:root{
  --primary:#6F5AE8;--primary-soft:#9A8CF2;--ink:#242433;--text:#30303A;--muted:#70707D;
  --bg:#F8F8FC;--soft:#F0EEFA;--accent:#F29A4A;--white:#fff;--border:#dedceb;
  --radius:22px;--shadow:0 18px 60px rgba(36,36,51,.08);--max:1180px;
}
*{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","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}a:hover{color:var(--primary)}button,input{font:inherit}button{cursor:pointer}.container{width:min(calc(100% - 40px),var(--max));margin-inline:auto}.skip-link{position:fixed;left:16px;top:-80px;background:var(--ink);color:#fff;padding:10px 14px;z-index:999;border-radius:8px}.skip-link:focus{top:16px}.site-header{position:sticky;top:0;z-index:80;background:rgba(248,248,252,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(222,220,235,.85)}.header-row{min-height:76px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;min-width:210px}.brand img{width:44px;height:44px;object-fit:contain;border-radius:12px}.brand span{display:grid;line-height:1.15}.brand strong{font-size:18px;color:var(--ink)}.brand small{margin-top:5px;color:var(--muted);font-size:12px}.primary-nav{display:flex;align-items:center;gap:2px;margin-left:auto}.primary-nav a{padding:10px 11px;border-radius:10px;color:#50505d;font-size:14px}.primary-nav a[aria-current="page"],.primary-nav a:hover{background:var(--soft);color:var(--primary)}.menu-toggle{display:none;border:1px solid var(--border);background:#fff;border-radius:10px;padding:8px 12px}.search-trigger{border:0;background:var(--ink);color:#fff;padding:10px 14px;border-radius:12px;white-space:nowrap}.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;background:rgba(20,20,30,.58);z-index:200;display:grid;place-items:start center;padding:12vh 20px 30px}.search-modal__panel{position:relative;width:min(680px,100%);background:#fff;border-radius:24px;padding:32px;box-shadow:0 30px 90px rgba(0,0,0,.25)}.search-modal__close{position:absolute;right:18px;top:16px;border:0;background:var(--soft);width:38px;height:38px;border-radius:50%;font-size:24px}.search-form label{display:block;font-weight:700;margin-bottom:8px}.search-form__row{display:flex;gap:10px}.search-form input{flex:1;min-width:0;border:1px solid var(--border);background:#fff;border-radius:12px;padding:13px 14px;outline:none}.search-form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(111,90,232,.12)}
.hero{padding:80px 0 68px}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:56px}.hero-copy h1,.page-hero h1,.article-hero h1{color:var(--ink);letter-spacing:-.03em;line-height:1.13;margin:12px 0 22px}.hero-copy h1{font-size:clamp(40px,5vw,68px)}.hero-lead{font-size:18px;color:#555562;max-width:740px}.eyebrow{display:inline-block;margin:0;color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 18px;border-radius:12px;font-weight:750;border:1px solid transparent;transition:.2s ease}.button:hover{transform:translateY(-1px)}.button--primary{background:var(--primary);color:#fff}.button--primary:hover{color:#fff;background:#604bd8}.button--accent{background:var(--accent);color:#2b2119}.button--accent:hover{color:#2b2119;background:#ee8a32}.button--ghost{border-color:var(--border);background:#fff;color:var(--ink)}.hero-notes{display:flex;flex-wrap:wrap;gap:8px 18px;padding:0;margin:26px 0 0;list-style:none;color:var(--muted);font-size:13px}.hero-notes li:before{content:"✓";color:var(--primary);font-weight:900;margin-right:6px}.hero-media{margin:0;position:relative}.hero-media img{border-radius:34px;box-shadow:var(--shadow);background:var(--soft);aspect-ratio:19/14;object-fit:cover}.hero-media figcaption{position:absolute;right:18px;bottom:18px;background:rgba(36,36,51,.88);color:#fff;border-radius:12px;padding:9px 12px;font-size:12px}.section{padding:76px 0}.section--lavender{background:var(--soft)}.section--soft{background:#f2f2f7}.section--dark{background:var(--ink);color:#eaeaef}.section--dark h2,.section--dark h3{color:#fff}.section--dark .eyebrow{color:#c2b9ff}.section--image-band{background:#ebe8fa}.section--final{padding-top:28px}.section-heading{margin-bottom:34px;max-width:760px}.section-heading