:root{--primary:#ff6b35;--primary-dark:#e85a2a;--primary-light:#ff8c5f;--secondary:#f7931e;--bg:#fafafa;--bg-alt:#f8f9fa;--bg-card:#ffffff;--bg-glass:rgba(255,255,255,.72);--bg-glass-strong:rgba(255,255,255,.88);--text:#2d3436;--text-secondary:#4a4a4a;--text-muted:#636e72;--text-light:#b2bec3;--border:#eeeeee;--border-light:#f0f0f0;--shadow-sm:0 2px 8px rgba(0,0,0,.04);--shadow-md:0 2px 12px rgba(0,0,0,.08);--shadow-lg:0 12px 40px rgba(0,0,0,.12);--shadow-glow:0 8px 32px rgba(255,107,53,.28);--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--radius-full:999px;--ease:cubic-bezier(.22,.61,.36,1);--ease-bounce:cubic-bezier(.34,1.56,.64,1);--transition:.35s var(--ease);--header-h:64px}
@media(prefers-color-scheme:dark){:root{--bg:#0f1115;--bg-alt:#161a20;--bg-card:#1a1f27;--bg-glass:rgba(26,31,39,.72);--bg-glass-strong:rgba(26,31,39,.9);--text:#e8eaed;--text-secondary:#c4c9d0;--text-muted:#9aa3ad;--text-light:#6b7280;--border:#2a313b;--border-light:#232931;--shadow-sm:0 2px 8px rgba(0,0,0,.3);--shadow-md:0 2px 12px rgba(0,0,0,.4);--shadow-lg:0 12px 40px rgba(0,0,0,.55);--shadow-glow:0 8px 32px rgba(255,107,53,.2)}}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px);-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.8;color:var(--text);background:var(--bg);font-size:16px;overflow-x:hidden;transition:background .4s var(--ease),color .4s var(--ease);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body::before{content:"";position:fixed;inset:0;z-index:-1;background:radial-gradient(ellipse 80% 50% at 50% -10%,rgba(255,107,53,.09),transparent 60%),radial-gradient(ellipse 60% 40% at 90% 10%,rgba(247,147,30,.07),transparent 55%);pointer-events:none}
::selection{background:var(--primary);color:#fff}
a{color:var(--primary);text-decoration:none;transition:color .25s var(--ease),opacity .25s var(--ease)}
a:hover{text-decoration:underline}
img,svg{max-width:100%;display:block}
ul,ol{list-style:none}
header{position:sticky;top:0;z-index:1000;background:var(--bg-glass);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);box-shadow:var(--shadow-md);border-bottom:1px solid rgba(255,107,53,.08);transition:background .4s var(--ease),box-shadow .4s var(--ease)}
.nav-wrap{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.logo{font-size:22px;font-weight:800;color:var(--primary);display:flex;align-items:center;gap:8px;letter-spacing:-.3px;transition:transform .4s var(--ease-bounce),filter .3s var(--ease)}
.logo:hover{text-decoration:none;transform:scale(1.04);filter:drop-shadow(0 4px 14px rgba(255,107,53,.4))}
.logo svg{width:32px;height:32px;flex-shrink:0;transition:transform .5s var(--ease-bounce)}
.logo:hover svg{transform:rotate(-8deg) scale(1.1)}
nav ul{display:flex;list-style:none;gap:24px;align-items:center}
nav a{color:var(--text);font-size:15px;font-weight:500;position:relative;padding:6px 2px;transition:color .25s var(--ease)}
nav a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:linear-gradient(90deg,var(--primary),var(--secondary));border-radius:2px;transform:scaleX(0);transform-origin:right;transition:transform .35s var(--ease)}
nav a:hover{color:var(--primary);text-decoration:none}
nav a:hover::after{transform:scaleX(1);transform-origin:left}
main{max-width:1200px;margin:0 auto;padding:20px;position:relative}
section{margin-bottom:40px;background:var(--bg-card);border-radius:var(--radius-lg);padding:36px;box-shadow:var(--shadow-sm);border:1px solid var(--border);position:relative;overflow:hidden;transition:background .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease),transform .4s var(--ease)}
section::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--secondary),transparent);opacity:0;transition:opacity .4s var(--ease)}
section:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
section:hover::before{opacity:1}
h1{font-size:28px;color:var(--text);margin-bottom:16px;line-height:1.4;font-weight:800;letter-spacing:-.4px}
h2{font-size:22px;color:var(--primary);margin-bottom:20px;border-left:4px solid var(--primary);padding-left:14px;font-weight:800;letter-spacing:-.2px;position:relative}
h2::after{content:"";position:absolute;left:-4px;top:0;bottom:0;width:4px;background:linear-gradient(180deg,var(--primary),var(--secondary));border-radius:4px;box-shadow:0 0 16px rgba(255,107,53,.5)}
h3{font-size:18px;color:var(--text);margin:22px 0 12px;font-weight:700;letter-spacing:-.1px}
