/* 沿用官网 Apple-style 基础排版；品牌细节共用 brand-system.css。 */
:root{
  --blue:#0a6ec4;--blue-d:#055aa8;--blue-dd:#044286;--blue-ll:#cfe4f7;--blue-pale:#f0f6fc;
  --t1:#1d1d1f;--t2:#424245;--t3:#6e6e73;--t4:#a1a1a6;
  --border:#d2d2d7;--border-light:#f0f0f2;--surface-2:#fbfbfd;
  --r4:6px;--r12:14px;--r20:22px;--sh-md:0 10px 32px rgba(0,0,0,.06);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:100px;font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;background:#fff;color:var(--t1);line-height:1.6}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;cursor:pointer}
em{font-style:normal}
.news-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;top:-100px;left:24px;z-index:10000;padding:12px 20px;background:#fff;color:var(--blue);border:2px solid var(--blue);border-radius:10px}
.skip-link:focus{top:12px}
#nav{position:fixed;top:0;left:0;right:0;z-index:999;height:68px;display:flex;align-items:center;justify-content:space-between;gap:22px;padding:0 6vw;transition:box-shadow .3s}
.nav-logo{display:flex;align-items:center;flex-shrink:0}
.nav-links{display:flex;gap:2px;list-style:none}
.nav-links a{font-size:15px;color:var(--t1);padding:8px 13px;border-radius:6px;white-space:nowrap;position:relative;transition:color .18s}
.nav-links a:hover{color:var(--blue)}
.nav-links a.active{font-weight:600}
.nav-links a.active::after{content:'';position:absolute;left:13px;right:13px;bottom:2px;height:2px}
.nav-actions{display:flex;gap:10px;align-items:center;flex-shrink:0}
.btn-ghost{display:inline-flex;font-size:13px;color:var(--t2);padding:8px 18px;border:1px solid var(--border);border-radius:999px;transition:.2s;white-space:nowrap}
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:18px;font-size:13px;font-weight:500;padding:9px 22px;border-radius:999px;border:0;white-space:nowrap;transition:.2s}
.nav-ham{display:none;flex-direction:column;gap:5px;padding:10px;background:none;border:none}
.nav-ham span{width:22px;height:2px;background:var(--t1);border-radius:2px}
main{padding-top:68px;min-height:70vh}
.news-shell{width:calc(100% - 192px);max-width:1440px;margin:0 auto}
.news-hero{position:relative;text-align:center;padding:98px 0 78px;background:radial-gradient(ellipse at 50% 0%,rgba(10,110,196,.055),transparent 65%),#fff}
.hero-tag{display:inline-flex;align-items:center;gap:10px;padding:7px 18px;border:1px solid rgba(184,138,31,.15);border-radius:999px;background:#faf7ef;color:var(--blue);font-size:12px;letter-spacing:2px;margin-bottom:28px}
.hero-tag span{height:5px;width:5px;border-radius:50%;background:#c9a02e}
.news-hero h1{font-family:'Noto Serif SC','Songti SC',serif;font-size:clamp(34px,3.65vw,62px);font-weight:700;line-height:1.3;letter-spacing:-1px;text-wrap:balance}
.news-hero h1 em{color:var(--blue);white-space:nowrap}
.news-hero p{font-size:16px;color:var(--t3);max-width:720px;line-height:1.8;margin:25px auto 0;text-wrap:balance}
.news-list-section{background:var(--surface-2);padding:0 0 88px;border-top:1px solid var(--border-light)}
.news-list-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:36px;border-bottom:1px solid #e9e9ed}
.news-category-list{display:flex;gap:34px;overflow-x:auto;scrollbar-width:thin}
.news-category-list a{position:relative;flex:none;padding:24px 0;font-size:14px;color:var(--t3)}
.news-category-list a:hover,.news-category-list a[aria-current]{color:var(--blue)}
.news-category-list a[aria-current]{font-weight:500}
.news-category-list a[aria-current]::after{content:'';position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--blue)}
.news-count{font-size:12px;color:var(--t3);white-space:nowrap}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.news-grid.is-single{grid-template-columns:1fr}