h2,.split-feature h2,.question-strip h2,.final-cta h2{margin:6px 0 12px;color:var(--ink);font-size:clamp(28px,4vw,44px);line-height:1.18;letter-spacing:-.02em}.section--dark .section-heading h2{color:#fff}.section-heading p{color:var(--muted)}.section-heading--split{display:flex;align-items:end;justify-content:space-between;gap:32px;max-width:none}.section-heading--split>p{max-width:480px;margin:0}.intent-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.intent-card{background:#fff;border:1px solid rgba(111,90,232,.12);border-radius:22px;padding:28px;transition:.2s ease}.intent-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);color:inherit}.intent-card>span{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--soft);color:var(--primary);font-weight:800}.intent-card h3{font-size:22px;color:var(--ink);margin:18px 0 8px}.intent-card p{color:var(--muted);margin-bottom:18px}.intent-card strong{color:var(--primary);font-size:14px}.split-feature{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:64px}.split-feature--reverse>figure{order:2}.split-feature figure{margin:0}.split-feature img{width:100%;border-radius:28px;box-shadow:var(--shadow);background:var(--soft);aspect-ratio:4/3;object-fit:cover}.split-feature p{color:#5b5b66}.inline-links{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:22px}.inline-links a,.text-link{color:var(--primary);font-weight:750;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.check-grid article{padding:24px;border:1px solid rgba(255,255,255,.13);border-radius:18px;background:rgba(255,255,255,.04)}.check-grid b{color:#c2b9ff;font-size:13px}.check-grid h3{margin:10px 0 8px}.check-grid p{color:#bcbcc8;font-size:14px}.feature-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.feature-list article{border-top:3px solid var(--primary);background:#fff;border-radius:0 0 18px 18px;padding:24px;box-shadow:0 12px 34px rgba(36,36,51,.05)}.feature-list h3{margin:0 0 8px;color:var(--ink)}.feature-list p{margin:0;color:var(--muted)}.feature-list--large{grid-template-columns:repeat(2,1fr)}.feature-list--large article{padding:32px}.feature-list--large h2{font-size:26px;color:var(--ink)}.feature-number{display:inline-block;color:var(--primary);font-weight:900;margin-bottom:12px}.step-list{list-style:none;padding:0;margin:24px 0}.step-list li{display:grid;grid-template-columns:52px 1fr;gap:14px;padding:16px 0;border-bottom:1px solid var(--border)}.step-list li>span{display:grid;place-items:center;width:44px;height:44px;background:var(--primary);color:#fff;border-radius:12px;font-weight:800}.step-list h3{margin:0 0 4px;color:var(--ink)}.step-list p{margin:0}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.article-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:20px;padding:24px;min-height:280px}.article-card__meta{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:12px}.article-card__meta span{color:var(--primary);font-weight:800}.article-card h3{font-size:21px;line-height:1.42;color:var(--ink);margin:16px 0 10px}.article-card p{color:var(--muted);margin:0 0 20px}.article-card .text-link{margin-top:auto}.section-cta{text-align:center;margin-top:28px}.band-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}.band-grid img{border-radius:24px}.question-strip{display:grid;grid-template-columns:.75fr 1.4fr;gap:36px;align-items:start}.question-strip__items details,.faq-list details{border-bottom:1px solid var(--border);padding:16px 0}.question-strip__items summary,.faq-list summary{cursor:pointer;font-weight:750;color:var(--ink);list-style:none}.question-strip__items summary::-webkit-details-marker,.faq-list summary::-webkit-details-marker{display:none}.question-strip__items summary:after,.faq-list summary:after{content:"+";float:right;color:var(--primary);font-size:20px}.question-strip__items details[open] summary:after,.faq-list details[open] summary:after{content:"–"}.question-strip__items p,.faq-list p{color:var(--muted)}.question-strip>.button{grid-column:2;justify-self:start}.plain-list,.checklist{padding-left:0;list-style:none}.plain-list li,.checklist li{position:relative;padding:10px 0 10px 30px;border-bottom:1px solid var(--border)}.plain-list li:before,.checklist li:before{content:"✓";position:absolute;left:0;top:10px;color:var(--primary);font-weight:900}.final-cta{background:var(--ink);color:#fff;border-radius:28px;padding:44px;display:flex;align-items:center;justify-content:space-between;gap:40px}.final-cta h2{color:#fff}.final-cta p{color:#c9c9d1;max-width:580px}