h4{font-size:16px;color:var(--text-muted);margin:16px 0 8px;font-weight:600}
p{margin-bottom:12px;color:var(--text-secondary);line-height:1.85}
.banner{background:linear-gradient(135deg,#ff6b35 0%,#f7931e 50%,#ffab40 100%);border-radius:var(--radius-lg);padding:56px 40px;color:#fff;text-align:center;margin-bottom:40px;position:relative;overflow:hidden;box-shadow:var(--shadow-glow);isolation:isolate}
.banner::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 20%,rgba(255,255,255,.22),transparent 45%),radial-gradient(circle at 80% 80%,rgba(255,255,255,.16),transparent 45%);z-index:-1}
.banner::after{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:conic-gradient(from 0deg,transparent,rgba(255,255,255,.1),transparent 30%);animation:bannerSpin 18s linear infinite;z-index:-1;pointer-events:none}
@keyframes bannerSpin{to{transform:rotate(360deg)}}
.banner h1{color:#fff;font-size:34px;text-shadow:0 3px 20px rgba(0,0,0,.18);margin-bottom:14px;position:relative;z-index:1;animation:fadeUp .8s var(--ease) both}
.banner p{color:rgba(255,255,255,.94);font-size:16px;max-width:720px;margin:0 auto 24px;position:relative;z-index:1;animation:fadeUp .8s .12s var(--ease) both}
.banner .btn{position:relative;z-index:1;animation:fadeUp .8s .24s var(--ease) both}
@keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}
.btn{display:inline-block;background:#fff;color:var(--primary);padding:13px 34px;border-radius:var(--radius-full);font-weight:700;margin-top:8px;position:relative;overflow:hidden;box-shadow:0 6px 20px rgba(0,0,0,.14);transition:transform .35s var(--ease-bounce),box-shadow .35s var(--ease),color .3s var(--ease)}
.btn::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,var(--primary),var(--secondary));transform:translateY(101%);transition:transform .4s var(--ease);z-index:-1}
.btn:hover{color:#fff;text-decoration:none;transform:translateY(-3px) scale(1.03);box-shadow:0 12px 32px rgba(0,0,0,.22)}
.btn:hover::before{transform:translateY(0)}
.btn:active{transform:translateY(-1px) scale(.99)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.card{background:var(--bg-alt);border-radius:var(--radius-md);padding:24px;border:1px solid var(--border);position:relative;overflow:hidden;transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease),background .4s var(--ease)}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--secondary));transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease)}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(255,107,53,.35);background:var(--bg-card)}
.card:hover::before{transform:scaleX(1)}
.card h3{color:var(--primary);margin-top:0;transition:transform .35s var(--ease)}
.card:hover h3{transform:translateX(3px)}
.faq-item{border-bottom:1px solid var(--border);padding:16px 0;transition:padding .3s var(--ease)}
.faq-item:last-child{border-bottom:none}
.faq-item summary{cursor:pointer;font-weight:600;color:var(--text);font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:4px 0;transition:color .25s var(--ease);user-select:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--primary);font-size:22px;font-weight:700;flex-shrink:0;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(255,107,53,.1);transition:transform .35s var(--ease-bounce),background .3s var(--ease),color .3s var(--ease);line-height:1}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary:hover::after{background:rgba(255,107,53,.2);transform:scale(1.12)}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] summary::after{content:"−";background:var(--primary);color:#fff;transform:rotate(180deg)}
.faq-item p{margin-top:14px;color:var(--text-muted);padding-left:4px;animation:fadeUp .4s var(--ease) both}
.article-item{border-bottom:1px solid var(--border-light);padding:18px 0;position:relative;transition:padding-left .35s var(--ease),background .35s var(--ease)}
.article-item:last-child{border-bottom:none}
.article-item::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;background:linear-gradient(180deg,var(--primary),var(--secondary));border-radius:3px;opacity:0;transform:scaleY(0);transition:opacity .35s var(--ease),transform .35s var(--ease)}
.article-item:hover{padding-left:16px;background:linear-gradient(90deg,rgba(255,107,53,.05),transparent)}
.article-item:hover::before{opacity:1;transform:scaleY(1)}
.article-item h3{margin:0 0 6px;transition:color .25s var(--ease)}