.news-grid.is-single .news-card{display:grid;grid-template-columns:1fr 1.15fr}
.news-grid.is-single .news-card-cover{height:100%;min-height:300px;aspect-ratio:auto}
.news-grid.is-single .news-card-body{padding:36px 40px}
.news-grid.is-single .news-card h3{font-size:28px}
.news-card{min-width:0;display:flex;flex-direction:column;border:1px solid var(--border-light);border-radius:22px;overflow:hidden;background:#fff;transition:box-shadow .25s,transform .25s}
.news-card:hover{box-shadow:var(--sh-md);transform:translateY(-4px)}
.news-card-cover{display:block;aspect-ratio:16/9;background:#f0f6fc;overflow:hidden}
.news-card-cover>img{width:100%;height:100%;object-fit:contain}
.news-card-placeholder{height:100%;position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:linear-gradient(130deg,#edf5fc,#f7f9fc);overflow:hidden}
.news-card-placeholder img{height:80px;width:auto;object-fit:contain}
.news-card-placeholder span{font-family:'Noto Serif SC',serif;font-size:20px;color:var(--blue-dd);letter-spacing:3px}
.news-card-body{padding:25px 28px 28px;display:flex;flex-direction:column;flex:1}
.news-card-meta{display:flex;justify-content:space-between;gap:12px;font-size:12px;color:var(--t3);margin-bottom:15px}
.news-card-meta>span{color:var(--blue)}
.news-card h3{font-family:'Noto Serif SC','Songti SC',serif;font-size:22px;line-height:1.55;font-weight:700;margin:0 0 12px;text-wrap:pretty}
.news-card h3 a:hover{color:var(--blue)}
.news-card p{font-size:14px;line-height:1.8;color:var(--t3);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card-more{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:24px;color:var(--blue);font-size:13px}
.news-card-more span{font-size:20px}
.news-empty{text-align:center;padding:64px 24px}
.news-empty h2{font-family:'Noto Serif SC',serif;font-size:28px;margin-bottom:16px}
.news-empty p{color:var(--t3);font-size:15px;margin-bottom:18px}
.news-text-link{color:var(--blue);font-size:14px}
.news-pagination{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:42px}
.news-pagination a{font-size:14px;padding:8px 14px;border-radius:10px;color:var(--t3)}
.news-pagination a[aria-current]{background:var(--blue);color:#fff}
.news-bottom-cta{padding:80px 6vw 88px;text-align:center;background:#fff}
.news-bottom-cta>p{font-size:14px;color:var(--t3);margin-bottom:16px}
.news-bottom-cta h2{font-family:'Noto Serif SC',serif;font-size:clamp(28px,3vw,42px);line-height:1.5;margin-bottom:30px;text-wrap:balance}
.news-bottom-cta h2 em{color:var(--blue)}
.news-bottom-cta .btn-primary{font-size:15px;padding:14px 32px}
.article-shell{max-width:1200px}
.article-breadcrumbs{display:flex;flex-wrap:wrap;gap:10px;padding:42px 0 32px;font-size:12px;color:var(--t3)}
.article-breadcrumbs a:hover{color:var(--blue)}
.article-hero{max-width:900px;border-bottom:1px solid var(--border-light);padding-bottom:32px}
.article-kicker{display:inline-block;font-size:12px;color:var(--blue);background:var(--blue-pale);border-radius:999px;padding:5px 12px;margin-bottom:16px}
.article-hero h1{font-family:'Noto Serif SC','Songti SC',serif;font-size:clamp(28px,3vw,44px);line-height:1.45;letter-spacing:-.6px;margin-bottom:20px;text-wrap:pretty;overflow-wrap:anywhere}
.article-summary{max-width:800px;color:var(--t3);font-size:16px;line-height:1.9}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 22px;color:var(--t3);font-size:12px;margin-top:24px}
.article-meta a:hover{color:var(--blue)}
.article-origin{font-size:12px;color:var(--t3);margin-top:14px}.article-origin a{color:var(--blue)}
.article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.article-tags span{font-size:11px;padding:4px 10px;border-radius:99px;background:#f2f6fa;color:#526d87}
