/* =========================================================
   风车动漫 | "Breeze & Pinwheel" Design System
   Awwwards-Inspired · Warm Paper · Coral × Teal × Gold
   ========================================================= */

:root {
    --paper: #FFF9F0;
    --paper-dark: #F0EBE1;
    --coral: #FF6B5E;
    --coral-light: #FF8E7B;
    --teal: #2EC4B6;
    --teal-soft: #E8F4F0;
    --gold: #FFD166;
    --ink: #2D3436;
    --ink-70: rgba(45, 52, 54, 0.7);
    --ink-50: rgba(45, 52, 54, 0.5);
    --white: #ffffff;
    --shadow-sm: 0 4px 20px rgba(45, 52, 54, 0.06);
    --shadow-md: 0 8px 32px rgba(45, 52, 54, 0.08);
    --shadow-lg: 0 20px 60px rgba(45, 52, 54, 0.10);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-pill: 50px;
}

/* ============ 基础重置 ============ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    overflow-x: hidden;
    background: var(--paper);
    color: var(--ink);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

/* 全局风纹背景 — 极细的斜面风线 */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background:
        repeating-linear-gradient(115deg, transparent 0px, transparent 24px, rgba(46, 196, 182, 0.018) 24px, rgba(46, 196, 182, 0.018) 26px),
        repeating-linear-gradient(65deg, transparent 0px, transparent 40px, rgba(255, 107, 94, 0.012) 40px, rgba(255, 107, 94, 0.012) 42px);
    pointer-events: none;
    z-index: 9990;
}

/* ============ 核心布局 ============ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

.section {
    padding: 100px 0;
    position: relative;
}

.section:nth-child(even) {
    background: var(--paper-dark);
}

.section:nth-child(even)::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 107, 94, 0.18), transparent);
}

/* 每个 section 底部一道彩虹风痕 */
.section::after {
    content: '';
    position: absolute;
    bottom: 0; left: 50%;
    transform: translateX(-50%);
    width: 120px; height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--coral), var(--gold), var(--teal));
    opacity: 0.25;
}

/* ============ 导航 ============ */
.site-header {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 249, 240, 0.90);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 107, 94, 0.10);
    transition: box-shadow 0.4s ease, background 0.4s ease;
}
.site-header:hover {
    box-shadow: 0 4px 30px rgba(255, 107, 94, 0.06);
    background: rgba(255, 249, 240, 0.97);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Logo — 旋转的纸风车 */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 900;
    font-size: 1.25rem;
    text-decoration: none;
    color: var(--ink);
    letter-spacing: 0.5px;
    transition: transform 0.3s ease;
}
.logo:hover {
    transform: scale(1.02);
}
.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    background: linear-gradient(135deg, var(--coral), var(--coral-light));
    color: var(--white);
    position: relative;
    box-shadow: 0 4px 16px rgba(255, 107, 94, 0.35);
    flex-shrink: 0;
    overflow: hidden;
}
.logo-icon::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 24px; height: 24px;
    background: conic-gradient(
        from 0deg,
        var(--white) 0deg 90deg,
        transparent 90deg 180deg,
        var(--gold) 180deg 270deg,
        transparent 270deg 360deg
    );
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: spin 8s linear infinite;
}
.logo-icon::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 8px; height: 8px;
    background: var(--white);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.4);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 30px;
    list-style: none;
}
.main-nav a {
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--ink-70);
    transition: color 0.3s ease;
    position: relative;
    padding: 6px 0;
    letter-spacing: 0.3px;
}
.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 100%; height: 2px;
    background: linear-gradient(90deg, var(--coral), var(--teal));
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.65, 0, 0.35, 1);
    border-radius: 2px;
}
.main-nav a:hover {
    color: var(--coral);
}
.main-nav a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-cta {
    padding: 10px 24px;
    border-radius: var(--radius-pill);
    color: var(--white) !important;
    font-weight: 600;
    background: linear-gradient(135deg, var(--coral), var(--coral-light));
    box-shadow: 0 4px 16px rgba(255, 107, 94, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease !important;
    font-size: 0.85rem !important;
}
.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 107, 94, 0.4) !important;
}
.nav-cta::after { display: none; }

