/* 频道页 v2：自考 / 成考 / 国开 / 地区总览 */
.ch{--mode:var(--c-brand-2);overflow-x:clip}
.ch--zk{--mode:var(--c-zk)}.ch--ck{--mode:var(--c-ck)}.ch--gk{--mode:var(--c-gk)}
.ch+.site-footer,.ch~.site-footer{margin-top:120px}
.breadcrumb+.ch .ch-hero{padding-top:28px}
.ch-section{padding-top:80px}

/* 首屏 */
.ch-hero{padding:20px 0 56px;background:radial-gradient(800px 420px at 90% 0%,color-mix(in srgb,var(--mode) 12%,transparent) 0%,transparent 70%),radial-gradient(520px 300px at 0% 100%,#fff1e7 0%,transparent 70%);border-bottom:1px solid var(--c-line)}
.ch-hero__grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center}
.ch-hero__kicker{display:inline-flex;align-items:center;gap:8px;padding:6px 14px 6px 10px;border-radius:999px;background:#fff;border:1px solid var(--c-line);font-size:13px;font-weight:600;color:var(--c-brand)}
.ch-hero__kicker::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mode);box-shadow:0 0 0 4px color-mix(in srgb,var(--mode) 18%,transparent)}
.ch-hero h1{display:flex;flex-direction:column;gap:6px;margin-top:18px;font-size:52px;line-height:1.15;font-weight:800;letter-spacing:-.02em;color:var(--c-ink)}
.ch-hero h1 em{font-style:normal;font-size:30px;line-height:1.35;font-weight:600;color:var(--c-muted);letter-spacing:0}
.ch-hero__lead{max-width:540px;margin-top:18px;font-size:17px;line-height:1.85;color:var(--c-muted)}
.ch-hero__actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;margin-top:30px}
.ch-hero__panel{padding:28px;border-radius:var(--r-xl);background:rgba(255,255,255,.86);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--c-line);box-shadow:var(--sh-md)}
.ch-hero__panel>h2{font-size:18px;line-height:1.4}
.ch-traits{display:grid;gap:14px;margin:18px 0 0}
.ch-traits div{display:grid;grid-template-columns:72px 1fr;gap:12px;padding-bottom:14px;border-bottom:1px dashed var(--c-line-strong);font-size:15px;line-height:1.6}
.ch-traits dt{color:var(--c-faint)}
.ch-traits dd{margin:0;color:var(--c-ink);font-weight:500}
.ch-modes{display:grid;gap:10px;margin-top:16px}
.ch-mode{--m:var(--c-brand);display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:var(--r-md);background:#fff;border:1px solid var(--c-line);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.ch-mode--zk{--m:var(--c-zk)}.ch-mode--ck{--m:var(--c-ck)}.ch-mode--gk{--m:var(--c-gk)}
.ch-mode:hover{border-color:var(--m);box-shadow:var(--sh-sm);color:inherit}
.ch-mode__icon{display:grid;place-items:center;flex:none;width:40px;height:40px;border-radius:12px;background:color-mix(in srgb,var(--m) 10%,#fff);color:var(--m)}
.ch-mode__icon .icon{width:20px;height:20px}
.ch-mode>span:nth-child(2){flex:1}
.ch-mode b{display:block;font-size:16px;color:var(--c-ink)}
.ch-mode small{font-size:13px;color:var(--c-muted)}
.ch-mode>.icon{width:16px;height:16px;color:var(--c-faint)}
.ch-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:22px 0 0;padding-top:18px}
.ch-stats div{display:flex;flex-direction:column-reverse}
.ch-stats dt{font-size:12px;color:var(--c-muted)}
.ch-stats dd{margin:0;font-family:var(--f-num);font-size:28px;line-height:1.15;font-weight:700;color:var(--c-ink)}
.ch-stats dd small{margin-left:2px;font-family:var(--f-sans);font-size:13px;font-weight:500;color:var(--c-muted)}

/* 页内导航 */
.ch-subnav{position:sticky;top:var(--header-h);z-index:40;background:rgba(246,247,249,.92);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--c-line)}
.ch-subnav__inner{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none}
.ch-subnav__inner::-webkit-scrollbar{display:none}
.ch-subnav a{position:relative;flex:none;padding:15px 16px;font-size:15px;font-weight:500;color:var(--c-muted)}
.ch-subnav a:hover{color:var(--c-ink)}
.ch-subnav a[aria-current],.ch-subnav a.active{color:var(--c-ink);font-weight:700}
.ch-subnav a[aria-current]::after,.ch-subnav a.active::after{content:"";position:absolute;left:16px;right:16px;bottom:-1px;height:2px;border-radius:2px;background:var(--c-accent)}
.ch :where(section[id]){scroll-margin-top:calc(var(--header-h) + 64px)}

