/* ============================================================
   720全景工坊 - 产品官网样式
   ============================================================ */

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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #a5b4fc;
    --accent: #06b6d4;
    --accent-dark: #0891b2;
    --bg: #0a0a1a;
    --bg-card: #12122a;
    --bg-card-hover: #1a1a3e;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    --border: rgba(255,255,255,0.06);
    --border-light: rgba(255,255,255,0.1);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", "Heiti SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

a { color: inherit; text-decoration: none; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 24px; border-radius: 50px; font-weight: 500;
    font-size: 0.9rem; cursor: pointer; transition: var(--transition);
    border: none; white-space: nowrap; font-family: inherit;
}
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff; box-shadow: 0 4px 20px rgba(99,102,241,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(99,102,241,0.5); }
.btn-outline { border: 1.5px solid var(--border-light); color: var(--text); background: transparent; }
.btn-outline:hover { border-color: var(--primary-light); color: var(--primary-light); background: rgba(99,102,241,0.08); }
.btn-ghost { color: var(--text-muted); background: transparent; }
.btn-ghost:hover { color: var(--text); }
.btn-ghost-light { color: rgba(255,255,255,0.7); background: transparent; border: 1.5px solid rgba(255,255,255,0.2); }
.btn-ghost-light:hover { color: #fff; border-color: rgba(255,255,255,0.5); background: rgba(255,255,255,0.1); }
.btn-white { background: #fff; color: #1e1b4b; }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

/* ---------- Navbar ---------- */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    padding: 16px 0; transition: var(--transition);
}
.navbar.scrolled { background: rgba(10,10,26,0.85); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.2rem; color: #fff; flex-shrink: 0; }
.logo svg { color: var(--primary); flex-shrink: 0; }
.nav-links { display: flex; gap: 32px; }
.nav-links a { font-size: 0.9rem; color: var(--text-muted); position: relative; }
.nav-links a:hover { color: #fff; }
.nav-links a::after {
    content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
    background: var(--primary); transition: width 0.3s; border-radius: 1px;
}
.nav-links a:hover::after { width: 100%; }
.nav-actions { display: flex; gap: 12px; align-items: center; }
.mobile-toggle {
    display: none; flex-direction: column; gap: 5px; background: none;
    border: none; cursor: pointer; padding: 4px; flex-shrink: 0;
}
.mobile-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); }

/* ---------- Hero ---------- */
.hero {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    position: relative; padding: 120px 0 80px; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; }
.hero-sphere {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    width: 800px; height: 800px; border-radius: 50%;
    background: radial-gradient(circle at 40% 40%, rgba(99,102,241,0.15), transparent 60%),
                radial-gradient(circle at 60% 60%, rgba(6,182,212,0.1), transparent 60%);
    animation: spherePulse 8s ease-in-out infinite;
}
@keyframes spherePulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 1; }
}
.hero-grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 800px; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 20px; border-radius: 50px;
    background: rgba(99,102,241,0.1); border: 1px solid rgba(99,102,241,0.2);
    font-size: 0.85rem; color: var(--primary-light); margin-bottom: 32px;
}
.badge-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--accent); animation: dotBlink 2s ease-in-out infinite;
}
@keyframes dotBlink { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }
.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 900;
    line-height: 1.15; margin-bottom: 24px; letter-spacing: -0.02em;
}
.gradient-text {
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-desc {
    font-size: 1.15rem; color: var(--text-muted); max-width: 520px;
    margin: 0 auto 40px; line-height: 1.7;
}
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 64px; }
.hero-stats { display: flex; align-items: center; justify-content: center; gap: 48px; }
.stat-item { text-align: center; }
.stat-number { font-size: 2.5rem; font-weight: 900; color: #fff; display: block; line-height: 1; }
.stat-suffix { font-size: 1.2rem; font-weight: 700; color: #fff; }
.stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 6px; display: block; }
.stat-divider { width: 1px; height: 40px; background: var(--border-light); }
.hero-scroll {
    position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 6px;
    font-size: 0.8rem; color: var(--text-dim); animation: scrollBounce 2s ease-in-out infinite;
}
@keyframes scrollBounce { 0%, 100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(8px); } }