.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: var(--radius-sm);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}
.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ============ 首页 Hero ============ */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    gap: 60px;
    position: relative;
    background:
        radial-gradient(ellipse at 15% 60%, rgba(255, 209, 102, 0.14) 0%, transparent 55%),
        radial-gradient(ellipse at 85% 30%, rgba(46, 196, 182, 0.12) 0%, transparent 45%),
        radial-gradient(ellipse at 70% 85%, rgba(255, 107, 94, 0.08) 0%, transparent 50%),
        linear-gradient(135deg, var(--paper) 0%, #fff0e6 50%, var(--teal-soft) 100%);
    overflow: hidden;
    padding: 120px 0 80px;
}

/* 巨大的背景 "风" 字 */
.hero::before {
    content: '風';
    position: absolute;
    right: -20px;
    bottom: -40px;
    font-size: 12rem;
    font-weight: 900;
    color: rgba(255, 107, 94, 0.05);
    line-height: 1;
    letter-spacing: -10px;
    pointer-events: none;
    z-index: 0;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* 旋转的风车虚线圆 */
.hero::after {
    content: '';
    position: absolute;
    top: 20%;
    right: -80px;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    border: 2px dashed rgba(46, 196, 182, 0.12);
    animation: spin 40s linear infinite;
    pointer-events: none;
}

.hero-content {
    max-width: 720px;
    position: relative;
    z-index: 2;
    flex: 1;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.82rem;
    font-weight: 700;
    padding: 6px 20px;
    border-radius: var(--radius-pill);
    margin-bottom: 20px;
    background: linear-gradient(135deg, rgba(255, 107, 94, 0.08), rgba(46, 196, 182, 0.08));
    color: var(--coral);
    letter-spacing: 2px;
    border: 1px solid rgba(255, 107, 94, 0.18);
    backdrop-filter: blur(4px);
}

.hero h1 {
    font-size: 3.4rem;
    line-height: 1.08;
    margin-bottom: 22px;
    font-weight: 900;
    letter-spacing: -3px;
    color: var(--ink);
}
.hero h1 .text-accent {
    background: linear-gradient(135deg, var(--coral), var(--coral-light), var(--teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}
.hero h1 .text-accent::after {
    content: '';
    position: absolute;
    bottom: 2px; left: 0;
    width: 100%; height: 6px;
    background: linear-gradient(90deg, var(--gold), transparent);
    border-radius: 3px;
    opacity: 0.35;
    z-index: -1;
}

.hero p {
    font-size: 1.1rem;
    opacity: 0.65;
    max-width: 560px;
    margin-bottom: 36px;
    line-height: 1.8;
    color: var(--ink);
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image {
    flex: 1;
    max-width: 460px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    min-height: 420px;
    background:
        radial-gradient(ellipse at 65% 25%, rgba(255, 107, 94, 0.18) 0%, transparent 50%),
        radial-gradient(ellipse at 35% 80%, rgba(46, 196, 182, 0.18) 0%, transparent 50%),
        linear-gradient(135deg, #fff4ec, #eaf5f2, #fff9f0);
    border: 1px solid rgba(255, 255, 255, 0.7);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image::before {
    content: '🪁';
    position: absolute;
    top: 28%;
    left: 55%;
    font-size: 4.5rem;
    opacity: 0.4;
    animation: floatKite 7s ease-in-out infinite;
    z-index: 1;
}

.hero-image::after {
    content: '';
    position: absolute;
    top: 45%;
    left: 20%;
    width: 180px;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(46, 196, 182, 0.5), transparent);
    transform: rotate(-18deg);
    border-radius: 2px;
    animation: windLine 4s ease-in-out infinite;
}

/* 风车装饰 — 大型旋转叶片 */
.hero-image .hero-image-inner {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 420px;
    overflow: hidden;
}
.hero-image .hero-image-inner::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 200px; height: 200px;
    background: conic-gradient(
        from 0deg,
        rgba(255, 107, 94, 0.15) 0deg 90deg,
        transparent 90deg 180deg,
        rgba(46, 196, 182, 0.15) 180deg 270deg,
        transparent 270deg 360deg
    );
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: spin 20s linear infinite;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.hero-image img {
    width: 100%;
    height: 100%;
    min-height: 420px;
    object-fit: cover;
    opacity: 0.15;
    mix-blend-mode: multiply;
}