.article-layout{display:grid;grid-template-columns:minmax(0,800px) 240px;gap:64px;padding:42px 0 80px}
.article-content{min-width:0}
.article-cover{margin-bottom:32px}
.article-cover img{width:100%;height:auto;border-radius:18px;border:1px solid var(--border-light)}
.article-cover figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:10px}
.article-body{font-size:16px;line-height:1.95;color:var(--t2);overflow-wrap:anywhere}
.article-body p{margin:0 0 22px}
.article-body h2{font-family:'Noto Serif SC',serif;font-size:27px;line-height:1.5;color:var(--t1);margin:42px 0 18px;scroll-margin-top:100px}
.article-body h3{font-size:20px;color:var(--t1);margin:30px 0 14px;scroll-margin-top:100px}
.article-body>:first-child{margin-top:0}
.article-body ul,.article-body ol{padding-left:1.5em;margin:16px 0 24px}
.article-body li+li{margin-top:8px}
.article-body a,.article-sources a{color:var(--blue);text-decoration:underline;text-underline-offset:4px}
.article-body blockquote{border-left:3px solid var(--blue);padding:18px 24px;background:var(--blue-pale);margin:26px 0;color:var(--t2)}
.article-body img{height:auto;max-width:100%;border-radius:12px}
.article-body figure{margin:38px auto;max-width:600px}
.article-body figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:10px}
.article-body table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:24px 0}
.article-body td,.article-body th{padding:12px 16px;border:1px solid var(--border);text-align:left;font-size:14px}
.article-body th{background:var(--surface-2)}
.article-body pre{overflow:auto;max-width:100%;padding:18px;background:var(--surface-2);border-radius:12px;font-size:13px}
.article-key-points{padding:22px 26px;background:var(--blue-pale);border-radius:16px;margin-bottom:32px}
.article-key-points h2{font-size:14px;color:var(--blue);margin-bottom:10px}
.article-key-points ul{padding-left:1.2em;font-size:15px;color:var(--t2);line-height:1.9}
.article-aside{position:sticky;top:100px;display:grid;gap:28px;min-width:0;align-self:start}
.article-toc h2,.article-product-links h2{font-size:13px;font-weight:500;color:var(--t3);margin-bottom:15px}
.article-toc ol{list-style:none;border-left:1px solid var(--border);padding-left:16px}
.article-toc{max-height:46vh;overflow:auto;scrollbar-width:thin}
.article-toc li+li{margin-top:12px}
.article-toc a{font-size:13px;color:var(--t2)}
.article-toc a:hover{color:var(--blue)}
.article-toc .toc-level-3{padding-left:12px}
.article-product-links{padding-top:22px;border-top:1px solid var(--border-light)}
.article-product-links a{display:flex;justify-content:space-between;gap:8px;font-size:13px;color:var(--blue);margin-top:10px}
.article-aside-cta{border-radius:18px;background:var(--surface-2);padding:24px;border:1px solid var(--border-light)}
.article-aside-cta>span{font-size:11px;color:var(--t3)}
.article-aside-cta h2{font-family:'Noto Serif SC',serif;font-size:22px;line-height:1.5;margin:12px 0 20px}
.article-sources{border-top:1px solid var(--border-light);margin-top:38px;padding-top:24px;font-size:13px;color:var(--t3)}
.article-sources h2{font-size:14px;margin-bottom:12px}
.article-sources ol{padding-left:20px;line-height:1.9}
.article-creation-note{font-size:12px;color:var(--t3);border-top:1px solid var(--border-light);margin-top:32px;padding-top:20px}
.article-mobile-toc{display:none}
.article-image-link{position:relative;display:block;overflow:hidden;border-radius:16px;border:1px solid #e0e9f2;background:#f6f9fc;text-decoration:none!important;cursor:zoom-in}
.article-image-link img{width:100%;height:auto;display:block;border:0;border-radius:0}