.page-hero{padding:58px 0;background:linear-gradient(180deg,#f1effb 0%,var(--bg) 100%)}.page-hero--accent{background:linear-gradient(180deg,#fff3e7 0%,var(--bg) 100%)}.page-hero--dark{background:var(--ink);color:#fff}.page-hero--dark h1{color:#fff}.page-hero--dark p{color:#c7c7d1}.page-hero h1{font-size:clamp(36px,5vw,58px);max-width:900px}.page-hero .container>p:last-child{max-width:860px;color:var(--muted);font-size:17px}.breadcrumbs{margin-bottom:26px}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0;list-style:none;color:var(--muted);font-size:13px}.breadcrumbs li:not(:last-child):after{content:"/";margin-left:8px;color:#aaa}.comparison{display:grid;grid-template-columns:1fr 1fr;gap:20px}.comparison>div{background:#fff;border-radius:20px;padding:28px}.comparison h3{margin-top:0;color:var(--ink)}.comparison ul{padding-left:20px}.numbered-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.numbered-grid article{background:#fff;border:1px solid var(--border);border-radius:18px;padding:24px}.numbered-grid span{font-weight:900;color:var(--primary);font-size:28px}.numbered-grid h3{color:var(--ink);margin:8px 0}.numbered-grid p{color:var(--muted);margin:0}.notice{margin-top:24px;background:#fff7ed;border:1px solid #f6d5ad;border-radius:16px;padding:18px}.notice strong{color:#9b5414}.notice p{margin:6px 0 0}.guide-index{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.guide-index a{display:grid;gap:6px;background:#fff;border:1px solid var(--border);border-radius:16px;padding:22px}.guide-index strong{color:var(--ink);font-size:18px}.guide-index span{color:var(--muted);font-size:14px}.category-chips{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:28px}.category-chips span{background:var(--soft);color:#5148a7;padding:7px 11px;border-radius:999px;font-size:13px;font-weight:700}.info-table{border:1px solid var(--border);border-radius:18px;overflow:hidden}.info-table>div{display:grid;grid-template-columns:160px 1fr;gap:20px;padding:16px 20px;background:#fff;border-bottom:1px solid var(--border)}.info-table>div:last-child{border-bottom:0}.info-table strong{color:var(--ink)}.info-table span{color:var(--muted)}.policy-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.policy-grid section{background:#fff;border:1px solid var(--border);border-radius:20px;padding:28px}.policy-grid h2{color:var(--ink);margin-top:0}.principle-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}.principle-list li{display:grid;grid-template-columns:54px 1fr;gap:14px;background:#fff;border-radius:16px;padding:20px}.principle-list span{color:var(--primary);font-weight:900}.principle-list p{margin:0}.faq-layout{display:grid;grid-template-columns:1.5fr .7fr;gap:54px;align-items:start}.faq-list details{padding:20px 0}.faq-list summary{font-size:18px}.faq-layout aside{position:sticky;top:110px}.faq-layout aside img{border-radius:22px;margin-bottom:18px}.aside-card{background:var(--soft);border-radius:18px;padding:22px}.aside-card h2{margin-top:0;color:var(--ink);font-size:20px}.aside-card a{display:block;color:var(--primary);font-weight:700;padding:7px 0}.article-hero{padding:56px 0 34px;background:var(--soft)}.article-narrow{max-width:860px}.article-hero h1{font-size:clamp(34px,5vw,58px)}.article-deck{font-size:19px;color:#5b5b66}.article-meta{font-size:13px;color:var(--muted)}.article-layout{display:grid;grid-template-columns:minmax(0,760px) 280px;gap:64px;padding-top:56px;padding-bottom:64px}.article-body section{margin-bottom:40px}.article-body h2{font-size:28px;line-height:1.3;color:var(--ink);margin:0 