:root{
    --primary:#6F5AE8;
    --primary-soft:#9A8CF2;
    --ink:#242433;
    --text:#30303A;
    --muted:#70707D;
    --bg:#F8F8FC;
    --soft:#F0EEFA;
    --accent:#F29A4A;
    --white:#FFFFFF;
    --line:#DEDCEA;
    --shadow:0 18px 50px rgba(36,36,51,.08);
    --radius:24px;
    --content:min(1180px,calc(100% - 40px));
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}.skip-link{position:fixed;left:16px;top:-60px;background:var(--ink);color:#fff;padding:10px 16px;border-radius:12px;z-index:1000}.skip-link:focus{top:16px}.site-header{position:sticky;top:0;z-index:100;background:rgba(248,248,252,.95);border-bottom:1px solid rgba(222,220,234,.8);backdrop-filter:blur(12px)}.header-inner{width:var(--content);min-height:76px;margin:auto;display:flex;align-items:center;gap:26px}.brand{display:flex;align-items:center;gap:10px;margin-right:auto}.brand img{width:44px;height:44px;object-fit:contain}.brand strong,.brand small{display:block}.brand strong{font-size:18px;color:var(--ink)}.brand small{font-size:12px;color:var(--muted);margin-top:2px}.primary-nav{display:flex;align-items:center;gap:20px}.primary-nav a{font-size:15px;color:#454553;position:relative}.primary-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-7px;height:2px;background:var(--primary);transition:.2s}.primary-nav a:hover:after,.primary-nav a:focus-visible:after{right:0}.search-open,.menu-toggle{border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:999px;padding:9px 15px;cursor:pointer}.menu-toggle{display:none}.site-main{overflow:hidden}.hero{width:var(--content);margin:0 auto;padding:78px 0 66px;display:grid;grid-template-columns:1.04fr .96fr;gap:64px;align-items:center}.hero-copy h1,.page-hero h1,.article-header h1{margin:10px 0 20px;font-size:clamp(38px,5vw,68px);line-height:1.08;letter-spacing:-.035em;color:var(--ink)}.hero-copy>p{font-size:18px;max-width:760px;color:#555565}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.eyebrow:before{content:"";width:24px;height:2px;background:currentColor}.button-row{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 18px;border-radius:14px;font-weight:750;border:1px solid transparent;transition:transform .18s,box-shadow .18s,background .18s}.button:hover{transform:translateY(-2px)}.button--primary{background:var(--primary);color:white;box-shadow:0 10px 24px rgba(111,90,232,.24)}.button--accent{background:var(--accent);color:#2d241b;box-shadow:0 10px 24px rgba(242,154,74,.22)}.button--ghost{border-color:var(--line);background:white;color:var(--ink)}.hero-points{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:9px;color:var(--muted)}.hero-points li:before{content:"✓";color:var(--primary);font-weight:900;margin-right:9px}.hero-visual{margin:0;padding:18px;background:white;border:1px solid var(--line);border-radius:32px;box-shadow:var(--shadow);transform:rotate(1.2deg)}.hero-visual img{border-radius:22px;width:100%;aspect-ratio:1.25/1;object-fit:cover}.hero-visual figcaption{font-size:13px;color:var(--muted);padding:12px 8px 2px}.section{width:var(--content);margin:0 auto;padding:76px 0}.section--soft{width:100%;padding-left:max(20px,calc((100% - 1180px)/2));padding-right:max(20px,calc((100% - 1180px)/2));background:var(--soft)}.section-heading{max-width:760px;margin-bottom:34px}.section-heading h2,.editorial-split h2,.section--image-pair h2,.download-callout h2,.topic-list h2,.page-cta h2,.two-column h2,.guide-intro h2{color:var(--ink);font-size:clamp(28px,3vw,44px);line-height:1.15;letter-spacing:-.025em;margin:10px 0 16px}.section-heading p,.editorial-split p,.section--image-pair p,.two-column p,.guide-intro p{color:var(--muted)}.split-heading{max-width:none;display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:end}.core-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.core-card{background:white;border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:0 8px 30px rgba(36,36,51,.045)}.core-card img{width:100%;aspect-ratio:1.6/1;object-fit:cover}.core-card>div{padding:23px}.core-card h3{font-size:22px;margin:0 0 9px;color:var(--ink)}.core-card p{color:var(--muted);min-height:78px}.text-link{color:var(--primary);font-weight:750}.text-link:after{content:" →"}.editorial-split{display:grid;grid-template-columns:1.2fr .8fr;gap:64px;align-items:start}.note-panel{background:var(--ink);color:#f6f5ff;padding:30px;border-radius:24px;box-shadow:var(--shadow)}.note-panel strong{font-size:19px}.note-panel p,.note-panel li{color:#d7d5e8}.note-panel ol,.note-panel ul{padding-left:20px}.note-panel .text-link{color:#c7bdff}.feature-band{border-top:1px