gold-light);
}

.btn-orange {
    background: linear-gradient(135deg, var(--orange-primary) 0%, var(--orange-dark) 100%);
    color: var(--mulan-white);
    box-shadow: 0 4px 20px rgba(255, 106, 61, 0.25);
}

.btn-arrow::after {
    content: '→';
    transition: transform 0.3s;
}

.btn-arrow:hover::after {
    transform: translateX(4px);
}

@media (max-width: 768px) {
    .hero { padding: 6.5rem 1.2rem 4rem; min-height: auto; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .hero-stat-num { font-size: 1.5rem; }
    .btn { padding: 0.85rem 1.5rem; font-size: 0.85rem; }
}

/* ========== 通用区块 ========== */
.section {
    padding: 6rem 0;
    position: relative;
}

.section-alt {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    padding: 0.35rem 1rem;
    border: 1px solid var(--border-gold);
    border-radius: 20px;
    color: var(--gold-light);
    font-size: 0.7rem;
    letter-spacing: 2.5px;
    margin-bottom: 1rem;
    font-weight: 500;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 300;
    color: var(--mulan-white);
    line-height: 1.25;
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
}

.section-title strong {
    font-weight: 600;
    background: linear-gradient(135deg, var(--gold-light), var(--orange-light));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 720px;
    margin: 0 auto;
    line-height: 1.85;
}

@media (max-width: 768px) {
    .section { padding: 4rem 0; }
    .section-header { margin-bottom: 2.5rem; }
}

/* ========== 商业模型 / 4列特性 ========== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 2.2rem 1.8rem;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold-light), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

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

.feature-card:hover::before { opacity: 1; }

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    background: linear-gradient(135deg, rgba(255, 184, 0, 0.12), rgba(255, 106, 61, 0.08));
    border: 1px solid var(--border-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold-light);
    font-size: 1.4rem;
    margin-bottom: 1.2rem;
    font-family: var(--font-display);
    font-weight: 700;
}

.feature-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--mulan-white);
    margin-bottom: 0.7rem;
    letter-spacing: 0.5px;
}

.feature-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.75;
}

@media (max-width: 1100px) {
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
    .feature-grid { grid-template-columns: 1fr; gap: 1rem; }
    .feature-card { padding: 1.8rem 1.5rem; }
}

/* ========== GEO 黄金引用段落（AI 引用优化） ========== */
.quote-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}
.quote-card {
    background: linear-gradient(135deg, rgba(255, 184, 0, 0.04) 0%, var(--bg-card) 60%);
    border: 1px solid var(--border-subtle);
    border-left: 3px solid var(--gold);
    border-radius: 8px;
    padding: 2rem 2rem 2rem 2.2rem;
    transition: all 0.4s;
    position: relative;
}
.quote-card:hover {
    transform: translateY(-2px);
    border-color: var(--gold-light);
    box-shadow: 0 8px 32px rgba(255, 184, 0, 0.12);
}
.quote-num {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--gold);
    letter-spacing: 1px;
    margin-bottom: 0.8rem;
    display: inline-block;
    padding: 0.2rem 0.8rem;
    background: rgba(255, 184, 0, 0.08);
    border-radius: 4px;
}
.quote-text {
    font-size: 0.92rem;
    color: var(--text-2);
    line-height: 1.85;
    font-weight: 300;
    margin: 0;
}
@media (max-width: 1100px) {
    .quote-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
    .quote-grid { grid-template-columns: 1fr; }
}

/* ========== 套餐 / 价格卡片 ========== */
.tier-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.tier-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    padding: 2.5rem 2rem;
    position: relative;
    transition: all 0.4s;
    display: flex;
    flex-direction: column;
}

.tier-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: 10px 10px 0 0;
    background: linear-gradient(90deg, var(--gold-light), var(--gold-dark));
    opacity: 0.6;
}

.tier-card.featured {
    background: linear-gradient(165deg, rgba(212, 175, 55, 0.06) 0%, var(--bg-card) 100%);
    border-color: var(--border-gold);
    transform: scale(1.03);
    box-shadow: 0 12px 40px rgba(255, 184, 0, 0.12);
}

.tier-card.featured::before {
    background: linear-gradient(90deg, var(--orange-light), var(--gold-light));
    height: 4px;
    opacity: 1;
}

.tier-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-gold);
}

.tier-card.featured:hover {
    transform: scale(1.03) translateY(-6px);
}

.tier-badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: rgba(255, 184, 0, 0.12);
    color: var(--gold-light);
    border-radius: 4px;
    font-size: 0.7rem;
    letter-spacing: 2px;
    margin-bottom: 1rem;
    font-weight: 600;
    align-self: flex-start;
}

.tier-card.featured .tier-badge {
    background: linear-gradient(135deg, var(--orange-primary), var(--orange-dark));
    color: var(--mulan-white);
}