.article-item:hover h3{color:var(--primary)}
.article-meta{font-size:13px;color:var(--text-light);margin-bottom:8px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.article-item a{font-weight:600;display:inline-flex;align-items:center;gap:4px;transition:gap .3s var(--ease)}
.article-item a:hover{gap:8px}
table{width:100%;border-collapse:separate;border-spacing:0;margin:18px 0;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);font-size:14px}
th,td{border-bottom:1px solid var(--border);padding:13px 16px;text-align:left;transition:background .25s var(--ease),color .25s var(--ease)}
th{background:linear-gradient(135deg,rgba(255,107,53,.12),rgba(247,147,30,.08));color:var(--primary);font-weight:700;white-space:nowrap}
tbody tr{background:var(--bg-card);transition:background .25s var(--ease),transform .25s var(--ease)}
tbody tr:hover{background:rgba(255,107,53,.06)}
tbody tr:last-child td{border-bottom:none}
td{color:var(--text-secondary)}
footer{background:linear-gradient(180deg,#2d3436,#232829);color:var(--text-light);padding:48px 20px 24px;margin-top:48px;position:relative;overflow:hidden}
footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--secondary),var(--primary))}
.footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:28px;position:relative;z-index:1}
footer h4{color:#fff;margin-bottom:14px;font-size:16px;font-weight:700;position:relative;padding-bottom:10px}
footer h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:linear-gradient(90deg,var(--primary),var(--secondary));border-radius:2px}
footer a{color:var(--text-light);display:block;margin-bottom:8px;font-size:14px;transition:color .25s var(--ease),transform .25s var(--ease),padding-left .25s var(--ease)}
footer a:hover{color:var(--primary);transform:translateX(4px);padding-left:4px;text-decoration:none}
footer p{color:var(--text-light);font-size:14px;margin-bottom:8px}
.copyright{text-align:center;margin-top:32px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:var(--text-light);position:relative;z-index:1}
.copyright p{margin-bottom:4px;font-size:13px}
.breadcrumb{font-size:14px;color:var(--text-light);margin-bottom:20px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;animation:fadeUp .6s var(--ease) both}
.breadcrumb a{color:var(--primary);font-weight:500;transition:transform .25s var(--ease)}
.breadcrumb a:hover{text-decoration:none;transform:translateX(-2px)}
.anchor-nav{background:var(--bg-glass-strong);backdrop-filter:blur(16px) saturate(160%);-webkit-backdrop-filter:blur(16px) saturate(160%);border-radius:var(--radius-md);padding:18px 20px;margin-bottom:28px;border:1px solid var(--border);box-shadow:var(--shadow-sm);animation:fadeUp .6s .1s var(--ease) both}
.anchor-nav strong{color:var(--primary);font-weight:700;margin-right:6px}
.anchor-nav a{display:inline-block;margin:4px 14px 4px 0;font-size:14px;padding:5px 12px;border-radius:var(--radius-full);background:rgba(255,107,53,.08);transition:background .3s var(--ease),color .3s var(--ease),transform .3s var(--ease-bounce),box-shadow .3s var(--ease)}
.anchor-nav a:hover{background:var(--primary);color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:0 6px 16px rgba(255,107,53,.35)}
.info-box{background:linear-gradient(135deg,rgba(255,107,53,.1),rgba(247,147,30,.06));border-left:4px solid var(--primary);padding:18px 20px;border-radius:0 var(--radius-md) var(--radius-md) 0;margin:18px 0;position:relative;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.info-box::before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(90deg,rgba(255,107,53,.06),transparent);transform:translateX(-100%);transition:transform .6s var(--ease)}
.info-box:hover{transform:translateX(4px);box-shadow:var(--shadow-md)}
.info-box:hover::before{transform:translateX(0)}
.info-box p{margin:0;color:var(--text-muted);position:relative;z-index:1}
.info-box strong{color:var(--primary)}
section ul{list-style:none;padding-left:0}
section ul li{padding:8px 0 8px 26px;position:relative;color:var(--text-secondary);transition:color .25s var(--ease),transform .25s var(--ease)}
section ul li::before{content:"";position:absolute;left:6px;top:18px;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));box-shadow:0 0 8px rgba(255,107,53,.5);transition:transform .3s var(--ease-bounce)}
section ul li:hover{color:var(--primary);transform:translateX(4px)}
section ul li:hover::before{transform:scale(1.4)}