solid var(--line)}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.feature-grid article{padding:24px;border-top:3px solid var(--primary-soft);background:white;border-radius:0 0 18px 18px;box-shadow:0 10px 25px rgba(36,36,51,.045)}.feature-grid h3{font-size:19px;color:var(--ink);margin:10px 0 8px}.feature-grid p{font-size:15px;color:var(--muted);margin:0}.feature-icon{display:inline-flex;border-radius:999px;background:var(--soft);color:var(--primary);padding:5px 10px;font-weight:800;font-size:12px}.section--image-pair{display:grid;grid-template-columns:.95fr 1.05fr;gap:62px;align-items:center}.section--image-pair 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1.2fr;gap:50px;align-items:center}.topic-image img{border-radius:28px;box-shadow:var(--shadow)}.topic-list{display:grid;gap:0}.topic-list>a{padding:20px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:28px}.topic-list>a strong{color:var(--ink)}.topic-list>a span{color:var(--muted);text-align:right}.faq-list{display:grid;gap:12px}.faq-item{background:white;border:1px solid var(--line);border-radius:18px;overflow:hidden}.faq-item h3{margin:0}.faq-question{width:100%;background:white;border:0;display:flex;justify-content:space-between;gap:20px;text-align:left;padding:20px 22px;font-weight:780;color:var(--ink);cursor:pointer}.faq-question span{font-size:22px;color:var(--primary)}.faq-answer{padding:0 22px 20px;color:var(--muted)}.faq-answer p{margin:0}.section-actions{margin-top:24px}.about-strip{display:grid;grid-template-columns:320px 1fr;gap:44px;align-items:center;background:white;border:1px solid var(--line);border-radius:28px;padding:30px}.about-strip img{border-radius:20px;width:100%;height:240px;object-fit:cover}.about-strip h2{font-size:32px;color:var(--ink);margin:10px 0}.about-strip p{color:var(--muted)}.breadcrumbs{width:var(--content);margin:14px auto 0}.breadcrumbs ol{list-style:none;margin:0;padding:0;display:flex;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--muted)}.breadcrumbs li:not(:last-child):after{content:"/";margin-left:8px;color:#aaa7b7}.breadcrumbs a:hover{color:var(--primary)}.page-hero{width:var(--content);margin:auto;padding:60px 0 34px;display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}.page-hero--compact h1{font-size:clamp(34px,4.4vw,56px)}.page-hero p{font-size:17px;color:var(--muted)}.page-hero figure{margin:0}.page-hero img{border-radius:28px;box-shadow:var(--shadow);width:100%;max-height:410px;object-fit:cover}.two-column{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:start}.process-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.process-grid li{background:white;padding:24px;border-radius:18px;border:1px solid var(--line)}.process-grid span{color:var(--primary);font-weight:900;font-size:13px}.process-grid h3{color:var(--ink);font-size:19px;margin:10px 0}.process-grid p{color:var(--muted);font-size:14px}.page-cta{text-align:center;background:white;border:1px solid var(--line);border-radius:28px;padding:48px}.page-cta p{max-width:760px;margin:0 auto 22px;color:var(--muted)}.link-rail{display:grid;border-top:1px solid var(--line)}.link-rail a{display:grid;grid-template-columns:240px 1fr;gap:30px;padding:20px 0;border-bottom:1px solid var(--line)}.link-rail strong{color:var(--ink)}.link-rail span{color:var(--muted)}.guide-intro{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}.guide-intro figure{margin:0}.guide-intro img{border-radius:28px;box-shadow:var(--shadow)}.guide-filter{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}.guide-filter a{padding:8px 13px;border-radius:999px;background:white;border:1px solid var(--line);color:var(--ink)}.article-page{width:var(--content);margin:auto}.article-header{padding:62px 0 24px;display:grid;grid-template-columns:1.07fr .93fr;gap:56px;align-items:center}.article-header h1{font-size:clamp(36px,4.4vw,58px)}.article-header .lead{font-size:18px;color:var(--muted)}.article-header figure{margin:0}.article-header img{border-radius:28px;box-shadow:var(--shadow);width:100%;object-fit:cover}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:70px;padding:50px 0}.article-content{max-width:780px}.article-content section{margin-bottom:52px}.article-content h2{color:var(--ink);font-size:30px;line-height:1.25;margin:0 0 20px}.article-content p{font-size:17px;line-height:1.9;color:#484856}.sticky-card{position:sticky;top:110px;background:white;border:1px solid var(--line);border-radius:20px;padding:22px}.sticky-card h2{font-size:20px;color:var(--ink)}.sticky-card a{display:block;padding:10px 