/* ============ 按钮 ============ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: var(--radius-pill);
    font-weight: 600;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, background 0.3s ease;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
}
.btn:active {
    transform: scale(0.96);
}

.btn-primary {
    background: linear-gradient(135deg, var(--coral), var(--coral-light));
    color: var(--white);
    box-shadow: 0 6px 20px rgba(255, 107, 94, 0.35);
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 32px rgba(255, 107, 94, 0.45);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid rgba(45, 52, 54, 0.2);
    color: var(--ink);
    backdrop-filter: blur(4px);
}
.btn-outline:hover {
    border-color: var(--coral);
    color: var(--coral);
    background: rgba(255, 107, 94, 0.04);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(255, 107, 94, 0.12);
}

/* ============ 标签 / 标题 ============ */
.section-label {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 4px;
    margin-bottom: 14px;
    color: var(--coral);
    text-transform: uppercase;
    position: relative;
    padding-left: 30px;
    line-height: 1.4;
}
.section-label::before {
    content: '✦';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    color: var(--teal);
    animation: spinSlow 10s linear infinite;
}

.section-title {
    font-size: 2.4rem;
    line-height: 1.15;
    margin-bottom: 16px;
    font-weight: 800;
    letter-spacing: -1.5px;
    color: var(--ink);
}

.section-desc {
    max-width: 600px;
    opacity: 0.6;
    margin-bottom: 48px;
    font-size: 1rem;
    line-height: 1.7;
}

/* ============ 卡片网格 ============ */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 28px;
}

.category-card {
    border-radius: var(--radius-md);
    padding: 32px 28px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-sm);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.35s ease;
    position: relative;
    overflow: hidden;
}

/* 卡片底部的渐变线 */
.category-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--coral), var(--gold), var(--teal));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

/* 卡片的旋转参考点 */
.category-card::before {
    content: '';
    position: absolute;
    top: -40px; right: -40px;
    width: 80px; height: 80px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 209, 102, 0.15) 0%, transparent 70%);
    transition: opacity 0.4s ease;
}

.category-card:hover {
    transform: translateY(-6px) rotate(0.5deg);
    box-shadow: var(--shadow-md);
}
.category-card:hover::after {
    transform: scaleX(1);
}
.category-card:hover::before {
    opacity: 1;
}

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    font-size: 1.4rem;
    background: linear-gradient(135deg, var(--teal-soft), var(--paper));
    border: 1px solid rgba(46, 196, 182, 0.15);
    box-shadow: 0 4px 12px rgba(46, 196, 182, 0.08);
    transition: transform 0.3s ease;
}
.category-card:hover .card-icon {
    transform: scale(1.1) rotate(8deg);
}

.card-link {
    font-weight: 600;
    font-size: 0.85rem;
    text-decoration: none;
    color: var(--coral);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.3s ease;
    margin-top: 14px;
}
.card-link:hover {
    gap: 10px;
}

/* ============ 特性块 ============ */
.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.feature-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    min-height: 320px;
    background: linear-gradient(135deg, #e8f4f0, #fff4ec);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.6);
}
.feature-image::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 80px; height: 80px;
    border-radius: 50%;
    border: 2px dashed rgba(46, 196, 182, 0.3);
    transform: translate(-50%, -50%);
    animation: spin 15s linear infinite;
}
.feature-image img {
    width: 100%;
    height: 100%;
    min-height: 320px;
    object-fit: cover;
    opacity: 0.4;
}

.feature-text {
    position: relative;
    z-index: 1;
}

.feature-list {
    list-style: none;
    margin-top: 8px;
}
.feature-list li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--ink-70);
    transition: transform 0.3s ease, color 0.3s ease;
}
.feature-list li:hover {
    transform: translateX(6px);
    color: var(--ink);
}
.feature-list li::before {
    content: '✓';
    font-weight: 800;
    color: var(--white);
    background: linear-gradient(135deg, var(--teal), var(--coral));
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    flex-shrink: 0;
    box-shadow: 0 3px 8px rgba(46, 196, 182, 0.3);
}

