/* ============================================================ 星叶AI · 全站样式 主题：light（默认）/ dark，通过 切换 ============================================================ */ :root{ --bg:#fbfcff; --bg-soft:#f1f5fb; --card:#ffffff; --text:#0c1526; --text-soft:#566880; --text-faint:#8a9bb2; --line:#e3e9f3; --line-strong:#d2dce9; --primary:#4f5df5; --primary-deep:#3b49e8; --cyan:#0ea5e9; --grad:linear-gradient(120deg,#5b6cff 0%,#22d3ee 100%); --grad-soft:linear-gradient(120deg,rgba(91,108,255,.08),rgba(34,211,238,.08)); --glow:rgba(91,108,255,.16); --shadow-sm:0 2px 10px rgba(15,28,55,.06); --shadow:0 14px 36px rgba(15,28,55,.09); --shadow-lg:0 30px 70px rgba(15,28,55,.16); --radius:18px; --radius-sm:12px; --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif; --mono:"SFMono-Regular",ui-monospace,"Cascadia Code",Consolas,"Courier New",monospace; --header-h:68px; } html[data-theme="dark"]{ --bg:#060a13; --bg-soft:#0a101d; --card:#0c1422; --text:#e9effa; --text-soft:#9db0c8; --text-faint:#647a94; --line:rgba(148,163,184,.15); --line-strong:rgba(148,163,184,.27); --primary:#7b8aff; --primary-deep:#93a0ff; --grad:linear-gradient(120deg,#7b8aff 0%,#22d3ee 100%); --grad-soft:linear-gradient(120deg,rgba(123,138,255,.12),rgba(34,211,238,.12)); --glow:rgba(123,138,255,.22); --shadow-sm:0 2px 12px rgba(0,0,0,.32); --shadow:0 14px 38px rgba(0,0,0,.42); --shadow-lg:0 30px 72px rgba(0,0,0,.55); } *{margin:0;padding:0;box-sizing:border-box} html{scroll-behavior:smooth} body{ font-family:var(--font); background:var(--bg); color:var(--text); font-size:16px; line-height:1.8; -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility; transition:background-color .35s ease,color .35s ease; } img{max-width:100%;display:block} a{color:inherit;text-decoration:none} ul,ol{list-style:none} button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit} ::selection{background:rgba(91,108,255,.22)} .container{width:min(1120px,92%);margin:0 auto} .sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0} :focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px} /* ============ 顶栏 ============ */ .site-header{ position:sticky;top:0;z-index:50; background:color-mix(in srgb,var(--bg) 82%,transparent); -webkit-backdrop-filter:blur(14px); backdrop-filter:blur(14px); border-bottom:1px solid var(--line); } .header-inner{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:24px} .logo{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:800;letter-spacing:.01em} .logo-mark{ width:34px;height:34px;border-radius:10px; background:var(--grad);color:#fff; display:inline-flex;align-items:center;justify-content:center; box-shadow:0 6px 18px var(--glow); flex:none; } .logo-mark svg{width:19px;height:19px} .logo-ai{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent} .site-nav{display:flex;align-items:center;gap:6px} .nav-link{ padding:8px 14px;border-radius:10px;font-size:15px;color:var(--text-soft); transition:color .2s ease,background .2s ease; } .nav-link:hover{color:var(--text);background:var(--grad-soft)} .nav-link.active{color:var(--text);font-weight:600;background:var(--grad-soft)} .nav-link.active::after{content:"";display:block;height:2px;width:18px;margin:2px auto 0;background:var(--grad);border-radius:2px} .nav-cta{ margin-left:10px;padding:9px 20px;border-radius:999px; background:var(--grad);color:#fff;font-size:14px;font-weight:600; box-shadow:0 8px 20px var(--glow); transition:transform .2s ease,box-shadow .2s ease,filter .2s ease; } .nav-cta:hover{transform:translateY(-1px);box-shadow:0 12px 26px var(--glow);filter:brightness(1.05)} .nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center} .nav-toggle svg{width:20px;height:20px} /* ============ 按钮 ============ */ .btn{ display:inline-flex;align-items:center;gap:8px; padding:13px 28px;border-radius:999px;font-size:15px;font-weight:600; transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,border-color .2s ease; } .btn svg{width:17px;height:17px} .btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px var(--glow)} .