/* 三步 */
.ch-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:0;padding:0;list-style:none;counter-reset:step}
.ch-steps a{position:relative;display:flex;flex-direction:column;height:100%;padding:28px 28px 24px;border-radius:var(--r-lg);background:#fff;border:1px solid var(--c-line);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease)}
.ch-steps a:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:transparent;color:inherit}
.ch-steps__num{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--c-ink);color:#fff;font-family:var(--f-num);font-size:18px;font-weight:700}
.ch-steps li:first-child .ch-steps__num{background:var(--c-accent)}
.ch-steps h3{margin-top:20px;font-size:22px}
.ch-steps p{margin-top:6px;font-size:15px;color:var(--c-muted)}
.ch-steps__go{display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding-top:22px;font-size:14px;font-weight:600;color:var(--c-brand)}
.ch-steps__go .icon{width:16px;height:16px;transition:transform .2s var(--ease)}
.ch-steps a:hover .ch-steps__go .icon{transform:translateX(4px)}

/* 地区与城市 */
.ch-place{margin-top:20px;padding:20px 24px;border-radius:var(--r-lg);background:#fff;border:1px solid var(--c-line)}
.ch-place__regions{display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px}
.ch-place__regions>span{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-ink)}
.ch-place__regions>span .icon{width:18px;height:18px;color:var(--c-accent)}
.ch .channel-region-nav{display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;border:0;background:none}
.ch .channel-region-nav a{padding:7px 16px;border-radius:999px;background:var(--c-brand-tint);font-size:14px;color:var(--c-text)}
.ch .channel-region-nav a:hover{background:var(--c-brand-soft);color:var(--c-brand)}
.ch .channel-region-nav a.active{background:var(--c-brand);color:#fff}
.ch-place .city-navigation{display:grid;grid-template-columns:180px 1fr;gap:16px;margin:18px 0 0;padding:18px 0 0;border:0;border-top:1px solid var(--c-line);border-radius:0;background:none}
.ch-place .city-navigation-label b{font-size:14px;color:var(--c-ink)}
.ch-place .city-navigation-label small{font-size:12px}
.ch-place .city-links-desktop{display:flex;flex-wrap:wrap;gap:6px}
.ch-place .city-links a{padding:5px 12px;border-radius:8px;font-size:14px;color:var(--c-text);background:transparent;border:1px solid transparent}
.ch-place .city-links a:hover{border-color:var(--c-line-strong);color:var(--c-brand)}
.ch-place .city-links a.active{background:var(--c-brand-2);color:#fff;font-weight:600}

/* 院校 */
.ch-schools{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.ch-school{display:flex;align-items:center;gap:16px;padding:20px;border-radius:var(--r-lg);background:#fff;border:1px solid var(--c-line);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease)}
.ch-school:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:transparent;color:inherit}
.ch-school__logo{display:grid;place-items:center;flex:none;width:60px;height:60px;border-radius:50%;background:#fff;box-shadow:0 0 0 1px var(--c-line),0 6px 14px -8px rgba(14,32,54,.3);overflow:hidden}
.ch-school__logo .school-logo{width:100%;height:100%;object-fit:contain;padding:3px;border-radius:50%}
.ch-school__logo .school-monogram{display:grid;place-items:center;width:100%;height:100%;color:var(--c-brand)}
.ch-school__body{display:flex;flex-direction:column;min-width:0}
.ch-school__body b{font-size:17px;line-height:1.4;color:var(--c-ink)}
.ch-school__body small{margin-top:2px;font-size:13px;color:var(--c-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ch-school__go{display:inline-flex;align-items:center;gap:4px;margin-top:8px;font-size:13px;font-weight:600;color:var(--c-brand)}
.ch-school__go .icon{width:14px;height:14px}
.ch-note{margin-top:14px;font-size:13px;color:var(--c-faint)}