/* ============ 数据条 ============ */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    text-align: center;
}

.stat-item {
    padding: 32px 24px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(8px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}
.stat-item::before {
    content: '';
    position: absolute;
    top: -30px; right: -30px;
    width: 60px; height: 60px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 107, 94, 0.1) 0%, transparent 70%);
}
.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: 2.6rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--coral), var(--coral-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -2px;
    line-height: 1.1;
}
.stat-label {
    font-size: 0.88rem;
    opacity: 0.55;
    margin-top: 8px;
    font-weight: 500;
    letter-spacing: 1px;
}

/* ============ 内容墙 ============ */
.content-wall {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 28px;
}

.content-wall-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: var(--shadow-sm);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.35s ease;
    position: relative;
}
.content-wall-item::after {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 0; height: 0;
    border-radius: 0 0 0 16px;
    background: linear-gradient(135deg, var(--gold), var(--coral));
    opacity: 0;
    transition: opacity 0.3s ease;
    width: 16px; height: 16px;
    background: linear-gradient(135deg, var(--gold), var(--coral));
    top: 0; right: 0;
    border-radius: 0 0 0 8px;
}
.content-wall-item:hover {
    transform: translateY(-6px) rotate(0.8deg);
    box-shadow: var(--shadow-md);
}
.content-wall-item:hover::after {
    opacity: 1;
}

.content-wall-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.5s ease;
    display: block;
}
.content-wall-item:hover img {
    transform: scale(1.04);
}

.content-wall-body {
    padding: 22px;
}
.content-wall-body h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
}
.content-wall-body p {
    font-size: 0.85rem;
    opacity: 0.6;
    line-height: 1.6;
}

/* ============ FAQ ============ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
    backdrop-filter: blur(8px);
}
.faq-item:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(46, 196, 182, 0.3);
}

.faq-item .faq-question {
    padding: 20px 24px;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1rem;
    color: var(--ink);
    transition: color 0.3s ease;
}
.faq-item .faq-question::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--coral);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    flex-shrink: 0;
}
.faq-item.open .faq-question::after {
    transform: rotate(45deg);
}
.faq-item.open .faq-question {
    color: var(--coral);
}

.faq-item .faq-answer {
    padding: 0 24px 20px;
    display: none;
    opacity: 0.6;
    font-size: 0.92rem;
    line-height: 1.7;
    border-top: 1px dashed rgba(45, 52, 54, 0.1);
    padding-top: 16px;
    padding-bottom: 20px;
}
.faq-item.open .faq-answer {
    display: block;
    animation: fadeInDown 0.3s ease;
}

/* ============ CTA 横幅 ============ */
.cta-banner {
    padding: 64px 48px;
    text-align: center;
    border-radius: var(--radius-lg);
    background:
        radial-gradient(ellipse at 30% 20%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(255, 209, 102, 0.2) 0%, transparent 45%),
        linear-gradient(135deg, var(--coral), var(--coral-light), var(--teal));
    color: var(--white);
    box-shadow: 0 20px 60px rgba(255, 107, 94, 0.3);
    position: relative;
    overflow: hidden;
    isolation: isolate;
}
.cta-banner::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 300px; height: 300px;
    border-radius: 50%;
    border: 2px dashed rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    animation: spin 30s linear infinite;
    z-index: -1;
}
.cta-banner::after {
    content: '想';
    position: absolute;
    bottom: -10px; right: 20px;
    font-size: 6rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.12);
    line-height: 1;
    z-index: -1;
}
.cta-banner h2 {
    color: var(--white);
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -1px;
    position: relative;
}
.cta-banner p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 28px;
    font-size: 1rem;
    position: relative;
}
.cta-banner .btn-primary {
    background: var(--white);
    color: var(--coral);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}
.cta-banner .btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
}