/* ---------- Section Common ---------- */
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
    display: inline-block; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.05em;
    text-transform: uppercase; color: var(--primary-light);
    background: rgba(99,102,241,0.1); padding: 6px 16px; border-radius: 50px; margin-bottom: 16px;
}
.section-title { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 800; margin-bottom: 16px; color: #fff; }
.section-desc { font-size: 1.05rem; color: var(--text-muted); max-width: 560px; margin: 0 auto; }

/* ---------- Features ---------- */
.features { padding: 120px 0; }
.features-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}
.feature-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 36px 28px;
    transition: var(--transition); position: relative; overflow: hidden;
}
.feature-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), var(--accent), transparent);
    opacity: 0; transition: opacity 0.3s;
}
.feature-card:hover {
    background: var(--bg-card-hover); border-color: var(--border-light);
    transform: translateY(-4px); box-shadow: var(--shadow-lg);
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
    width: 56px; height: 56px; border-radius: var(--radius-sm);
    background: rgba(99,102,241,0.1); display: flex; align-items: center;
    justify-content: center; margin-bottom: 20px; color: var(--primary-light);
    transition: var(--transition);
}
.feature-card:hover .feature-icon { background: rgba(99,102,241,0.2); }
.feature-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; }

/* ---------- Showcase ---------- */
.showcase { padding: 80px 0 120px; }
.showcase-tabs { display: flex; justify-content: center; gap: 8px; margin-bottom: 40px; flex-wrap: wrap; }
.tab-btn {
    padding: 8px 20px; border-radius: 50px; border: 1px solid var(--border);
    background: transparent; color: var(--text-muted); cursor: pointer;
    font-size: 0.9rem; transition: var(--transition); font-family: inherit;
}
.tab-btn:hover { border-color: var(--border-light); color: var(--text); }
.tab-btn.active { background: rgba(99,102,241,0.15); border-color: var(--primary); color: var(--primary-light); }
.showcase-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 24px; }
.showcase-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden; transition: var(--transition);
}
.showcase-card:hover { border-color: var(--border-light); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.card-image { position: relative; aspect-ratio: 16/10; overflow: hidden; }
.card-panorama { width: 100%; height: 100%; }
.pano-bg { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; position: relative; }
.pano-room {
    width: 70%; height: 60%; position: relative;
    perspective: 300px; transform-style: preserve-3d;
}
.pano-wall { position: absolute; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); }
.pano-wall-back { width: 100%; height: 100%; transform: translateZ(-30px); }
.pano-wall-left { width: 20%; height: 100%; left: -20%; transform: rotateY(90deg) translateZ(-50px); transform-origin: right center; }
.pano-wall-right { width: 20%; height: 100%; right: -20%; transform: rotateY(-90deg) translateZ(-50px); transform-origin: left center; }
.pano-floor { position: absolute; bottom: 0; left: -20%; width: 140%; height: 40%; transform: rotateX(80deg); transform-origin: top center; background: rgba(255,255,255,0.03); }
.card-badge {
    position: absolute; top: 14px; right: 14px; padding: 4px 12px; border-radius: 50px;
    font-size: 0.75rem; font-weight: 600; background: rgba(239,68,68,0.9); color: #fff;
}
.card-badge.hot { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.card-overlay {
    position: absolute; inset: 0; display: flex; align-items: center;
    justify-content: center; background: rgba(10,10,26,0.6); opacity: 0; transition: var(--transition);
}
.card-overlay-text {
    color: rgba(255,255,255,0.9); font-size: 0.85rem; font-weight: 500;
    letter-spacing: 0.05em;
}
.showcase-card:hover .card-overlay { opacity: 1; }
.card-info { padding: 18px 20px; }
.card-info h4 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.card-meta { display: flex; align-items: center; gap: 12px; font-size: 0.8rem; }
.card-tag {
    display: inline-block; padding: 3px 10px; border-radius: 50px;
    background: rgba(99,102,241,0.1); color: var(--primary-light);
    font-size: 0.75rem; font-weight: 500;
}
.section-action { text-align: center; margin-top: 48px; }