/* 专业 */
.ch-majors{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.ch-major{display:flex;align-items:center;gap:14px;padding:18px;border-radius:var(--r-md);background:#fff;border:1px solid var(--c-line);transition:box-shadow .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
.ch-major:hover{border-color:transparent;box-shadow:var(--sh-md);transform:translateY(-2px);color:inherit}
.ch-major__icon{display:grid;place-items:center;flex:none;width:42px;height:42px;border-radius:12px;background:color-mix(in srgb,var(--mode) 9%,#fff);color:var(--mode)}
.ch-major__icon .icon{width:20px;height:20px}
.ch-major__body{flex:1;min-width:0}
.ch-major__body b{display:block;font-size:16px;color:var(--c-ink)}
.ch-major__body small{display:block;font-size:12px;line-height:1.5;color:var(--c-muted)}
.ch-major>.icon{width:15px;height:15px;color:var(--c-faint)}
.ch-banner{display:flex;align-items:center;gap:14px;margin-top:16px;padding:16px 20px;border-radius:var(--r-md);background:var(--c-brand-tint);border:1px solid var(--c-line)}
.ch-banner:hover{border-color:var(--c-line-strong);color:inherit}
.ch-banner__icon{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:#fff;color:var(--c-brand)}
.ch-banner__icon .icon{width:19px;height:19px}
.ch-banner b{display:block;font-size:15px;color:var(--c-ink)}
.ch-banner small{font-size:13px;color:var(--c-muted)}
.ch-banner__go{display:inline-flex;align-items:center;gap:6px;margin-left:auto;font-size:14px;font-weight:600;color:var(--c-brand);white-space:nowrap}
.ch-banner__go .icon{width:16px;height:16px}
.ch-empty{display:flex;gap:16px;padding:28px;border-radius:var(--r-lg);background:#fff;border:1px dashed var(--c-line-strong)}
.ch-empty>.icon{width:28px;height:28px;color:var(--c-faint);flex:none}
.ch-empty h3{font-size:17px}
.ch-empty p{margin:6px 0 12px;font-size:14px;color:var(--c-muted)}

/* 课程计划 */
.ch-courses{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.ch-course{display:flex;flex-direction:column;gap:6px;padding:22px;border-radius:var(--r-lg);background:linear-gradient(160deg,#fff 0%,var(--c-brand-tint) 100%);border:1px solid var(--c-line);transition:box-shadow .2s var(--ease),transform .2s var(--ease)}
.ch-course:hover{box-shadow:var(--sh-md);transform:translateY(-2px);color:inherit}
.ch-course small{font-size:12px;color:var(--c-muted)}
.ch-course b{font-size:19px;color:var(--c-ink)}
.ch-course span{display:inline-flex;align-items:center;gap:6px;margin-top:8px;font-size:14px;font-weight:600;color:var(--mode)}
.ch-course span .icon{width:15px;height:15px}

/* 资料区（channel-resources 片段） */
.ch .topic-resources{margin:0;padding:0;border:0;background:none;box-shadow:none}
.ch .topic-section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px}
.ch .topic-section-heading>div>span{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--c-accent-strong)}
.ch .topic-section-heading>div>span::before{content:"";width:18px;height:2px;border-radius:2px;background:currentColor}
.ch .topic-section-heading h2{margin-top:10px;font-size:32px;line-height:1.3}
.ch .topic-section-heading>a{font-size:14px;font-weight:600;color:var(--c-brand)}
.ch .topic-resource-kinds{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 16px}
.ch .topic-resource-kinds a{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;background:#fff;border:1px solid var(--c-line);font-size:14px;color:var(--c-text)}
.ch .topic-resource-kinds a:hover{border-color:var(--c-brand);color:var(--c-brand)}
.ch .topic-resource-kinds b{font-family:var(--f-num);font-size:13px;font-weight:600;color:var(--c-faint)}
.ch .topic-resource-search{display:flex;align-items:center;gap:16px;margin:0 0 8px;padding:0;border:0;background:none}
.ch .topic-resource-search>label{flex:none;font-size:14px;color:var(--c-muted)}
.ch .topic-resource-search>div{position:relative;display:flex;align-items:center;flex:1;max-width:620px;height:50px;padding:0 5px 0 44px;border-radius:999px;background:#fff;border:1px solid var(--c-line-strong)}
.ch .topic-resource-search>div:focus-within{border-color:var(--c-brand-2);box-shadow:0 0 0 4px rgba(36,80,137,.1)}
.ch .topic-resource-search .icon{position:absolute;left:16px;width:18px;height:18px;color:var(--c-faint)}
.ch .topic-resource-search input{flex:1;min-width:0;height:100%;border:0;background:transparent;font-size:15px;outline:0}
.ch .topic-resource-search button{height:40px;padding:0 22px;border:0;border-radius:999px;background:var(--c-brand);color:#fff;font-size:14px;font-weight:600}
.ch .topic-resource-note{margin:12px 0 0;font-size:13px;color:var(--c-faint)}
.ch .topic-reading-list{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}
.ch .listing-row{display:flex;gap:18px;padding:22px;border-radius:var(--r-lg);background:#fff;border:1px solid var(--c-line);transition:box-shadow .2s var(--ease),border-color .2s var(--ease)}
.ch .listing-row:hover{border-color:transparent;box-shadow:var(--sh-md);color:inherit}
.ch .listing-row-copy{display:flex;flex-direction:column;flex:1;min-width:0}
.ch .listing-row-tags{display:flex;flex-wrap:wrap;gap:6px}
.ch .listing-row-tags span{padding:2px 8px;border-radius:6px;background:var(--c-brand-tint);font-size:12px;color:var(--c-muted)}
.ch .listing-row-tags span:first-child{background:var(--c-accent-soft);color:var(--c-accent-strong);font-weight:600}
.ch .listing-row h3{margin-top:10px;font-size:17px;line-height:1.5;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ch .listing-row p{margin-top:6px;font-size:14px;line-height:1.7;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ch .listing-row-meta{display:flex;flex-wrap:wrap;gap:4px 14px;margin-top:auto;padding-top:12px;font-size:12px;color:var(--c-faint)}
.ch .listing-row-read{display:none}
.ch .listing-row-image{flex:none;align-self:flex-start;width:120px;height:84px;border-radius:var(--r-sm);object-fit:cover;background:var(--c-brand-tint)}
.ch .topic-resource-empty{padding:28px;border-radius:var(--r-lg);background:#fff;border:1px dashed var(--c-line-strong)}