section ul li a{color:var(--primary);font-weight:500}
section ul li a:hover{text-decoration:none;border-bottom:1px solid var(--primary)}
@keyframes revealUp{from{opacity:0;transform:translateY(36px)}to{opacity:1;transform:translateY(0)}}
@keyframes revealScale{from{opacity:0;transform:scale(.94)}to{opacity:1;transform:scale(1)}}
section,.banner,.anchor-nav,.breadcrumb{animation:revealUp .7s var(--ease) both}
section:nth-child(1){animation-delay:.05s}
section:nth-child(2){animation-delay:.1s}
section:nth-child(3){animation-delay:.15s}
section:nth-child(4){animation-delay:.2s}
section:nth-child(5){animation-delay:.25s}
section:nth-child(6){animation-delay:.3s}
section:nth-child(7){animation-delay:.35s}
section:nth-child(8){animation-delay:.4s}
section:nth-child(9){animation-delay:.45s}
section:nth-child(10){animation-delay:.5s}
section:nth-child(11){animation-delay:.55s}
section:nth-child(n+12){animation-delay:.6s}
.card,.grid .card{animation:revealScale .6s var(--ease) both}
.grid .card:nth-child(1){animation-delay:.1s}
.grid .card:nth-child(2){animation-delay:.18s}
.grid .card:nth-child(3){animation-delay:.26s}
.grid .card:nth-child(4){animation-delay:.34s}
.grid .card:nth-child(5){animation-delay:.42s}
.grid .card:nth-child(6){animation-delay:.5s}
.article-item{animation:revealUp .5s var(--ease) both}
.article-item:nth-child(1){animation-delay:.05s}
.article-item:nth-child(2){animation-delay:.1s}
.article-item:nth-child(3){animation-delay:.15s}
.article-item:nth-child(4){animation-delay:.2s}
.article-item:nth-child(5){animation-delay:.25s}
.article-item:nth-child(6){animation-delay:.3s}
.article-item:nth-child(7){animation-delay:.35s}
.article-item:nth-child(8){animation-delay:.4s}
.article-item:nth-child(9){animation-delay:.45s}
.article-item:nth-child(10){animation-delay:.5s}
.faq-item{animation:revealUp .5s var(--ease) both}
.faq-item:nth-child(1){animation-delay:.03s}
.faq-item:nth-child(2){animation-delay:.06s}
.faq-item:nth-child(3){animation-delay:.09s}
.faq-item:nth-child(4){animation-delay:.12s}
.faq-item:nth-child(5){animation-delay:.15s}
.faq-item:nth-child(6){animation-delay:.18s}
.faq-item:nth-child(7){animation-delay:.21s}
.faq-item:nth-child(8){animation-delay:.24s}
.faq-item:nth-child(9){animation-delay:.27s}
.faq-item:nth-child(10){animation-delay:.3s}
.faq-item:nth-child(11){animation-delay:.33s}
.faq-item:nth-child(12){animation-delay:.36s}
.faq-item:nth-child(13){animation-delay:.39s}
.faq-item:nth-child(14){animation-delay:.42s}
.faq-item:nth-child(15){animation-delay:.45s}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
@media(max-width:1024px){.nav-wrap{padding:0 16px}main{padding:16px}section{padding:28px}.banner{padding:44px 28px}.banner h1{font-size:28px}}
@media(max-width:768px){:root{--header-h:58px}
nav ul{display:none}
h1{font-size:22px}
h2{font-size:19px;padding-left:12px}
h3{font-size:17px}
.banner{padding:36px 20px;border-radius:var(--radius-md);margin-bottom:28px}
.banner h1{font-size:23px;line-height:1.45}
.banner p{font-size:15px}
.banner::after{animation:none}
section{padding:22px;border-radius:var(--radius-md);margin-bottom:24px}
section:hover{transform:none}
main{padding:12px}
.logo{font-size:19px}
.logo svg{width:28px;height:28px}
.grid{grid-template-columns:1fr;gap:16px}
.card{padding:20px}
table{font-size:13px}
th,td{padding:10px 12px}
.anchor-nav{padding:14px 16px}
.anchor-nav a{margin:4px 8px 4px 0;font-size:13px;padding:4px 10px}
.info-box{padding:14px 16px}
footer{padding:36px 16px 20px;margin-top:32px}
.footer-inner{gap:22px}
.btn{padding:11px 26px;font-size:15px}
.article-item:hover{padding-left:8px;background:none}
.article-item:hover::before{opacity:0}
}
@media(max-width:480px){.banner h1{font-size:20px}
.banner{padding:28px 16px}
section{padding:18px}
h2{font-size:17px}
h3{font-size:16px}
p{font-size:15px}
th,td{padding:8px 10px;font-size:12px}
th{white-space:normal}
.copyright{font-size:12px}
}
@media(hover:none){.card:hover,.btn:hover,section:hover{transform:none}
.card:hover{box-shadow:var(--shadow-sm)}
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){header{background:var(--bg-card)}
.anchor-nav{background:var(--bg-card)}
}
@media print{header,footer,.anchor-nav,.banner::after{display:none}
body{background:#fff;color:#000}
section{box-shadow:none;border:1px solid #ddd;page-break-inside:avoid}
a{color:#000;text-decoration:underline}
}