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px var(--glow);filter:brightness(1.05)} .btn-ghost{border:1px solid var(--line-strong);color:var(--text);background:var(--card)} .btn-ghost:hover{transform:translateY(-2px);border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow-sm)} /* ============ Hero ============ */ .hero{ position:relative;overflow:hidden; padding:92px 0 110px; border-bottom:1px solid var(--line); } .hero-bg{position:absolute;inset:0;pointer-events:none;overflow:hidden} .hero-grid{ position:absolute;inset:0; background-image: linear-gradient(var(--line) 1px,transparent 1px), linear-gradient(90deg,var(--line) 1px,transparent 1px); background-size:56px 56px; -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 0%,#000 30%,transparent 75%); mask-image:radial-gradient(ellipse 90% 70% at 50% 0%,#000 30%,transparent 75%); opacity:.55; } .orb{ position:absolute;border-radius:50%;filter:blur(70px);opacity:.55; animation:drift 14s ease-in-out infinite alternate; } .orb-a{width:480px;height:480px;left:-120px;top:-140px;background:radial-gradient(circle,rgba(91,108,255,.5),transparent 65%)} .orb-b{width:420px;height:420px;right:-100px;top:60px;background:radial-gradient(circle,rgba(34,211,238,.42),transparent 65%);animation-delay:-6s} @keyframes drift{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(40px,26px,0) scale(1.08)}} .hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center} .hero-badge{ display:inline-flex;align-items:center;gap:8px; padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600; color:var(--primary);background:var(--grad-soft);border:1px solid color-mix(in srgb,var(--primary) 28%,transparent); letter-spacing:.02em; } .hero-badge .pulse{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 0 var(--glow);animation:ping 2.4s ease-out infinite} @keyframes ping{0%{box-shadow:0 0 0 0 var(--glow)}70%{box-shadow:0 0 0 9px transparent}100%{box-shadow:0 0 0 0 transparent}} .hero-title{ margin:22px 0 18px; font-size:clamp(34px,5vw,54px); line-height:1.18;font-weight:800;letter-spacing:-.02em; } .hero-title .grad{ background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent; } .hero-sub{font-size:17px;color:var(--text-soft);max-width:34em;margin-bottom:34px} .hero-actions{display:flex;gap:14px;flex-wrap:wrap} .hero-note{margin-top:18px;font-size:13px;color:var(--text-faint)} /* Hero 对话演示卡 */ .chat-card{ background:var(--card);border:1px solid var(--line);border-radius:20px; box-shadow:var(--shadow-lg);overflow:hidden; transform:perspective(1200px) rotateY(-4deg) rotateX(1deg); transition:transform .4s ease,box-shadow .4s ease; } .chat-card:hover{transform:perspective(1200px) rotateY(0) rotateX(0)} .chat-head{display:flex;align-items:center;gap:8px;padding:14px 18px;border-bottom:1px solid var(--line);background:var(--bg-soft)} .chat-head .dot{width:11px;height:11px;border-radius:50%} .chat-head .dot:nth-child(1){background:#ff5f57} .chat-head .dot:nth-child(2){background:#febc2e} .chat-head .dot:nth-child(3){background:#28c840} .chat-title{margin-left:10px;font-size:13px;font-weight:600;color:var(--text-soft);font-family:var(--mono)} .chat-body{padding:22px 20px 24px;display:flex;flex-direction:column;gap:14px} .msg{max-width:86%;padding:11px 15px;border-radius:14px;font-size:14.5px;line-height:1.65;animation:rise .5s ease both} .msg.user{align-self:flex-end;background:var(--grad);color:#fff;border-bottom-right-radius:4px;box-shadow:0 8px 20px var(--glow)} .msg.ai{align-self:flex-start;background:var(--bg-soft);border:1px solid var(--line);border-bottom-left-radius:4px} .msg .label{display:block;font-size:11px;color:var(--text-faint);font-family:var(--mono);margin-bottom:3px;letter-spacing:.05em} @keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}} .typing{display:inline-flex;gap:5px;align-items:center;padding:14px 16px} .typing i{width:7px;height:7px;border-radius:50%;background:var(--text-faint);animation:blink 1.2s ease-in-out infinite} .typing i:nth-child(2){animation-delay:.18s} .typing i:nth-child(3){animation-delay:.36s} @keyframes blink{0%,80%,100%{opacity:.25;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}} /* ============ 区块通用 ============ */ .section{padding:84px 0} .section.soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)} .section-head{max-width:640px;margin:0 auto 52px;text-align:center} .eyebrow{ display:inline-block;margin-bottom:14px;font-size:14px;font-weight:700;letter-spacing:.14em; color:var(--primary);font-family:var(--mono); } .section-title{font-size:clamp(26px,3.4vw,36px);font-weight:800;letter-spacing:-.015em;line-height:1.25} .section-sub{margin-top:14px;color:var(--text-soft);font-size:16px} /* 特性卡片 */ .