.article-image-hint{display:block;text-align:center;padding:10px;font-size:12px;font-weight:500;color:var(--blue);background:#f5f9fd;line-height:1.5}
.image-view-open{overflow:hidden}
.article-lightbox{position:fixed;inset:0;margin:auto;width:min(1280px,calc(100vw - 32px));height:calc(100dvh - 32px);max-width:none;max-height:none;border:1px solid #dce6ef;border-radius:18px;padding:0;background:#f3f6fa;color:var(--t1);box-shadow:0 24px 90px #00152960}
.article-lightbox[open]{display:flex;flex-direction:column}.article-lightbox::backdrop{background:#061726d9;backdrop-filter:blur(6px)}
.article-lightbox header{padding:14px 18px;background:#fff;display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px solid #e3eaf1;flex-shrink:0}
.article-lightbox header>strong{font-size:14px;max-width:35%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-lightbox header>div{display:flex;align-items:center;gap:8px}.article-lightbox button,.article-lightbox header a{font:inherit;font-size:12px;padding:8px 12px;border-radius:8px;border:1px solid #d7e3ee;background:#fff;color:var(--blue);cursor:pointer}
#image-view-count{font-size:11px;color:var(--t3);white-space:nowrap}
.image-view-stage{flex:1;min-height:0;overflow:auto;display:flex;align-items:center;justify-content:center;padding:16px}
.image-view-stage img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}
.image-view-stage.is-zoomed{display:block}.image-view-stage.is-zoomed img{max-width:none;max-height:none;margin:0 auto}
#image-view-caption{padding:10px 20px;background:#fff;font-size:12px;line-height:1.7;color:var(--t3);flex-shrink:0}
.article-end{display:flex;justify-content:space-between;gap:24px;margin-top:40px;padding-top:24px;border-top:1px solid var(--border-light);font-size:13px;color:var(--blue)}
.article-related{background:var(--surface-2);padding:64px 0 80px}
.article-related>.news-shell>h2{font-family:'Noto Serif SC',serif;font-size:28px;margin-bottom:30px}
.news-not-found{padding:100px 24px}
.news-not-found h1{margin-bottom:24px}
.site-footer{background:var(--surface-2);border-top:1px solid var(--border-light);padding:64px 6vw 32px;color:var(--t3)}
.ft-grid{display:grid;grid-template-columns:2.2fr repeat(4,1fr);gap:40px;margin-bottom:48px}
.ft-brand{display:flex;align-items:center;margin-bottom:12px}
.ft-company{font-size:12px;color:var(--t3);margin-bottom:12px;letter-spacing:.3px}
.ft-tagline{font-size:13px;line-height:1.85}
.ft-col-h{font-size:13px;font-weight:600;color:var(--t1);margin-bottom:16px;letter-spacing:.3px}
.ft-ul{list-style:none}
.ft-ul li{margin-bottom:12px}
.ft-ul a{font-size:13px}
.ft-ul a:hover{color:var(--blue)}
.ft-bottom{border-top:1px solid var(--border-light);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--t4)}
.news-preview-badge{position:fixed;bottom:12px;left:12px;z-index:998;background:rgba(255,255,255,.94);color:var(--t3);border:1px solid var(--border);border-radius:999px;padding:5px 12px;font-size:11px;box-shadow:0 2px 10px #00000008;pointer-events:none}
@media(max-width:1460px){
  #nav{padding:0 4vw;gap:16px}.nav-links a{padding-left:8px;padding-right:8px;font-size:14px}.nav-links a.active::after{left:8px;right:8px}
}
@media(max-width:1280px){
  .nav-ham{display:flex}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;padding:20px 6vw 26px;border-bottom:1px solid var(--border-light);box-shadow:var(--sh-md);grid-template-columns:repeat(2,1fr);gap:10px}
  .nav-links.is-open{display:grid}.nav-links a{display:block;padding:10px;font-size:15px}.nav-links a.active::after{right:auto;width:48px;bottom:4px}
  .news-grid{gap:20px}.news-card-body{padding:20px}.article-layout{gap:36px;grid-template-columns:minmax(0,1fr) 210px}
