:root{--primary:#597EF7;--deep:#1D2B5F;--text:#222;--muted:#5B647A;--page:#F6F8FF;--soft:#ECF0FF;--sky:#EAF7FF;--card:#fff;--border:rgba(89,126,247,.16);--shadow:0 16px 40px rgba(89,126,247,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--page);color:var(--text);line-height:1.78;overflow-x:hidden}a{color:inherit}img{max-width:100%}.site-header{position:sticky;top:0;z-index:9999;width:100%;background:linear-gradient(135deg,#F7F9FF 0%,#ECF0FF 52%,#EAF7FF 100%);box-shadow:0 8px 24px rgba(89,126,247,.10);backdrop-filter:blur(12px)}.header-inner{max-width:1200px;min-height:72px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}.site-logo{display:flex;align-items:center;min-width:128px;text-decoration:none}.site-logo img,.drawer-logo img,.footer-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}.logo-text{font-size:22px;font-weight:900;color:var(--deep);letter-spacing:.02em}.nav-core{display:flex;align-items:center;gap:8px;white-space:nowrap;flex-wrap:nowrap}.nav-core a{color:#1D2B5F;padding:8px 10px;border-radius:999px;font-weight:700;text-decoration:none}.nav-core a.is-current,.nav-core a:hover{background:rgba(255,255,255,.82);color:#597EF7}.header-actions{display:flex;align-items:center;gap:10px;white-space:nowrap}.header-login{font-weight:700;color:var(--deep);text-decoration:none;padding:8px 2px}.main-btn{position:relative;overflow:hidden;isolation:isolate;display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:96px;padding:0 20px;background:linear-gradient(135deg,#7580EE 0%,#597EF7 48%,#7AC4F5 100%);color:#FFFFFF;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 24px rgba(89,126,247,.28)}.main-btn::before{content:"";position:absolute;inset:-2px;border-radius:inherit;background:linear-gradient(120deg,transparent 0%,rgba(255,255,255,.85) 35%,transparent 70%);transform:translateX(-120%);animation:btnShine 2.4s 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20px}.reading{max-width:860px;margin:0 auto}.section{padding:68px 0}.section.compact{padding:46px 0}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}.eyebrow{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--primary);text-transform:uppercase}.section h1,.hero h1{font-size:clamp(38px,5vw,50px);line-height:1.16;color:var(--deep);margin:10px 0 18px;letter-spacing:-.02em}.section h2{font-size:clamp(25px,3vw,34px);line-height:1.25;color:var(--deep);margin:0 0 16px}.section h3{font-size:20px;line-height:1.35;color:var(--deep);margin:0 0 10px}.lead{font-size:18px;color:#404A65;max-width:820px}.muted{color:var(--muted)}.hero{padding:52px 0 32px}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center}.hero-copy{background:linear-gradient(135deg,#fff,#F0F5FF);border:1px solid var(--border);border-radius:18px;padding:34px;box-shadow:var(--shadow)}.hero-copy p{font-size:17px;color:#4A5672}.hero-actions{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.text-link{color:var(--primary);font-weight:800;text-decoration:none}.text-link:hover{text-decoration:underline}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:16px;background:#ECF0FF;aspect-ratio:16/9}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}.media-placeholder{display:grid;place-items:center;color:#7B8499;font-weight:700;border:1px dashed rgba(89,126,247,.22)}.media-card{height:172px;aspect-ratio:auto}.media-feature{height:244px;aspect-ratio:auto}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:22px;box-shadow:var(--shadow);min-width:0}.card p:last-child{margin-bottom:0}.card-link{text-decoration:none;display:block}.card-link:hover{transform:translateY(-2px)}.card-link{transition:.2s ease}.pill-row{display:flex;gap:10px;overflow-x:auto;padding:4px 0 10px;scrollbar-width:thin}.pill-row a{flex:0 0 auto;background:#fff;border:1px solid var(--border);border-radius:999px;padding:8px 14px;text-decoration:none;color:var(--deep);font-weight:700}.pill-row a:hover{color:var(--primary);border-color:rgba(89,126,247,.38)}.notice-bar{background:linear-gradient(90deg,#ECF0FF,#fff,#EAF7FF);border:1px solid var(--border);border-radius:16px;padding:18px 22px;color:#34405C}.topic-grid .card{padding:18px}.topic-grid h3{font-size:18px}.topic-grid p{font-size:14px;color:var(--muted);margin:0}.split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}.split.reverse .split-media{order:2}.list-clean{margin:0;padding-left:1.2em}.list-clean 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8px}.banner{background:linear-gradient(135deg,#1D2B5F,#304D92);border-radius:18px;color:#fff;padding:28px;display:flex;align-items:center;justify-content:space-between;gap:24px}.banner h2{color:#fff;margin:0 0 6px}.banner p{margin:0;color:#DCE7FF}.slider{position:relative;background:#101827;border-radius:18px;overflow:hidden;height:360px}.slides,.slide{height:100%}.slide{display:none;padding:16px}.slide.active{display:block}.slide .media{height:100%;aspect-ratio:auto;background:#101827;border-radius:12px}.slide .media-placeholder{color:#CBD6F0;border-color:rgba(255,255,255,.15)}.