/* ============ 页脚 ============ */
.site-footer {
    padding: 72px 0 32px;
    background: linear-gradient(135deg, #2D3436, #1e2426);
    color: rgba(255, 255, 255, 0.75);
}
.site-footer .container {
    max-width: 1200px;
}

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

.footer-brand {
    position: relative;
}
.footer-brand .logo {
    color: var(--white);
    font-weight: 800;
    font-size: 1.2rem;
    margin-bottom: 16px;
    display: inline-flex;
}
.footer-brand .logo:hover {
    transform: none;
}
.footer-brand p {
    font-size: 0.88rem;
    opacity: 0.5;
    line-height: 1.7;
    margin-top: 12px;
    max-width: 280px;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-col h4 {
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    position: relative;
}
.footer-col h4::after {
    content: '';
    display: block;
    width: 24px; height: 2px;
    background: linear-gradient(90deg, var(--coral), var(--gold));
    margin-top: 6px;
    border-radius: 2px;
}
.footer-col a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    font-size: 0.88rem;
    transition: color 0.3s ease, padding-left 0.3s ease;
    line-height: 1.6;
}
.footer-col a:hover {
    color: var(--gold);
    padding-left: 6px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 48px;
    padding-top: 24px;
    text-align: center;
    font-size: 0.82rem;
    opacity: 0.45;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.5px;
}

/* ============ 工具类 ============ */
.text-accent {
    color: var(--coral);
}
.text-center {
    text-align: center;
}
.text-center .section-desc,
.text-center .seo-description {
    margin-left: auto;
    margin-right: auto;
}
.seo-description {
    max-width: 600px;
    margin: 0 auto 48px;
    opacity: 0.6;
    font-size: 1rem;
    line-height: 1.7;
    text-align: center;
}
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ============ 关键帧动画 ============ */
@keyframes spin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes spinSlow {
    from { transform: translateY(-50%) rotate(0deg); }
    to { transform: translateY(-50%) rotate(360deg); }
}

@keyframes floatKite {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-18px) rotate(5deg); }
    50% { transform: translateY(-8px) rotate(-3deg); }
    75% { transform: translateY(-14px) rotate(2deg); }
}

@keyframes windLine {
    0%, 100% { opacity: 0.1; transform: translateX(0) rotate(-18deg); }
    50% { opacity: 0.5; transform: translateX(15px) rotate(-18deg); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-14px); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 4px 16px rgba(255, 107, 94, 0.3); }
    50% { box-shadow: 0 8px 28px rgba(255, 107, 94, 0.5); }
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
    .hero {
        padding: 120px 24px 60px;
        gap: 40px;
    }
    .hero h1 {
        font-size: 2.8rem;
    }
    .hero-image {
        max-width: 380px;
        min-height: 320px;
    }
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 72px 0;
    }
    .hero {
        flex-direction: column;
        padding: 120px 24px 60px;
        gap: 48px;
    }
    .hero-content {
        max-width: 100%;
    }
    .hero h1 {
        font-size: 2.4rem;
        letter-spacing: -2px;
    }
    .hero-image {
        max-width: 100%;
        width: 100%;
        min-height: 280px;
    }
    .feature-block {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .main-nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(255, 249, 240, 0.98);
        backdrop-filter: blur(20px);
        padding: 24px;
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        border-bottom: 1px solid rgba(255, 107, 94, 0.1);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
        animation: fadeInDown 0.3s ease;
    }
    .main-nav.open {
        display: flex;
        flex-direction: column;
    }
    .main-nav a {
        font-size: 1rem;
        padding: 8px 0;
        width: 100%;
        border-bottom: 1px solid rgba(45, 52, 54, 0.05);
    }
    .main-nav a::after {
        display: none;
    }
    .nav-cta {
        width: 100%;
        text-align: center;
    }
    .menu-toggle {
        display: flex;
    }
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    .cta-banner {
        padding: 48px 32px;
    }
    .cta-banner h2 {
        font-size: 1.6rem;
    }
    .hero::after {
        width: 240px;
        height: 240px;
        right: -60px;
    }
}