/* ---------- How It Works ---------- */
.how-it-works { padding: 80px 0 120px; background: var(--bg-card); }
.steps { display: flex; align-items: flex-start; justify-content: center; gap: 0; max-width: 900px; margin: 0 auto; }
.step-item { flex: 1; text-align: center; position: relative; padding: 0 16px; }
.step-number {
    font-size: 3.5rem; font-weight: 900; color: rgba(99,102,241,0.08);
    position: absolute; top: -20px; left: 50%; transform: translateX(-50%);
    line-height: 1; z-index: 0; pointer-events: none;
}
.step-icon {
    width: 64px; height: 64px; border-radius: 50%; background: var(--bg);
    border: 2px solid var(--border-light); display: flex; align-items: center;
    justify-content: center; margin: 0 auto 20px; position: relative; z-index: 1;
    color: var(--primary-light); transition: var(--transition);
}
.step-item:hover .step-icon { border-color: var(--primary); background: rgba(99,102,241,0.1); }
.step-item h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.step-item p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; }
.step-connector {
    display: flex; align-items: center; padding-top: 32px; flex-shrink: 0;
}
.step-connector span {
    width: 40px; height: 2px; background: var(--border-light); display: block;
    position: relative;
}
.step-connector span::after {
    content: ''; position: absolute; right: -3px; top: -3px;
    width: 8px; height: 8px; border-top: 2px solid var(--border-light);
    border-right: 2px solid var(--border-light); transform: rotate(45deg);
}

/* ---------- Use Cases ---------- */
.use-cases { padding: 120px 0; }
.cases-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; }
.case-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 28px 22px; text-align: center;
    transition: var(--transition);
}
.case-card:hover { background: var(--bg-card-hover); border-color: var(--border-light); transform: translateY(-3px); }
.case-icon { font-size: 2.5rem; margin-bottom: 14px; }
.case-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.case-card p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.6; }

/* ---------- CTA ---------- */
.cta { padding: 80px 0 120px; }
.cta-card {
    background: linear-gradient(135deg, var(--primary-dark), var(--accent-dark));
    border-radius: var(--radius-lg); padding: 72px 48px; text-align: center;
    position: relative; overflow: hidden;
}
.cta-card::before {
    content: ''; position: absolute; top: -100px; right: -80px;
    width: 300px; height: 300px; border-radius: 50%;
    background: rgba(255,255,255,0.06);
}
.cta-card::after {
    content: ''; position: absolute; bottom: -60px; left: -40px;
    width: 200px; height: 200px; border-radius: 50%;
    background: rgba(255,255,255,0.04);
}
.cta-card h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); font-weight: 900; margin-bottom: 12px; color: #fff; position: relative; z-index: 1; }
.cta-card p { font-size: 1.05rem; color: rgba(255,255,255,0.7); margin-bottom: 36px; position: relative; z-index: 1; }
.cta-contact { display: flex; gap: 40px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }
.contact-item { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,0.85); font-size: 1rem; }
.contact-item svg { color: rgba(255,255,255,0.6); }

/* ---------- Footer ---------- */
.footer { padding: 64px 0 32px; border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand .logo { margin-bottom: 12px; }
.footer-brand p { font-size: 0.85rem; color: var(--text-muted); }
.footer-links h4 { font-size: 0.9rem; font-weight: 600; color: #fff; margin-bottom: 16px; }
.footer-links ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 0.85rem; color: var(--text-muted); }
.footer-links a:hover { color: var(--primary-light); }
.footer-bottom { text-align: center; padding-top: 24px; border-top: 1px solid var(--border); }
.footer-bottom p { font-size: 0.82rem; color: var(--text-dim); }