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border:0;border-radius:50%;background:rgba(255,255,255,.9);color:#1D2B5F;font-size:26px;cursor:pointer}.slider-prev{left:16px}.slider-next{right:16px}.slider-dots{position:absolute;left:0;right:0;bottom:14px;display:flex;justify-content:center;gap:8px}.slider-dot{width:9px;height:9px;padding:0;border-radius:50%;border:0;background:rgba(255,255,255,.45);cursor:pointer}.slider-dot.active{background:#fff}.float-tools{position:fixed;right:12px;top:50%;transform:translateY(-50%);z-index:9000;width:92px;background:#fff;border:1px solid var(--border);border-radius:16px;padding:8px;box-shadow:var(--shadow);display:grid;gap:6px}.float-tools a,.float-tools button{border:0;background:#fff;color:var(--primary);font-size:12px;text-decoration:none;text-align:center;padding:9px 5px;border-radius:10px;font-weight:800;cursor:pointer}.float-tools .float-main{background:linear-gradient(135deg,#7580EE,#597EF7 48%,#7AC4F5);color:#fff;box-shadow:0 0 16px rgba(89,126,247,.28)}.site-footer{background:#1F1F1F;color:#D7DCE8;margin-top:36px}.footer-grid{max-width:1200px;margin:0 auto;padding:48px 20px 34px;display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:34px}.footer-grid h2{font-size:16px;color:#fff;margin:0 0 12px}.footer-grid a{display:block;color:#D7DCE8;text-decoration:none;margin:7px 0}.footer-grid a:hover{color:#fff}.footer-brand p{font-size:14px;color:#B8C0D0}.footer-bottom{border-top:1px solid #343434;max-width:1200px;margin:0 auto;padding:20px;color:#AEB6C7;font-size:13px;text-align:center}.footer-logo{display:inline-flex}.footer-logo img{filter:brightness(1.2)}.mobile-bottom{display:none}.mobile-drawer{position:fixed;left:0;top:0;bottom:0;width:min(84vw,320px);background:#fff;z-index:12000;transform:translateX(-104%);transition:.22s ease;box-shadow:18px 0 40px rgba(24,38,70,.18);overflow:hidden}.mobile-drawer.open{transform:none}.drawer-head{height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--border)}.drawer-close{width:40px;height:40px;border:0;background:#F0F4FF;border-radius:12px;font-size:26px;color:var(--deep)}.drawer-scroll{height:calc(100% - 72px);overflow-y:auto;padding:16px 18px 30px}.drawer-scroll section{margin-bottom:20px}.drawer-scroll h2{font-size:13px;color:#8790A5;margin:0 0 8px;text-transform:uppercase;letter-spacing:.08em}.drawer-scroll a{display:block;padding:8px 0;text-decoration:none;color:var(--deep);font-weight:700}.drawer-mask{position:fixed;inset:0;background:rgba(16,24,39,.42);z-index:11000}.drawer-open{overflow:hidden}.no-js .mobile-drawer{display:none}.tag{display:inline-block;padding:5px 9px;border-radius:999px;background:#ECF0FF;color:var(--primary);font-size:12px;font-weight:800}.table-like{display:grid;gap:1px;background:var(--border);border:1px solid var(--border);border-radius:16px;overflow:hidden}.table-row{display:grid;grid-template-columns:180px 1fr;background:#fff}.table-row strong,.table-row span{padding:16px}.table-row strong{background:#F2F5FF;color:var(--deep)}
@media(max-width:1280px){.float-tools{display:none}}
@media(max-width:1020px){.nav-core{gap:2px}.nav-core a{padding:8px 7px;font-size:14px}.header-actions .header-login{display:none}.grid-4{grid-template-columns:repeat(3,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:900px){body{padding-bottom:66px}.site-header{position:sticky}.header-inner{min-height:64px;padding:0 14px;display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:10px}.menu-btn{display:block}.site-logo{justify-self:center;min-width:0}.site-logo img{height:34px;max-width:148px}.site-logo .logo-text{font-size:19px}.nav-core{display:none}.header-actions{justify-self:end}.header-actions .header-login{display:none}.header-actions .main-btn{height:40px;min-width:86px;padding:0 14px;font-size:14px}.channel-strip{display:none}.section{padding:48px 0}.section.compact{padding:36px 0}.container{padding:0 16px}.hero{padding:34px 0 20px}.hero-grid,.split,.grid-3{grid-template-columns:1fr}.split.reverse .split-media{order:initial}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.grid-2{grid-template-columns:1fr}.hero-copy{padding:24px}.section h1,.hero h1{font-size:clamp(28px,8vw,34px)}.lead{font-size:16px}.section-head{align-items:flex-start;flex-direction:column}.slider{height:210px}.slider-arrow{width:36px;height:36px}.media-feature{height:220px}.media-card{height:160px}.mini-index{grid-template-columns:repeat(2,minmax(0,1fr))}.banner{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr;padding:40px 16px 24px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;height:58px;background:#fff;border-top:1px solid var(--border);z-index:9500;display:grid;grid-template-columns:repeat(4,1fr);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:grid;place-items:center;text-decoration:none;color:var(--deep);font-size:13px;font-weight:800}.table-row{grid-template-columns:1fr}.table-row strong{padding-bottom:6px}.table-row span{padding-top:8px}.js .mobile-drawer{display:block}.no-js .mobile-drawer{display:block;position:static;transform:none;width:100%;height:auto;box-shadow:none;border-bottom:1px solid var(--border)}.no-js .drawer-head{display:none}.no-js .drawer-scroll{height:auto;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.no-js .drawer-scroll section{margin:0}.no-js .site-main{padding-top:0}}
@media(max-width:390px){.header-inner{grid-template-columns:40px minmax(0,1fr) auto;padding:0 10px;gap:6px}.menu-btn{width:40px}.site-logo img{height:30px;max-width:124px}.site-logo .logo-text{font-size:18px}.header-actions .main-btn{min-width:78px;padding:0 11px;font-size:13px}.grid-4{gap:10px}.topic-grid .card{padding:14px}.topic-grid h3{font-size:16px}.slider{height:190px}.mini-index{grid-template-columns:1fr 1fr}}