.tier-name {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--mulan-white);
    margin-bottom: 0.4rem;
    letter-spacing: 0.5px;
}

.tier-tagline {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 1.8rem;
    letter-spacing: 0.5px;
}

.tier-price {
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
    margin-bottom: 0.4rem;
}

.tier-price-currency {
    font-size: 1.1rem;
    color: var(--gold-light);
    font-weight: 500;
}

.tier-price-amount {
    font-family: var(--font-display);
    font-size: 3.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gold-light), var(--orange-light));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
    line-height: 1;
}

.tier-price-unit {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.tier-return {
    font-size: 0.78rem;
    color: var(--orange-light);
    margin-bottom: 1.8rem;
    padding: 0.6rem 0.8rem;
    background: rgba(255, 106, 61, 0.08);
    border-left: 2px solid var(--orange-primary);
    border-radius: 0 4px 4px 0;
    line-height: 1.6;
}

.tier-return strong { color: var(--orange-light); font-weight: 700; }

.tier-features {
    margin-bottom: 2rem;
    flex: 1;
}

.tier-features li {
    padding: 0.5rem 0;
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.65;
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
}

.tier-features li::before {
    content: '◆';
    color: var(--gold-light);
    font-size: 0.55rem;
    margin-top: 0.45rem;
    flex-shrink: 0;
}

.tier-features strong {
    color: var(--mulan-white);
    font-weight: 500;
}

.tier-cta {
    display: block;
    width: 100%;
    padding: 0.95rem;
    text-align: center;
    background: transparent;
    border: 1px solid var(--border-gold);
    color: var(--gold-light);
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.88rem;
    letter-spacing: 1.5px;
    transition: all 0.3s;
}

.tier-cta:hover {
    background: linear-gradient(135deg, var(--gold-light), var(--gold-dark));
    color: var(--bg-primary);
}

.tier-card.featured .tier-cta {
    background: linear-gradient(135deg, var(--gold-light), var(--gold-dark));
    color: var(--bg-primary);
    border-color: transparent;
}

.tier-card.featured .tier-cta:hover {
    background: linear-gradient(135deg, var(--orange-primary), var(--orange-dark));
    color: var(--mulan-white);
}

@media (max-width: 1000px) {
    .tier-grid { grid-template-columns: 1fr; max-width: 500px; }
    .tier-card.featured { transform: none; }
    .tier-card.featured:hover { transform: translateY(-6px); }
    .tier-price-amount { font-size: 2.8rem; }
}

/* ========== 平台能力 / IM.KHB.COM 子站系统 ========== */
.platform-flow {
    display: grid;
    grid-template-columns: 1fr 80px 1fr 80px 1fr;
    align-items: center;
    gap: 1rem;
    max-width: 1100px;
    margin: 3rem auto 0;
}

.flow-step {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 2rem 1.5rem;
    text-align: center;
    position: relative;
    transition: all 0.3s;
}

.flow-step:hover {
    border-color: var(--border-gold);
    transform: translateY(-3px);
}

.flow-step-num {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold-light), var(--gold-dark));
    color: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    font-family: var(--font-display);
}

.flow-step-icon {
    font-size: 2rem;
    color: var(--gold-light);
    margin-bottom: 1rem;
    font-family: var(--font-display);
}

.flow-step-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--mulan-white);
    margin-bottom: 0.5rem;
}

.flow-step-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.65;
}

.flow-arrow {
    text-align: center;
    color: var(--gold-light);
    font-size: 1.5rem;
    font-family: var(--font-display);
}

@media (max-width: 900px) {
    .platform-flow {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    .flow-arrow {
        transform: rotate(90deg);
        padding: 0.5rem 0;
    }
}

/* ========== 数据大屏样式 ========== */
.dashboard-mockup {
    max-width: 1000px;
    margin: 3rem auto 0;
    background: var(--bg-card);
    border: 1px solid var(--border-gold);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.5);
    position: relative;
}

.dashboard-bar {
    display: flex;
    gap: 0.4rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 1.2rem;
}

.dashboard-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
}

.dashboard-dot:nth-child(1) { background: #ff5f57; }
.dashboard-dot:nth-child(2) { background: #ffbd2e; }
.dashboard-dot:nth-child(3) { background: #28c840; }

.dashboard-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
}

.dashboard-block {
    background: rgba(255, 184, 0, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 1.2rem;
}

.dashboard-block-title {
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 1.5px;
    margin-bottom: 0.5rem;
}

.dashboard-block-value {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--gold-light);
    margin-bottom: 0.3rem;
    letter-spacing: 0.5px;
}

.dashboard-block-trend {
    font-size: 0.75rem;
    color: var(--orange-light);
}

.dashboard-bars {
    display: flex;
    align-items: flex-end;
    gap: 0.3rem;
    height: 60px;
    margin-top: 0.5rem;
}