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px} .feature-card{ background:var(--card);border:1px solid var(--line);border-radius:var(--radius); padding:28px 26px;position:relative;overflow:hidden; transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease; } .feature-card::before{ content:"";position:absolute;inset:0 0 auto 0;height:3px; background:var(--grad);opacity:0;transition:opacity .25s ease; } .feature-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow)} .feature-card:hover::before{opacity:1} .feature-icon{ width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center; background:var(--grad-soft);color:var(--primary);margin-bottom:18px;border:1px solid var(--line); } .feature-icon svg{width:23px;height:23px} .feature-card h4{font-size:18px;font-weight:700;margin-bottom:8px} .feature-card p{font-size:14.5px;color:var(--text-soft)} /* 场景带 */ .scene-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px} .scene-item{ border:1px solid var(--line);border-radius:var(--radius-sm);padding:20px 18px; background:var(--card);text-align:center;transition:transform .25s ease,border-color .25s ease; } .scene-item:hover{transform:translateY(-4px);border-color:var(--primary)} .scene-num{font-family:var(--mono);font-size:13px;color:var(--text-faint);letter-spacing:.08em} .scene-item h4{font-size:16px;font-weight:700;margin:8px 0 6px} .scene-item p{font-size:14px;color:var(--text-soft)} /* 资讯卡片 */ .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px} .news-card{ display:flex;flex-direction:column;gap:12px; background:var(--card);border:1px solid var(--line);border-radius:var(--radius); padding:26px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease; } .news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--line-strong)} .news-meta{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-faint);font-family:var(--mono)} .news-tag{color:var(--primary);background:var(--grad-soft);padding:2px 10px;border-radius:999px;font-family:var(--font)} .news-card h4{font-size:17px;font-weight:700;line-height:1.45} .news-card p{font-size:14px;color:var(--text-soft);flex:1} .news-more{font-size:13.5px;font-weight:600;color:var(--primary)} /* CTA 带 */ .cta-band{ border:1px solid var(--line);border-radius:24px; background:var(--grad-soft); padding:56px 40px;text-align:center;position:relative;overflow:hidden; } .cta-band h2{font-size:clamp(24px,3vw,32px);font-weight:800;letter-spacing:-.01em} .cta-band p{color:var(--text-soft);margin:12px auto 28px;max-width:34em} /* ============ 内页页首 ============ */ .page-hero{padding:66px 0 54px;position:relative;overflow:hidden;border-bottom:1px solid var(--line)} .page-hero .hero-grid{opacity:.4} .page-hero h1{font-size:clamp(28px,4vw,42px);font-weight:800;letter-spacing:-.015em;line-height:1.2;position:relative} .page-hero .page-sub{margin-top:14px;color:var(--text-soft);max-width:42em;position:relative} /* ============ 正文内容 ============ */ .content{max-width:760px} .content h2{font-size:23px;font-weight:800;margin:44px 0 16px;letter-spacing:-.01em;display:flex;align-items:center;gap:12px} .content h2::before{content:"";width:5px;height:22px;border-radius:3px;background:var(--grad);flex:none} .content p{margin:14px 0;color:var(--text-soft)} .content strong{color:var(--text);font-weight:700} .content ul,.content ol{margin:14px 0 14px 4px;color:var(--text-soft)} .content ul li{padding-left:24px;position:relative;margin:9px 0} .content ul li::before{content:"";position:absolute;left:4px;top:11px;width:7px;height:7px;border-radius:2px;background:var(--grad);transform:rotate(45deg)} .content ol{counter-reset:step} .content ol li{counter-increment:step;padding-left:30px;position:relative;margin:9px 0} .content ol li::before{ content:counter(step);position:absolute;left:0;top:2px;width:22px;height:22px;border-radius:50%; background:var(--grad-soft);color:var(--primary);font-size:12.5px;font-weight:700; display:flex;align-items:center;justify-content:center;font-family:var(--mono); } .content .lead{font-size:17.5px;color:var(--text);line-height:1.9} .content .note{ border:1px solid var(--line);border-left:3px solid var(--primary); background:var(--grad-soft);border-radius:var(--radius-sm);padding:16px 18px;margin:22px 0; font-size:14.5px;color:var(--text-soft); } .article-meta{ display:flex;flex-wrap:wrap;gap:12px;align-items:center; margin-top:16px;padding:12px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line); font-size:14px;color:var(--text-faint);font-family:var(--mono); } /* FAQ */ .faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px} .faq details{ background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm); overflow:hidden;transition:border-color .2s ease; } .faq details[open]{border-color:var(--line-strong)} .faq summary{ list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px; padding:20px 22px;cursor:pointer;font-size:16px;font-weight:600; } .faq summary::-webkit-details-marker{display:none} .faq summary .q-mark{color:var(--primary);font-family:var(--mono);font-size:14px;flex:none} .faq summary .chev{ width:18px;height:18px;flex:none;color:var(--text-faint); transition:transform .25s ease; } .faq details[open] .chev{transform:rotate(180deg)} .faq .a-body{padding:0 22px 20px 52px;color:var(--text-soft);font-size:14.5px} .faq .a-body p{margin:6px 0} /* 步骤条（新手入门） */ .