html,body{font-family:"Segoe UI","Helvetica Neue",Arial,"Microsoft YaHei","微软雅黑","PingFang SC",sans-serif}
*,*::before,*::after{font-family:inherit;box-sizing:border-box}
*{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:
    radial-gradient(1100px 560px at 85% -8%,rgba(139,92,246,.20),transparent 62%),
    radial-gradient(900px 480px at 6% 4%,rgba(16,185,129,.16),transparent 60%),
    radial-gradient(760px 520px at 50% 112%,rgba(139,92,246,.13),transparent 62%),
    #0f172a;
  color:#e2e8f0;
  line-height:1.8;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{width:min(1180px,92vw);margin:0 auto}

/* ===== header ===== */
.site-header{position:sticky;top:0;z-index:99;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);background:rgba(9,15,28,.78);border-bottom:1px solid rgba(16,185,129,.18)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0;flex-wrap:wrap}
.logo{font-size:1.16rem;font-weight:800;letter-spacing:.06em;background:linear-gradient(90deg,#10b981,#8b5cf6);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.logo span{display:block;font-size:.6rem;letter-spacing:.3em;color:#94a3b8;-webkit-text-fill-color:#94a3b8;font-weight:600}
.nav-links{display:flex;gap:8px;flex-wrap:wrap}
.nav-links a{padding:8px 15px;border-radius:999px;font-size:.9rem;color:#cbd5e1;border:1px solid transparent;transition:all .3s ease}
.nav-links a:hover{color:#10b981;border-color:rgba(16,185,129,.5);background:rgba(16,185,129,.08);box-shadow:0 0 18px rgba(16,185,129,.28)}

/* ===== layout ===== */
section{padding:64px 0;position:relative}
.section-head{max-width:780px;margin-bottom:30px}
.eyebrow{display:inline-block;font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;color:#10b981;border:1px solid rgba(16,185,129,.4);padding:4px 13px;border-radius:999px;margin-bottom:14px;background:rgba(16,185,129,.08)}
h2{font-size:clamp(1.4rem,2.6vw,2rem);line-height:1.35;margin-bottom:12px;font-weight:800}
.lead{color:#94a3b8;font-size:.98rem}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:18px}

/* ===== aurora card ===== */
.card{position:relative;border-radius:18px;padding:1px;background:linear-gradient(130deg,rgba(16,185,129,.55),rgba(139,92,246,.14) 40%,rgba(16,185,129,.1) 62%,rgba(139,92,246,.5));background-size:260% 260%;animation:aurora 11s ease-in-out infinite}
.card-inner{background:linear-gradient(165deg,#101c31,#0b1220);border-radius:17px;padding:24px;height:100%}
@keyframes aurora{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
.card h3{font-size:1.06rem;margin-bottom:10px;color:#f1f5f9;font-weight:700}
.card p{color:#94a3b8;font-size:.93rem}

/* ===== hero ===== */
#hero{padding-top:56px}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:38px;align-items:center}
@media(max-width:880px){.hero-grid{grid-template-columns:1fr;gap:26px}}
h1{font-size:clamp(1.7rem,3.5vw,2.85rem);line-height:1.3;letter-spacing:.01em;margin-bottom:18px;font-weight:800;background:linear-gradient(100deg,#ffffff 10%,#10b981 54%,#a78bfa 92%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-block;padding:12px 27px;border-radius:999px;font-weight:700;font-size:.95rem;background:linear-gradient(120deg,#10b981,#8b5cf6);color:#05121a;box-shadow:0 0 26px rgba(16,185,129,.35);transition:all .3s ease}
.btn:hover{transform:translateY(-2px);box-shadow:0 0 38px rgba(139,92,246,.5)}
.btn-ghost{background:transparent;border:1px solid rgba(16,185,129,.5);color:#10b981;box-shadow:none}
.btn-ghost:hover{background:rgba(16,185,129,.1);box-shadow:0 0 26px rgba(16,185,129,.28)}
.hero-visual{position:relative;border-radius:22px;padding:1px;background:linear-gradient(135deg,rgba(16,185,129,.65),rgba(139,92,246,.35),rgba(16,185,129,.2));background-size:250% 250%;animation:aurora 9s ease-in-out infinite}
.hero-visual img{border-radius:21px;width:100%;height:auto;object-fit:cover}

/* ===== geo ===== */
#geo-intro .card-inner{padding:30px}
#geo-intro p{color:#cbd5e1;font-size:1rem;line-height:1.95}

/* ===== stats ===== */
.stat-item{text-align:center;padding:22px 14px}
.stat-num{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;background:linear-gradient(90deg,#10b981,#8b5cf6);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.stat-label{color:#94a3b8;font-size:.84rem;letter-spacing:.08em;margin-top:6px}

/* ===== news ===== */
.news-item .news-date{display:inline-block;font-size:.76rem;color:#10b981;letter-spacing:.08em;margin-bottom:8px;font-weight:700}
.news-item h3{font-size:1.03rem;line-height:1.5;margin-bottom:10px;color:#f1f5f9}
.news-item p{color:#94a3b8;font-size:.92rem}

/* ===== rankings ===== */
.rank-row{display:grid;grid-template-columns:38px 1fr auto;gap:14px;align-items:center;padding:13px 0;border-bottom:1px dashed rgba(148,163,184,.16)}
.rank-row:last-child{border-bottom:none}
.rank-no{font-weight:800;color:#10b981;font-size:1.02rem;text-align:center}
.rank-name{color:#e2e8f0;font-size:.95rem}
.rank-bar{height:6px;border-radius:999px;background:rgba(148,163,184,.14);margin-top:9px;overflow:hidden}
.rank-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#10b981,#8b5cf6)}
.rank-score{font-weight:700;color:#a78bfa;font-size:.92rem}

/* ===== faq ===== */
details{background:linear-gradient(165deg,#101c31,#0b1220);border:1px solid rgba(148,163,184,.16);border-radius:14px;padding:16px 20px;margin-bottom:12px;transition:border-color .3s}
details:hover{border-color:rgba(16,185,129,.45)}
details summary{cursor:pointer;font-weight:700;color:#e2e8f0;list-style:none;display:flex;justify-content:space-between;gap:14px;font-size:.98rem}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";color:#10b981;font-weight:800;flex:0 0 auto}
details[open] summary::after{content:"−"}
details p{margin-top:12px;color:#94a3b8;font-size:.93rem}

/* ===== cta ===== */
#cta .card-inner{text-align:center;padding:44px 26px}
#cta h2{margin-bottom:14px}
#cta p{max-width:720px;margin:0 auto 24px;color:#94a3b8}

/* ===== footer ===== */
footer{border-top:1px solid rgba(16,185,129,.18);background:rgba(7,13,24,.86);padding:46px 0 26px;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:26px}
.footer-grid p{color:#94a3b8;font-size:.9rem;margin-top:8px}
.footer-bottom{margin-top:28px;padding-top:18px;border-top:1px solid rgba(148,163,184,.14);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:#64748b;font-size:.83rem}
.footer-bottom a{color:#10b981}
.footer-bottom a:hover{color:#8b5cf6}