0;border-top:1px solid var(--line);color:var(--primary);font-weight:700}.search-form label,.contact-form label{display:block;font-weight:750;color:var(--ink);margin-bottom:8px}.search-form__row{display:flex;gap:10px}.search-form input,.contact-form input,.contact-form textarea{width:100%;border:1px solid var(--line);background:white;border-radius:14px;padding:12px 14px;color:var(--ink);outline:none}.search-form input:focus,.contact-form input:focus,.contact-form textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(111,90,232,.12)}.search-page{max-width:900px}.search-form--page{margin-bottom:34px}.search-results{border-top:1px solid var(--line)}.search-results article{padding:24px 0;border-bottom:1px solid 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a:hover{color:white}.footer-note{margin-top:15px!important}.footer-bottom{border-top:1px solid #3e3d4d;margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;color:#9e9cad;font-size:13px}.back-top{position:fixed;right:20px;bottom:20px;width:44px;height:44px;border:0;border-radius:50%;background:var(--primary);color:#fff;cursor:pointer;box-shadow:var(--shadow)}.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;z-index:500;display:grid;place-items:start center;padding-top:12vh}.search-modal__backdrop{position:absolute;inset:0;background:rgba(20,19,29,.56)}.search-panel{position:relative;width:min(680px,calc(100% - 32px));background:var(--bg);border-radius:24px;padding:32px;box-shadow:0 30px 80px rgba(0,0,0,.25)}.search-panel h2{font-size:30px;color:var(--ink);margin:10px 0 20px}.search-close{position:absolute;right:16px;top:13px;border:0;background:transparent;color:var(--muted);font-size:30px;cursor:pointer}body.modal-open{overflow:hidden}
@media(max-width:1024px){:root{--content:min(94%,900px)}.primary-nav{gap:12px}.hero,.page-hero,.article-header{gap:34px}.hero{padding-top:54px}.feature-grid{grid-template-columns:repeat(2,1fr)}.process-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){.menu-toggle{display:inline-flex}.primary-nav{position:absolute;left:3%;right:3%;top:68px;display:none;flex-direction:column;align-items:stretch;background:white;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow)}.primary-nav.is-open{display:flex}.primary-nav a{padding:8px}.search-open{padding:8px 12px}.hero,.page-hero,.article-header,.editorial-split,.section--image-pair,.topic-layout,.two-column,.guide-intro,.article-layout{grid-template-columns:1fr}.hero{padding-top:46px}.hero-visual{transform:none}.split-heading{grid-template-columns:1fr;gap:10px}.core-grid{grid-template-columns:1fr}.core-card{display:grid;grid-template-columns:220px 1fr}.core-card img{height:100%;aspect-ratio:auto}.article-row{grid-template-columns:1fr;gap:8px}.download-callout{flex-direction:column;align-items:flex-start}.topic-list>a{display:block}.topic-list>a span{display:block;text-align:left;margin-top:6px}.about-strip{grid-template-columns:1fr}.about-strip img{height:280px}.article-aside{display:none}.footer-grid{grid-template-columns:1fr 1fr}.page-hero figure{max-width:640px}.article-header figure{max-width:680px}.article-content{max-width:none}}
@media(max-width:600px){:root{--content:calc(100% - 28px)}.header-inner{min-height:66px;gap:9px}.brand small{display:none}.brand img{width:38px;height:38px}.brand strong{font-size:16px}.search-open{font-size:0;padding:9px 11px}.search-open:after{content:"搜索";font-size:13px}.menu-toggle{font-size:13px}.hero,.section,.page-hero,.article-header{padding-top:44px;padding-bottom:44px}.hero-copy h1,.page-hero h1,.article-header h1{font-size:38px}.section--soft{padding-left:14px;padding-right:14px}.core-card{display:block}.feature-grid,.process-grid{grid-template-columns:1fr}.section-heading h2,.editorial-split h2,.section--image-pair h2,.download-callout h2,.topic-list h2,.page-cta h2,.two-column h2,.guide-intro h2{font-size:30px}.download-callout,.page-cta{padding:30px 24px}.link-rail a{grid-template-columns:1fr;gap:4px}.article-content h2{font-size:26px}.article-content p{font-size:16px}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;gap:8px}.search-form__row{flex-direction:column}.button{width:100%}.button-row{width:100%}.about-strip{padding:20px}.error-page h1{font-size:38px}}
@media(max-width:375px){.brand span{max-width:120px}.hero-copy h1,.page-hero h1,.article-header h1{font-size:34px}.eyebrow{font-size:11px}.section-heading h2,.editorial-split h2,.section--image-pair h2,.download-callout h2,.topic-list h2,.page-cta h2,.two-column h2,.guide-intro h2{font-size:28px}}