/* ═══════════════════════════════════════════
   index.css — 首页专属样式
   ═══════════════════════════════════════════ */

/* ── Hero ── */
.hero {
    min-height: 100vh;
    display: flex; align-items: center;
    padding: 120px 0 80px;
    background:
        radial-gradient(ellipse 80% 60% at 70% 20%, rgba(37, 99, 235, 0.12), transparent),
        radial-gradient(ellipse 50% 40% at 10% 80%, rgba(56, 189, 248, 0.07), transparent);
    position: relative; overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2338bdf8' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.6;
}
.hero-grid { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 48px; }
.hero-content { flex: 1; min-width: 320px; }
.hero-badge {
    background: rgba(56,189,248,0.1);
    display: inline-flex; align-items: center; gap: 8px;
    padding: 7px 16px; border-radius: 40px; font-size: 0.8rem;
    border: 1px solid rgba(56,189,248,0.35);
    margin-bottom: 28px; color: var(--primary);
    animation: fadeInDown 0.8s ease both;
}
.hero-badge .dot { width: 7px; height: 7px; background: var(--primary); border-radius: 50%; animation: pulse 2s infinite; }
.hero-content h1 {
    font-size: 3.4rem; font-weight: 800; line-height: 1.15; margin-bottom: 24px;
    background: linear-gradient(135deg, #fff 0%, #94a3f8 50%, var(--primary) 100%);
    -webkit-background-clip: text; background-clip: text; color: transparent;
    animation: fadeInUp 0.8s ease 0.1s both;
}
.hero-desc { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 36px; max-width: 540px; line-height: 1.75; animation: fadeInUp 0.8s ease 0.2s both; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; animation: fadeInUp 0.8s ease 0.3s both; }
.hero-actions .btn-primary { padding: 13px 28px; font-size: 0.95rem; }
.hero-actions .btn-outline { padding: 12px 26px; font-size: 0.95rem; }
.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; animation: fadeInUp 0.8s ease 0.4s both; }
.stat { text-align: left; }
.stat-number {
    font-size: 2.2rem; font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 2px; }
.hero-visual { flex: 1; min-width: 280px; display: flex; justify-content: center; align-items: center; animation: fadeInRight 1s ease 0.2s both; }
.hero-orb { width: 340px; height: 340px; position: relative; }
.orb-ring { position: absolute; border-radius: 50%; border: 1px solid rgba(56,189,248,0.2); animation: spin linear infinite; }
.orb-ring:nth-child(1) { inset: 0; animation-duration: 20s; }
.orb-ring:nth-child(2) { inset: 30px; border-color: rgba(129,140,248,0.2); animation-duration: 15s; animation-direction: reverse; }
.orb-ring:nth-child(3) { inset: 60px; border-color: rgba(56,189,248,0.15); animation-duration: 25s; }
.orb-ring::before { content: ''; position: absolute; top: -3px; left: 50%; width: 6px; height: 6px; background: var(--primary); border-radius: 50%; transform: translateX(-50%); box-shadow: 0 0 10px var(--primary); }
.orb-center {
    position: absolute; inset: 90px;
    background: radial-gradient(circle, rgba(37,99,235,0.3), rgba(56,189,248,0.1), transparent);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    border: 1px solid rgba(56,189,248,0.3);
    box-shadow: 0 0 40px rgba(56,189,248,0.15), inset 0 0 40px rgba(37,99,235,0.1);
}
.orb-center i { font-size: 4rem; color: var(--primary); filter: drop-shadow(0 0 15px var(--primary)); }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

/* ── 平台卡片 ── */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 28px; }
.platform-card {
    background: var(--bg-card); backdrop-filter: blur(8px);
    border-radius: var(--radius-card); padding: 36px 32px;
    border: 1px solid var(--border); transition: all 0.35s ease;
    position: relative; overflow: hidden;
}
.platform-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, transparent, var(--primary), transparent); opacity: 0; transition: opacity 0.35s; }
.platform-card:hover { transform: translateY(-8px); border-color: var(--border-hover); box-shadow: 0 24px 48px rgba(0,0,0,0.4), var(--glow); }
.platform-card:hover::before { opacity: 1; }
.card-icon-wrap { width: 58px; height: 58px; border-radius: 16px; background: linear-gradient(135deg, rgba(37,99,235,0.2), rgba(56,189,248,0.15)); border: 1px solid rgba(56,189,248,0.2); display: flex; align-items: center; justify-content: center; margin-bottom: 24px; }
.card-icon-wrap i { font-size: 1.6rem; color: var(--primary); }
.platform-card h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 12px; }
.platform-card > p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.65; }
.feature-list { list-style: none; margin: 20px 0 24px; }
.feature-list li { margin-bottom: 10px; display: flex; align-items: flex-start; gap: 10px; font-size: 0.88rem; color: var(--text-nav); }
.feature-list i { color: var(--primary); margin-top: 2px; flex-shrink: 0; }

/* ── 解决方案 ── */
.solutions-bg { background: radial-gradient(ellipse 60% 40% at 0% 50%, rgba(15,25,45,0.6), transparent); }
.solution-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin-top: 16px; }
.sol-item { background: rgba(13, 18, 30, 0.8); border-radius: 20px; padding: 28px 24px; border-left: 3px solid var(--primary); border-top: 1px solid var(--border); border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); transition: 0.3s; }
.sol-item:hover { transform: translateX(6px); box-shadow: var(--glow); }
.sol-item h4 { font-size: 1.1rem; margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.sol-item h4 i { color: var(--primary); }
.sol-item p { color: var(--text-muted); font-size: 0.88rem; line-height: 1.65; }