@media (max-width: 480px) {
    .cards-grid,
    .content-wall,
    .stats-bar {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    .section-title {
        font-size: 1.7rem;
    }
    .hero h1 {
        font-size: 2rem;
        letter-spacing: -1.5px;
    }
    .hero p {
        font-size: 1rem;
    }
    .stat-number {
        font-size: 2rem;
    }
    .cta-banner {
        padding: 40px 20px;
        border-radius: var(--radius-md);
    }
    .site-footer {
        padding: 48px 0 24px;
    }
    .hero {
        min-height: auto;
        padding: 110px 20px 48px;
    }
    .hero::before {
        font-size: 6rem;
        right: 0;
        bottom: 0;
    }
    .section {
        padding: 56px 0;
    }
    .section-label {
        letter-spacing: 2px;
        font-size: 0.72rem;
    }
    .content-wall-item img {
        height: 160px;
    }
    .faq-item .faq-question {
        padding: 16px 18px;
        font-size: 0.92rem;
    }
    .faq-item .faq-answer {
        padding: 0 18px 16px;
        font-size: 0.85rem;
    }
}

/* ============ 滚动条美化 ============ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--paper);
}
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--coral), var(--teal));
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--coral-light), var(--teal));
}

/* ============ 选中文本 ============ */
::selection {
    background: rgba(255, 107, 94, 0.2);
    color: var(--coral);
}

/* ============ 大屏增强 ============ */
@media (min-width: 1600px) {
    .container {
        max-width: 1320px;
    }
    .hero {
        min-height: 75vh;
    }
    .hero h1 {
        font-size: 3.8rem;
    }
    .section-title {
        font-size: 2.6rem;
    }
}

/* ============ Hero 内部装饰 ============ */
.hero .hero-image .hero-mock-card {
    position: absolute;
    z-index: 5;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    border-radius: 16px;
    padding: 16px 20px;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.8);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--ink);
    animation: float 5s ease-in-out infinite;
    letter-spacing: 0.3px;
}
.hero .hero-image .hero-mock-card span {
    color: var(--coral);
    font-size: 1.2rem;
    margin-right: 6px;
}
.hero .hero-image .hero-mock-card.mock-card-1 {
    top: 60px;
    left: 30px;
    animation-delay: 1s;
}
.hero .hero-image .hero-mock-card.mock-card-2 {
    bottom: 60px;
    right: 30px;
    animation-delay: 2.5s;
}
.hero .hero-image .hero-mock-card.mock-card-3 {
    top: 45%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 0.5s;
    font-size: 1.2rem;
    padding: 20px 32px;
    border-radius: 20px;
}
.hero .hero-image .hero-mock-card.mock-card-3::before {
    content: '';
    position: absolute;
    top: 50%; left: -4px;
    width: 8px; height: 8px;
    background: var(--coral);
    border-radius: 50%;
    transform: translateY(-50%);
}

/* ============ 页脚风车装饰 ============ */
.site-footer::before {
    content: '';
    position: absolute;
    top: 40px; right: 60px;
    width: 60px; height: 60px;
    border-radius: 50%;
    background: conic-gradient(
        from 0deg,
        rgba(255, 107, 94, 0.2) 0deg 90deg,
        transparent 90deg 180deg,
        rgba(255, 209, 102, 0.2) 180deg 270deg,
        transparent 270deg 360deg
    );
    animation: spin 12s linear infinite;
    opacity: 0.5;
    pointer-events: none;
}

/* ============ 卡片网格装饰 ============ */
.cards-grid {
    position: relative;
}
.cards-grid::before {
    content: '';
    position: absolute;
    top: 20px;
    right: 10px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 2px dashed rgba(46, 196, 182, 0.15);
    pointer-events: none;
    z-index: 0;
}

/* ============ CTA 横幅装饰風車 ============ */
.cta-banner .windmill-emoji {
    display: inline-block;
    font-size: 2.5rem;
    margin-bottom: 10px;
    animation: spin 10s linear infinite;
}

/* ============ 工具类补充 ============ */
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }

/* ============ 打印样式 ============ */
@media print {
    .site-header,
    .site-footer,
    .hero-buttons,
    .cta-banner {
        display: none;
    }
    .section {
        padding: 40px 0;
    }
    body {
        background: var(--white);
    }
}