/* 学习方法 */
.ch-stories{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ch-story{display:flex;flex-direction:column;border-radius:var(--r-lg);background:#fff;border:1px solid var(--c-line);overflow:hidden;transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.ch-story:hover{transform:translateY(-4px);box-shadow:var(--sh-md);color:inherit}
.ch-story__media{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--c-brand-tint)}
.ch-story__media img{width:100%;height:100%;object-fit:cover}
.ch-story__body{display:flex;flex-direction:column;gap:4px;padding:20px 22px 24px}
.ch-story__body small{font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--c-accent-strong)}
.ch-story__body b{font-size:19px;line-height:1.45;color:var(--c-ink)}
.ch-story__body span{font-size:14px;color:var(--c-muted)}

/* FAQ */
.ch-faq{display:grid;grid-template-columns:340px 1fr;gap:56px;align-items:start}
.ch-faq__intro h2{margin-top:10px;font-size:32px}
.ch-faq__intro p{margin:10px 0 18px;font-size:15px;color:var(--c-muted)}
.ch-faq__list{border-top:1px solid var(--c-line)}
.ch-faq__list details{border-bottom:1px solid var(--c-line)}
.ch-faq__list summary{position:relative;display:block;padding:22px 48px 22px 0;font-size:17px;font-weight:600;color:var(--c-ink);cursor:pointer;list-style:none}
.ch-faq__list summary::-webkit-details-marker{display:none}
.ch-faq__list summary>span{position:absolute;right:4px;top:50%;width:28px;height:28px;margin-top:-14px;border-radius:50%;background:var(--c-brand-tint)}
.ch-faq__list summary>span::before,.ch-faq__list summary>span::after{content:"";position:absolute;left:8px;right:8px;top:13px;height:2px;border-radius:2px;background:var(--c-brand);transition:transform .2s var(--ease)}
.ch-faq__list summary>span::after{transform:rotate(90deg)}
.ch-faq__list details[open] summary>span::after{transform:rotate(0)}
.ch-faq__list details>div{padding:0 48px 22px 0}
.ch-faq__list details p{font-size:15px;line-height:1.9;color:var(--c-muted)}
.ch-faq__list details a{display:inline-block;margin-top:10px;font-size:14px;font-weight:600;color:var(--c-brand)}