.dashboard-bar-item {
    flex: 1;
    background: linear-gradient(180deg, var(--gold-light), var(--gold-dark));
    border-radius: 2px;
    opacity: 0.7;
    animation: barGrow 1.5s ease-out;
}

@keyframes barGrow {
    from { height: 0 !important; }
}

@media (max-width: 768px) {
    .dashboard-content { grid-template-columns: 1fr; }
}

/* ========== 扶持体系 3列 ========== */
.support-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.support-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 2.2rem 1.8rem;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.support-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--orange-primary), var(--gold-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s;
}

.support-card:hover::after { transform: scaleX(1); }

.support-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-orange);
}

.support-num {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 200;
    background: linear-gradient(135deg, var(--gold-light), var(--orange-light));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.8rem;
    line-height: 1;
}

.support-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--mulan-white);
    margin-bottom: 0.8rem;
    letter-spacing: 0.5px;
}

.support-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 1.2rem;
}

.support-list {
    list-style: none;
    margin-top: 1rem;
}

.support-list li {
    padding: 0.4rem 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.support-list li::before {
    content: '◇';
    color: var(--gold-light);
    margin-top: 0.1rem;
    flex-shrink: 0;
}

@media (max-width: 900px) {
    .support-grid { grid-template-columns: 1fr; max-width: 500px; }
}

/* ========== 路径时间线 ========== */
.timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    padding-left: 2.5rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0.7rem;
    top: 0.5rem;
    bottom: 0.5rem;
    width: 1px;
    background: linear-gradient(180deg, var(--gold-light), var(--orange-primary), var(--gold-dark));
}

.timeline-item {
    position: relative;
    padding-bottom: 2.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.2rem;
    top: 0.4rem;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 2px solid var(--gold-light);
    box-shadow: 0 0 12px rgba(255, 184, 0, 0.4);
}

.timeline-step {
    font-size: 0.72rem;
    color: var(--gold-light);
    letter-spacing: 2px;
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.timeline-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--mulan-white);
    margin-bottom: 0.5rem;
}

.timeline-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.75;
}

/* ========== FAQ ========== */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    margin-bottom: 0.8rem;
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item.active {
    border-color: var(--border-gold);
}

.faq-q {
    padding: 1.3rem 1.6rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    font-family: var(--font-display);
    font-size: 0.98rem;
    font-weight: 500;
    color: var(--mulan-white);
    letter-spacing: 0.3px;
}

.faq-q::after {
    content: '+';
    color: var(--gold-light);
    font-size: 1.4rem;
    font-weight: 300;
    transition: transform 0.3s;
    flex-shrink: 0;
}

.faq-item.active .faq-q::after {
    transform: rotate(45deg);
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.8;
    padding: 0 1.6rem;
}

.faq-item.active .faq-a {
    max-height: 320px;
    padding: 0 1.6rem 1.4rem;
}

/* ========== 申请表单 ========== */
.apply-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    max-width: 1100px;
    margin: 0 auto;
    align-items: start;
}

.apply-card {
    background: var(--bg-card);
    border: 1px solid var(--border-gold);
    border-radius: 10px;
    padding: 2.5rem;
}

.apply-form { display: flex; flex-direction: column; gap: 1.2rem; }

.form-group label {
    display: block;
    font-size: 0.78rem;
    color: var(--text-secondary);
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group label .req { color: var(--orange-primary); margin-left: 2px; }

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    color: var(--mulan-white);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--gold-light);
    background: rgba(255, 184, 0, 0.04);
}

.form-group textarea { resize: vertical; min-height: 100px; }

.form-submit {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--gold-light), var(--gold-dark));
    color: var(--bg-primary);
    border: none;
    border-radius: 4px;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s;
}

.form-submit:hover {
    background: linear-gradient(135deg, var(--orange-primary), var(--orange-dark));
    color: var(--mulan-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 106, 61, 0.3);
}

.apply-side {
    position: sticky;
    top: 100px;
}

.contact-info {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 1.2rem;
}

.contact-info-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gold-light);
    margin-bottom: 1.2rem;
    letter-spacing: 0.5px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    padding: 0.7rem 0;
    font-size: 0.88rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-subtle);
}

.contact-item:last-child { border-bottom: none; }
.contact-item-label { color: var(--text-muted); min-width: 60px; }
.contact-item-value { color: var(--mulan-white); }

.apply-tip {
    background: linear-gradient(135deg, rgba(255, 184, 0, 0.06), rgba(255, 106, 61, 0.04));
    border: 1px solid var(--border-gold);
    border-radius: 8px;
    padding: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.75;
}

.apply-tip strong { color: var(--gold-light); }

@media (max-width: 900px) {
    .apply-grid { grid-template-columns: 1fr; gap: 2rem; }
    .apply-side { position: static; }
    .apply-card { padding: 1.8rem; }
}