/* ---------- Back to Top ---------- */
.back-to-top {
    position: fixed; bottom: 32px; right: 32px; z-index: 999;
    width: 44px; height: 44px; border-radius: 50%;
    background: var(--bg-card); border: 1px solid var(--border-light);
    color: var(--text-muted); cursor: pointer; display: flex;
    align-items: center; justify-content: center;
    opacity: 0; visibility: hidden; transition: var(--transition);
    box-shadow: var(--shadow);
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }

/* ---------- Responsive ---------- */

/* ---- 平板（<=1024px）---- */
@media (max-width: 1024px) {
    .nav-links { display: none; }
    .mobile-toggle { display: flex; }
    .hero-stats { gap: 32px; }
    .stat-number { font-size: 2rem; }
}

/* ---- 移动端导航菜单展开（<=768px）---- */
@media (max-width: 768px) {
    .container { padding: 0 16px; }

    /* 导航栏 */
    .navbar { padding: 12px 0; }
    .navbar.scrolled { background: rgba(10,10,26,0.95); }
    .logo { font-size: 1.05rem; gap: 8px; }
    .logo svg { width: 28px; height: 28px; }
    .nav-actions { gap: 8px; }
    .nav-actions .btn { padding: 8px 16px; font-size: 0.82rem; }

    /* 移动端菜单展开层 */
    .nav-links {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0; right: 0;
        width: 75%; max-width: 320px;
        height: 100vh; height: 100dvh;
        background: var(--bg-card);
        border-left: 1px solid var(--border);
        padding: 80px 28px 32px;
        gap: 4px;
        transform: translateX(100%);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1001;
        overflow-y: auto;
        box-shadow: -10px 0 40px rgba(0,0,0,0.4);
    }
    .nav-links.open { transform: translateX(0); }
    .nav-links li { width: 100%; }
    .nav-links a {
        display: block;
        font-size: 1rem;
        padding: 14px 0;
        border-bottom: 1px solid var(--border);
    }
    .nav-links a::after { display: none; }

    /* 菜单遮罩层 */
    .nav-overlay {
        display: none;
        position: fixed; inset: 0;
        background: rgba(0,0,0,0.5);
        z-index: 1000;
        opacity: 0;
        transition: opacity 0.3s;
    }
    .nav-overlay.visible { display: block; opacity: 1; }

    /* 汉堡按钮动画 */
    .mobile-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .mobile-toggle.active span:nth-child(2) { opacity: 0; }
    .mobile-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    /* Hero */
    .hero { min-height: 100vh; min-height: 100dvh; padding: 100px 0 60px; }
    .hero-sphere { width: 500px; height: 500px; }
    .hero-badge { font-size: 0.78rem; padding: 5px 14px; margin-bottom: 24px; }
    .hero-title { font-size: clamp(2rem, 9vw, 3rem); margin-bottom: 16px; }
    .hero-desc { font-size: 1rem; margin-bottom: 32px; }
    .hero-buttons { flex-direction: column; align-items: stretch; gap: 12px; margin-bottom: 48px; }
    .hero-buttons .btn { justify-content: center; }
    .hero-stats { gap: 20px; flex-wrap: wrap; }
    .stat-divider { display: none; }
    .stat-number { font-size: 1.6rem; }
    .stat-suffix { font-size: 0.9rem; }
    .stat-label { font-size: 0.72rem; }
    .hero-scroll { display: none; }

    /* Section 通用 */
    .section-header { margin-bottom: 40px; }
    .section-tag { font-size: 0.72rem; padding: 5px 14px; }
    .section-title { font-size: clamp(1.4rem, 5vw, 2rem); }
    .section-desc { font-size: 0.92rem; }

    /* 功能特色 */
    .features { padding: 64px 0; }
    .features-grid { grid-template-columns: 1fr; gap: 16px; }
    .feature-card { padding: 28px 22px; }
    .feature-icon { width: 48px; height: 48px; margin-bottom: 16px; }
    .feature-card h3 { font-size: 1.05rem; }
    .feature-card p { font-size: 0.85rem; }