  .ft-grid{grid-template-columns:repeat(4,1fr);gap:28px}.ft-grid>div:first-child{grid-column:1/-1}
}
@media(max-width:1020px){
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.news-grid.is-single .news-card-body{padding:26px}.news-grid.is-single .news-card h3{font-size:23px}
  .article-layout{display:flex;flex-direction:column;gap:40px}.article-aside{position:static;width:100%}.article-toc{display:none}
  .article-mobile-toc{display:block;margin-bottom:30px;background:#f4f8fc;border:1px solid #e0e9f2;border-radius:12px;padding:16px}.article-mobile-toc summary{cursor:pointer;font-size:14px;color:var(--blue);font-weight:600}.article-mobile-toc summary span{font-size:11px;color:var(--t3);font-weight:400;margin-left:10px}.article-mobile-toc ol{list-style:none;padding-top:14px}.article-mobile-toc li{margin:12px 0;font-size:13px}.article-mobile-toc .toc-level-3{padding-left:12px}
}
@media(max-width:800px){
  .news-hero{padding:66px 0 54px}.news-hero h1{font-size:38px}.news-hero h1 em{display:block;margin-top:6px}.news-hero p{font-size:15px;max-width:500px}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.news-category-list{gap:24px}.news-count{display:none}
  .article-layout{display:flex;flex-direction:column;gap:40px}.article-aside{position:static;width:100%}.article-toc{display:none}.article-hero h1{font-size:34px}
  .news-grid.is-single .news-card{display:flex}.news-grid.is-single .news-card-cover{min-height:0;height:auto;aspect-ratio:16/9}
  .article-mobile-toc{display:block;margin-bottom:30px;background:#f4f8fc;border:1px solid #e0e9f2;border-radius:12px;padding:16px}.article-mobile-toc summary{cursor:pointer;font-size:14px;color:var(--blue);font-weight:600}.article-mobile-toc summary span{font-size:11px;color:var(--t3);font-weight:400;margin-left:10px}.article-mobile-toc ol{list-style:none;padding-top:14px}.article-mobile-toc li{margin:12px 0;font-size:13px}.article-mobile-toc .toc-level-3{padding-left:12px}
  .article-lightbox{width:100vw;height:100dvh;border:0;border-radius:0}.article-lightbox header{flex-direction:column;align-items:stretch;padding:12px}.article-lightbox header>strong{max-width:100%}.article-lightbox header>div{gap:5px;justify-content:space-between}.article-lightbox button,.article-lightbox header a{font-size:11px;padding:8px}.image-view-stage{padding:8px}#image-view-caption{padding:12px;font-size:11px}
}
@media(max-width:640px){.news-shell{width:calc(100% - 40px)}}
@media(max-width:560px){
  .news-shell{width:calc(100% - 40px)}#nav{padding:0 20px;gap:12px}.nav-actions{gap:8px}.nav-actions .btn-ghost{display:none}.nav-actions .btn-primary{padding:9px 16px;font-size:12px}
  .hero-tag{margin-bottom:22px;font-size:11px}.news-hero h1{font-size:32px;letter-spacing:-.6px}.news-hero p{font-size:14px;max-width:320px;margin-top:22px}
  .news-list-toolbar{margin-bottom:24px}.news-category-list{gap:24px}.news-category-list a{font-size:13px;padding:20px 0}
  .news-grid{grid-template-columns:1fr;gap:24px}.news-card-body{padding:22px}.news-card h3{font-size:21px}.news-list-section{padding-bottom:52px}
  .news-bottom-cta{padding:54px 24px 62px}.news-bottom-cta h2{font-size:26px}
  .article-breadcrumbs{padding-top:26px;padding-bottom:26px}.article-hero h1{font-size:29px}.article-summary{font-size:15px}.article-meta{font-size:11px;gap:8px 16px}
  .article-layout{padding-top:30px}.article-body h2{font-size:24px}.article-key-points{padding:20px}.article-end{font-size:12px}
  .site-footer{padding:48px 20px 60px}.ft-grid{grid-template-columns:1fr 1fr;gap:26px}.ft-bottom{font-size:11px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.news-card,.btn-primary{transition:none}}