/* ── 客户案例 ── */
.case-card { background: rgba(11, 15, 24, 0.9); border-radius: 24px; overflow: hidden; border: 1px solid var(--border); transition: 0.3s; }
.case-card:hover { transform: translateY(-4px); border-color: var(--border-hover); box-shadow: var(--glow); }
.case-header { height: 6px; background: linear-gradient(90deg, var(--primary-dark), var(--primary)); }
.case-content { padding: 28px; }
.case-tag { background: rgba(37,99,235,0.15); display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: 40px; font-size: 0.72rem; margin-bottom: 16px; border: 1px solid rgba(37,99,235,0.3); color: #93c5fd; }
.case-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; }
.case-card p { color: var(--text-muted); font-size: 0.88rem; line-height: 1.65; }
.case-stats { color: var(--primary); font-weight: 700; margin: 16px 0 8px; font-size: 0.92rem; }
.case-quote { font-size: 0.82rem; color: var(--text-sub); font-style: italic; }

/* ── 实施流程 ── */
.process-steps { display: flex; flex-wrap: wrap; justify-content: center; gap: 20px; }
.step { flex: 1; min-width: 140px; max-width: 180px; background: rgba(15, 22, 36, 0.8); border-radius: 24px; padding: 28px 18px; text-align: center; border: 1px solid var(--border); transition: 0.3s; position: relative; }
.step:not(:last-child)::after { content: '\2192'; position: absolute; right: -14px; top: 50%; transform: translateY(-50%); color: rgba(56,189,248,0.35); font-size: 1.2rem; }
.step:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: var(--glow); }
.step-number { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--primary-dark), var(--primary)); display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; font-weight: 800; font-size: 1.1rem; box-shadow: 0 4px 12px rgba(37,99,235,0.4); }
.step h4 { font-size: 0.95rem; margin-bottom: 8px; }
.step p { font-size: 0.78rem; color: var(--text-muted); line-height: 1.55; }

/* ── SLA 区块 ── */
.sla-box { margin-top: 48px; background: rgba(10, 15, 28, 0.8); border-radius: 24px; padding: 28px 32px; display: flex; align-items: center; gap: 24px; border: 1px solid var(--border); flex-wrap: wrap; justify-content: center; text-align: center; }
.sla-box .sla-icon { font-size: 2.5rem; color: var(--primary); flex-shrink: 0; }
.sla-box h3 { font-size: 1.15rem; margin-bottom: 4px; }
.sla-box p { color: var(--text-muted); font-size: 0.88rem; }

/* ── 关于我们 ── */
.about-grid { display: flex; gap: 48px; flex-wrap: wrap; align-items: center; }
.about-text { flex: 1; min-width: 280px; }
.about-text h2 { font-size: 2rem; font-weight: 700; margin-bottom: 20px; background: linear-gradient(135deg, #fff, var(--text-heading-muted)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.about-text p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.8; margin-bottom: 14px; }
.about-cert { margin: 20px 0; display: flex; flex-direction: column; gap: 8px; }
.cert-item { display: flex; align-items: center; gap: 10px; font-size: 0.88rem; color: #93c5fd; }
.cert-item i { color: var(--primary); }
.about-visual { flex: 1; min-width: 260px; background: radial-gradient(circle at center, rgba(37,99,235,0.15), rgba(3,6,12,0.8)); border-radius: 28px; padding: 36px; text-align: center; border: 1px solid var(--border); }
.about-visual i { font-size: 3.5rem; color: var(--primary); margin-bottom: 16px; display: block; filter: drop-shadow(0 0 15px var(--primary)); }
.about-stat-row { display: flex; justify-content: center; gap: 32px; margin-top: 20px; }
.about-stat .num { font-size: 1.8rem; font-weight: 800; color: var(--primary); }
.about-stat .lbl { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }

/* ── CTA ── */
.cta-section { background: linear-gradient(135deg, rgba(10, 20, 40, 0.9), rgba(3,7,15,0.95)); border-radius: 40px; padding: 64px 40px; text-align: center; margin-top: 48px; border: 1px solid var(--border); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: -80px; left: 50%; transform: translateX(-50%); width: 400px; height: 200px; background: radial-gradient(ellipse, rgba(56,189,248,0.1), transparent); pointer-events: none; }
.cta-section h3 { font-size: 1.8rem; font-weight: 700; margin-bottom: 12px; }
.cta-section p { color: var(--text-muted); margin-bottom: 28px; font-size: 1rem; }
.cta-btn { background: white; color: #0a1428; padding: 14px 36px; border-radius: var(--radius-btn); font-weight: 700; font-size: 1rem; cursor: pointer; border: none; transition: 0.25s; box-shadow: 0 4px 20px rgba(255,255,255,0.2); font-family: inherit; }
.cta-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(255,255,255,0.3); }

/* ── 响应式（首页专属） ── */
@media (max-width: 960px) {
    .hero-content h1 { font-size: 2.4rem; }
    .section-title { font-size: 1.9rem; }
    .hero-orb { width: 240px; height: 240px; }
    .orb-center { inset: 60px; }
    .process-steps { flex-direction: column; align-items: center; }
    .step:not(:last-child)::after { display: none; }
    .step { max-width: 100%; width: 100%; }
}
@media (max-width: 600px) {
    .hero-content h1 { font-size: 2rem; }
    .hero-stats { gap: 24px; }
}