    /* 案例展示 */
    .showcase { padding: 48px 0 80px; }
    .showcase-tabs { gap: 6px; margin-bottom: 28px; }
    .tab-btn { padding: 6px 14px; font-size: 0.82rem; }
    .showcase-grid { grid-template-columns: 1fr; gap: 16px; }

    /* 服务流程 */
    .how-it-works { padding: 48px 0 80px; }
    .steps { flex-direction: column; gap: 32px; }
    .step-item { padding: 0; }
    .step-connector { padding-top: 0; justify-content: center; }
    .step-connector span { width: 2px; height: 28px; }
    .step-connector span::after { right: -3px; top: auto; bottom: -4px; transform: rotate(135deg); }
    .step-number { font-size: 2.8rem; }
    .step-icon { width: 56px; height: 56px; margin-bottom: 14px; }
    .step-item h3 { font-size: 1rem; }
    .step-item p { font-size: 0.82rem; }

    /* 应用领域 */
    .use-cases { padding: 64px 0; }
    .cases-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .case-card { padding: 22px 16px; }
    .case-icon { font-size: 2rem; margin-bottom: 10px; }
    .case-card h4 { font-size: 0.9rem; }
    .case-card p { font-size: 0.76rem; }

    /* 联系我们 */
    .cta { padding: 48px 0 80px; }
    .cta-card { padding: 48px 20px; border-radius: 16px; }
    .cta-card h2 { font-size: 1.4rem; }
    .cta-card p { font-size: 0.92rem; margin-bottom: 28px; }
    .cta-contact { flex-direction: column; gap: 18px; }
    .contact-item { font-size: 0.9rem; }

    /* 页脚 */
    .footer { padding: 48px 0 24px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; margin-bottom: 32px; }
    .footer-brand { grid-column: 1 / -1; text-align: center; }
    .footer-brand .logo { justify-content: center; }
    .footer-links { text-align: center; }
    .footer-links h4 { font-size: 0.85rem; }
    .footer-links a { font-size: 0.8rem; }
    .footer-bottom { padding-top: 20px; }
    .footer-bottom p { font-size: 0.76rem; }

    /* 回到顶部 */
    .back-to-top { bottom: 20px; right: 16px; width: 40px; height: 40px; }
}

/* ---- 小屏手机（<=480px）---- */
@media (max-width: 480px) {
    .container { padding: 0 14px; }

    .hero { padding: 90px 0 48px; }
    .hero-badge { font-size: 0.72rem; }
    .hero-title { font-size: clamp(1.8rem, 10vw, 2.5rem); }
    .hero-desc { font-size: 0.92rem; }
    .hero-stats { gap: 16px; }
    .stat-number { font-size: 1.4rem; }
    .stat-suffix { font-size: 0.8rem; }
    .stat-label { font-size: 0.68rem; }

    .feature-card { padding: 24px 18px; }
    .feature-card h3 { font-size: 1rem; }

    .cases-grid { grid-template-columns: 1fr; }

    .cta-card { padding: 36px 16px; }
    .cta-card h2 { font-size: 1.2rem; }

    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}

/* ---- 超小屏（<=360px）---- */
@media (max-width: 360px) {
    .hero-title { font-size: 1.6rem; }
    .hero-stats { gap: 12px; }
    .stat-number { font-size: 1.2rem; }
    .nav-actions .btn { padding: 6px 12px; font-size: 0.76rem; }
    .logo span { font-size: 0.95rem; }
}

/* ---- 触摸设备适配 ---- */
@media (hover: none) and (pointer: coarse) {
    .feature-card:hover,
    .showcase-card:hover,
    .case-card:hover,
    .step-item:hover .step-icon {
        transform: none;
        box-shadow: none;
    }
    .showcase-card:hover .card-overlay { opacity: 0; }
    .feature-card:hover::before { opacity: 0; }
}

/* ---- 安全区域适配（刘海屏/底部横条）---- */
@supports (padding: env(safe-area-inset-bottom)) {
    .footer-bottom { padding-bottom: env(safe-area-inset-bottom); }
    .back-to-top { bottom: calc(20px + env(safe-area-inset-bottom)); }
}