0 14px}.article-body p{font-size:17px;line-height:1.9;color:#484854}.article-note{background:#f2f0fb;border-left:4px solid var(--primary);padding:24px;border-radius:0 16px 16px 0}.article-aside{position:relative}.article-aside .aside-card{position:sticky;top:110px}.search-form--page{max-width:720px;margin-top:24px}.empty-state{background:#fff;border:1px dashed var(--border);border-radius:20px;padding:36px;text-align:center}.search-results{display:grid;gap:14px;max-width:840px}.result-count{color:var(--muted)}.search-results article{background:#fff;border:1px solid var(--border);border-radius:18px;padding:22px}.search-results h2{margin:0 0 8px;font-size:21px;color:var(--ink)}.search-results p{color:var(--muted)}.not-found{min-height:65vh;display:grid;place-items:center;padding:80px 0}.not-found__inner{max-width:760px;text-align:center}.not-found h1{font-size:clamp(36px,6vw,64px);line-height:1.1;color:var(--ink)}
.site-footer{background:#1d1d29;color:#c7c7d0;padding:54px 0 24px;margin-top:0}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:44px}.footer-grid h2{color:#fff;font-size:18px}.footer-grid a{display:block;padding:5px 0;color:#d7d7df}.footer-grid p{max-width:520px}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:20px;font-size:13px}.back-top{position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;border:0;background:var(--primary);color:#fff;box-shadow:var(--shadow);opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s}.back-top.is-visible{opacity:1;pointer-events:auto;transform:none}
@media(max-width:1100px){.primary-nav{display:none;position:absolute;left:20px;right:20px;top:68px;background:#fff;border:1px solid var(--border);border-radius:16px;padding:12px;box-shadow:var(--shadow)}.primary-nav.is-open{display:grid;grid-template-columns:1fr 1fr}.menu-toggle{display:block;margin-left:auto}.search-trigger{margin-left:0}.hero-grid,.split-feature,.band-grid{gap:36px}.article-grid{grid-template-columns:repeat(2,1fr)}.check-grid,.numbered-grid{grid-template-columns:repeat(2,1fr)}.feature-list{grid-template-columns:repeat(2,1fr)}.guide-index{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){.container{width:min(calc(100% - 28px),var(--max))}.hero{padding:52px 0}.hero-grid,.split-feature,.band-grid,.question-strip,.faq-layout,.article-layout{grid-template-columns:1fr}.split-feature--reverse>figure{order:0}.hero-media{max-width:680px}.section{padding:58px 0}.section-heading--split{display:block}.intent-grid,.policy-grid,.principle-list{grid-template-columns:1fr}.question-strip>.button{grid-column:auto}.faq-layout aside{position:static}.article-layout{gap:24px}.article-aside .aside-card{position:static}.final-cta{display:block}.footer-grid{grid-template-columns:1fr 1fr}.comparison{grid-template-columns:1fr}.info-table>div{grid-template-columns:1fr;gap:4px}}
@media(max-width:600px){.header-row{min-height:68px;gap:10px}.brand{min-width:0}.brand small{display:none}.brand strong{font-size:16px}.brand img{width:38px;height:38px}.search-trigger{font-size:0;padding:9px;width:40px;height:40px}.search-trigger:after{content:"搜";font-size:13px}.primary-nav.is-open{grid-template-columns:1fr}.hero-copy h1{font-size:38px}.page-hero h1,.article-hero h1{font-size:34px}.hero-lead{font-size:16px}.hero-actions{display:grid}.button{width:100%}.hero-notes{display:grid}.intent-grid,.feature-list,.feature-list--large,.article-grid,.check-grid,.numbered-grid,.guide-index{grid-template-columns:1fr}.section-heading h2,.split-feature h2,.question-strip h2,.final-cta h2{font-size:30px}.section{padding:48px 0}.split-feature{gap:28px}.comparison>div,.intent-card,.article-card{padding:20px}.question-strip{gap:18px}.final-cta{padding:28px 22px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.search-modal{padding-top:8vh}.search-modal__panel{padding:26px 20px}.search-form__row{display:grid}.search-form__row .button{width:auto}.article-body h2{font-size:24px}.article-body p{font-size:16px}.article-layout{padding-top:36px}.info-table>div{padding:14px}.back-top{right:14px;bottom:14px}}