/* ========== 页脚 ========== */
.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    padding: 4rem 0 2rem;
    margin-top: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-brand .brand { margin-bottom: 0.5rem; }

.footer-tagline {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 280px;
}

.footer-col h4 {
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--gold-light);
    letter-spacing: 2px;
    margin-bottom: 1.2rem;
    text-transform: uppercase;
}

.footer-col ul li {
    margin-bottom: 0.6rem;
}

.footer-col ul li a {
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: color 0.3s;
}

.footer-col ul li a:hover { color: var(--gold-light); }

.footer-bottom {
    border-top: 1px solid var(--border-subtle);
    padding-top: 2rem;
    text-align: center;
    font-size: 0.78rem;
    color: var(--text-muted);
    letter-spacing: 1px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}
.footer-bottom > div:first-child { text-align: left; }
.footer-bottom > div:last-child { text-align: right; }

/* ==================== 语言切换器 ==================== */
.footer-lang {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    color: var(--text-muted);
}
.footer-lang .lang-icon {
    color: var(--gold-light);
    margin-right: 0.3rem;
}
.footer-lang a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}
.footer-lang a:hover { color: var(--gold-light); }
.footer-lang a.lang-active {
    color: var(--gold-light);
    font-weight: 500;
}
.footer-lang .lang-divider {
    color: var(--border-subtle);
    user-select: none;
}

/* 移动端主菜单语言切换器 */
.mobile-lang {
    display: none;
}
.mobile-lang-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 0.7rem;
    letter-spacing: 1px;
}
.mobile-lang-links {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}
.mobile-lang-links a {
    flex: 1;
    text-align: center;
    padding: 0.6rem 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    transition: all 0.3s;
    min-width: 90px;
}
.mobile-lang-links a:hover {
    border-color: var(--border-gold);
    color: var(--gold-light);
}
.mobile-lang-links a.lang-active {
    border-color: var(--gold-light);
    color: var(--gold-light);
    background: rgba(255, 184, 0, 0.06);
}

@media (max-width: 900px) {
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    .footer-bottom > div:first-child,
    .footer-bottom > div:last-child { text-align: center; }
    .footer-lang { display: none; }
}

@media (max-width: 900px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
    .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
}

/* ========== 滚动入场动画（默认完全显示，无任何隐藏） ========== */
/* 按要求：页面加载直接展示内容，无过渡/动画/闪烁。
   这里只保留 transition 备用，元素始终保持可见。 */
.fade-up {
    opacity: 1 !important;
    transform: none !important;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

/* js-anim 模式：进入视口时使用更柔和的浮入效果（仅 transform，不修改 opacity） */
body.js-anim .fade-up:not(.in-view) {
    transform: translateY(20px);
}
body.js-anim .fade-up.in-view {
    transform: translateY(0);
}

/* ========== 流动条 / 信任带 ========== */
.trust-strip {
    background: linear-gradient(90deg, rgba(255, 184, 0, 0.05), rgba(255, 106, 61, 0.05), rgba(255, 184, 0, 0.05));
    border-top: 1px solid var(--border-gold);
    border-bottom: 1px solid var(--border-gold);
    padding: 1.4rem 0;
    overflow: hidden;
    position: relative;
}

.trust-track {
    display: flex;
    gap: 3rem;
    animation: scrollTrack 30s linear infinite;
    white-space: nowrap;
}

.trust-item {
    color: var(--text-secondary);
    font-size: 0.85rem;
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.trust-item::before {
    content: '◆';
    color: var(--gold-light);
    font-size: 0.5rem;
}

@keyframes scrollTrack {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* ========== 区域差异表 ========== */
.compare-table {
    max-width: 1100px;
    margin: 3rem auto 0;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    overflow: hidden;
}

.compare-row {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    border-bottom: 1px solid var(--border-subtle);
    transition: background 0.3s;
}

.compare-row:hover { background: rgba(255, 184, 0, 0.03); }
.compare-row:last-child { border-bottom: none; }
.compare-row.head { background: rgba(255, 184, 0, 0.06); }

.compare-cell {
    padding: 1.2rem 1.5rem;
    font-size: 0.88rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
}

.compare-row.head .compare-cell {
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--gold-light);
    letter-spacing: 1.5px;
    font-weight: 600;
}

.compare-cell strong { color: var(--mulan-white); }

.compare-cell.tag-orange { color: var(--orange-light); font-weight: 600; }
.compare-cell.tag-gold { color: var(--gold-light); font-weight: 600; }

@media (max-width: 768px) {
    .compare-row { grid-template-columns: 1fr 1fr; }
    .compare-cell:first-child { grid-column: 1 / -1; background: rgba(255, 184, 0, 0.05); }
}