@media(max-width:1180px){
  .ch-hero h1{font-size:44px}
  .ch-hero__grid{gap:36px}
  .ch-majors{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:1023px){
  .ch-hero__grid{grid-template-columns:minmax(0,1fr)}
  .ch-schools{grid-template-columns:repeat(2,1fr)}
  .ch-majors{grid-template-columns:repeat(2,1fr)}
  .ch .topic-reading-list{grid-template-columns:1fr}
  .ch-faq{grid-template-columns:minmax(0,1fr);gap:20px}
}
@media(max-width:760px){
  .ch-section{padding-top:48px}
  .ch-hero{padding:22px 0 32px}
  .ch-hero__kicker{font-size:12px}
  .ch-hero h1{margin-top:14px;font-size:34px}
  .ch-hero h1 em{font-size:20px}
  .ch-hero__lead{margin-top:10px;font-size:15px}
  .ch-hero__actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}
  .ch-hero__actions .btn{padding:0 10px;font-size:14px}
  .ch-hero__actions .text-link{grid-column:1/-1;justify-self:start}
  .ch-hero__panel{padding:18px;border-radius:var(--r-lg)}
  .ch-hero__panel>h2{font-size:16px}
  .ch-traits{gap:10px;margin-top:12px}
  .ch-traits div{grid-template-columns:62px 1fr;padding-bottom:10px;font-size:14px}
  .ch-stats{margin-top:14px;padding-top:6px}
  .ch-stats dd{font-size:22px}
  .ch-subnav a{padding:12px 12px;font-size:14px}
  .ch-subnav a[aria-current]::after,.ch-subnav a.active::after{left:12px;right:12px}
  .ch-steps{grid-template-columns:1fr;gap:10px}
  .ch-steps a{display:grid;grid-template-columns:40px 1fr auto;column-gap:14px;align-items:center;padding:16px}
  .ch-steps h3{margin:0;font-size:17px}
  .ch-steps p{grid-column:2;margin:2px 0 0;font-size:13px}
  .ch-steps__num{grid-row:1/3}
  .ch-steps__go{grid-column:3;grid-row:1/3;padding:0;font-size:0}
  .ch-steps__go .icon{width:18px;height:18px}
  .ch-place{padding:16px}
  .ch-place .city-navigation{grid-template-columns:1fr;gap:10px}
  .ch-place .city-links-desktop{display:none}
  .ch-place .city-mobile-picker summary{padding:10px 12px;border-radius:var(--r-sm);background:var(--c-brand-tint);font-size:14px}
  .ch .ch-schools{display:flex;gap:12px;margin-inline:-16px;padding:4px 16px 8px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
  .ch-schools::-webkit-scrollbar{display:none}
  .ch .ch-school{flex:0 0 82%;scroll-snap-align:start;padding:16px}
  .ch-school__logo{width:52px;height:52px}
  .ch-majors{gap:10px}
  .ch-major{gap:10px;padding:12px}
  .ch-major__icon{width:36px;height:36px;border-radius:10px}
  .ch-major__body b{font-size:15px}
  .ch-major>.icon{display:none}
  .ch-banner{flex-wrap:wrap;padding:14px 16px}
  .ch-banner__go{margin-left:52px}
  .ch-courses{grid-template-columns:1fr;gap:10px}
  .ch-course{padding:16px 18px}
  .ch .topic-section-heading{flex-direction:column;align-items:flex-start;gap:8px}
  .ch .topic-section-heading h2{font-size:23px}
  .ch .topic-resource-kinds{flex-wrap:nowrap;overflow-x:auto;margin-inline:-16px;padding:0 16px;scrollbar-width:none}
  .ch .topic-resource-kinds::-webkit-scrollbar{display:none}
  .ch .topic-resource-kinds a{flex:none}
  .ch .topic-resource-search{flex-direction:column;align-items:stretch;gap:8px}
  .ch .topic-resource-search>div{height:48px}
  .ch .listing-row{padding:16px;gap:12px}
  .ch .listing-row h3{font-size:16px}
  .ch .listing-row p{display:none}
  .ch .listing-row-image{width:88px;height:66px}
  .ch-stories{grid-template-columns:1fr;gap:12px}
  .ch-story{flex-direction:row}
  .ch-story__media{flex:0 0 36%;aspect-ratio:auto}
  .ch-story__body{padding:14px 16px}
  .ch-story__body b{font-size:16px}
  .ch-story__body span{display:none}
  .ch-faq__intro h2{font-size:23px}
  .ch-faq__list summary{padding:18px 44px 18px 0;font-size:15px}
  .ch-faq__list details>div{padding-right:0}
  .ch+.site-footer,.ch~.site-footer{margin-top:96px}
}
.ch-hero>.breadcrumb{padding-top:0;margin-bottom:22px}
.ch .ch-schools+.ch-note,.ch .ch-courses+.ch-note{margin-top:16px}
.ch-place .city-links a.active{border-color:transparent;box-shadow:none;border-bottom:0}