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:step;margin-top:6px} .step{ background:var(--card);border:1px solid var(--line);border-radius:var(--radius); padding:26px 24px;position:relative; } .step::before{ counter-increment:step;content:"0" counter(step); font-family:var(--mono);font-size:13px;font-weight:700;letter-spacing:.1em; color:var(--primary);background:var(--grad-soft);border:1px solid var(--line); padding:4px 12px;border-radius:999px;display:inline-block;margin-bottom:16px; } .step h4{font-size:17px;font-weight:700;margin-bottom:8px} .step p{font-size:14px;color:var(--text-soft)} /* ============ 页脚 ============ */ .site-footer{border-top:1px solid var(--line);background:var(--bg-soft);padding:60px 0 30px;margin-top:0} .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:36px} .footer-brand .logo{margin-bottom:14px} .footer-brand p{font-size:14px;color:var(--text-soft);max-width:26em} .footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.04em} .footer-col li{margin:9px 0} .footer-col a{font-size:14px;color:var(--text-soft);transition:color .2s ease} .footer-col a:hover{color:var(--primary)} .footer-friend{ display:inline-flex;align-items:center;gap:7px; border:1px solid var(--line);border-radius:10px;padding:7px 14px; background:var(--card);font-size:14px;color:var(--text-soft); transition:border-color .2s ease,color .2s ease,transform .2s ease; } .footer-friend:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)} .footer-friend svg{width:14px;height:14px} .footer-bottom{ margin-top:44px;padding-top:22px;border-top:1px solid var(--line); display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between; font-size:13.5px;color:var(--text-faint); } /* ============ 主题开关 ============ */ .theme-switch{ position:fixed;right:22px;bottom:24px;z-index:60; width:76px;height:42px;border-radius:999px; background:var(--card);border:1px solid var(--line-strong); box-shadow:var(--shadow); display:flex;align-items:center;justify-content:space-between;padding:0 11px; transition:background .35s ease,border-color .35s ease; } .theme-switch svg{width:17px;height:17px;color:var(--text-faint);z-index:1;pointer-events:none} .theme-switch .sun{color:#f59e0b} .theme-switch .moon{color:#7b8aff} .theme-knob{ position:absolute;left:5px;top:5px;width:32px;height:32px;border-radius:50%; background:var(--grad);box-shadow:0 4px 12px var(--glow); transition:transform .32s cubic-bezier(.34,1.4,.64,1); } html[data-theme="dark"] .theme-knob{transform:translateX(34px)} .theme-hint{ position:fixed;right:22px;bottom:70px;z-index:60; background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow); border-radius:10px;padding:8px 14px;font-size:12.5px;color:var(--text-soft); opacity:0;transform:translateY(6px);transition:opacity .3s ease,transform .3s ease;pointer-events:none; } .theme-hint.show{opacity:1;transform:translateY(0)} /* ============ 404 ============ */ .error-page{min-height:72vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:80px 0;position:relative;overflow:hidden} .error-code{font-family:var(--mono);font-size:clamp(72px,14vw,140px);font-weight:800;line-height:1; background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent} .error-title{font-size:22px;font-weight:700;margin:18px 0 10px} .error-text{color:var(--text-soft);max-width:30em;margin:0 auto 30px} /* ============ 响应式 ============ */ @media (max-width:960px){ .hero-inner{grid-template-columns:1fr;gap:44px} .chat-card{max-width:520px} .feature-grid{grid-template-columns:repeat(2,1fr)} .scene-strip{grid-template-columns:repeat(2,1fr)} .news-grid{grid-template-columns:1fr 1fr} .steps{grid-template-columns:1fr} .footer-grid{grid-template-columns:1fr 1fr} } @media (max-width:720px){ body{font-size:15px} .nav-toggle{display:flex} .site-nav{ position:fixed;inset:var(--header-h) 0 auto 0; background:var(--bg);border-bottom:1px solid var(--line); flex-direction:column;align-items:stretch;gap:4px;padding:14px 5vw 20px; display:none; } body.nav-open .site-nav{display:flex} .nav-link{padding:12px 14px;font-size:16px} .nav-cta{margin:8px 0 0} .hero{padding:64px 0 76px} .section{padding:60px 0} .feature-grid{grid-template-columns:1fr} .news-grid{grid-template-columns:1fr} .scene-strip{grid-template-columns:1fr 1fr;gap:12px} .footer-grid{grid-template-columns:1fr;gap:28px} .hero-actions .btn{flex:1;justify-content:center} .theme-switch{right:16px;bottom:18px} } /* 动效降级 */ @media (prefers-reduced-motion:reduce){ *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important} html{scroll-behavior:auto} }