/* roulang page: index */
:root{
  --c-primary:#2C6FB5;
  --c-primary-deep:#1B4F86;
  --c-primary-soft:#E8F1FA;
  --c-primary-line:#C6DCF2;
  --c-accent:#C8A05A;
  --c-accent-deep:#9A7440;
  --c-bg:#F7F9FC;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFF4FA;
  --c-footer:#103A5C;
  --t-strong:#0F1B2D;
  --t-body:#41506A;
  --t-muted:#7B8AA0;
  --t-white:#FFFFFF;
  --t-disabled:#A9B5C6;
  --c-ok:#1E9E6A;
  --c-warn:#D98C1F;
  --c-err:#D64545;
  --c-border:#E4EBF3;
  --c-skeleton:#EAF0F7;
  --r-s:10px;
  --r-m:14px;
  --r-l:18px;
  --r-p:999px;
  --sh-sm:0 1px 2px rgba(15,27,45,.06);
  --sh-md:0 8px 24px rgba(15,27,45,.08);
  --sh-lg:0 18px 48px rgba(15,27,45,.10);
  --container:1200px;
  --ease:200ms ease;
  --f-body:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --f-num:"Inter",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--f-body);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  color:var(--t-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;color:var(--t-strong);line-height:1.3;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:100px 0}
.section-alt{background:var(--c-surface-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:30px;letter-spacing:-.2px}
.section-head .section-note{font-size:14px;color:var(--t-muted);max-width:560px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary);letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-accent);border-radius:2px}
.link-more{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;transition:color var(--ease),gap var(--ease)}
.link-more::after{content:"→";font-size:15px;line-height:1}
.link-more:hover{color:var(--c-primary-deep);gap:10px}

/* 公告与实时状态条 */
.notice-bar{background:var(--c-primary-soft);border-bottom:1px solid var(--c-primary-line)}
.notice-inner{display:flex;align-items:center;gap:12px;min-height:36px;padding:6px 24px;max-width:var(--container);margin:0 auto;font-size:13px;color:var(--c-primary-deep)}
.notice-dot{width:8px;height:8px;border-radius:50%;background:var(--c-ok);box-shadow:0 0 0 4px rgba(30,158,106,.14);flex:none}
.notice-text{font-weight:500}
.notice-sep{color:var(--c-primary-line)}
.notice-meta{color:var(--t-muted)}
.notice-link{margin-left:auto;font-weight:600;color:var(--c-primary-deep);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.notice-link::after{content:"›";font-size:16px;line-height:1}
.notice-link:hover{color:var(--c-primary)}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:80;background:var(--c-surface);border-bottom:1px solid var(--c-border);transition:box-shadow var(--ease),height var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh-md)}
.header-inner{display:flex;align-items:center;gap:32px;height:72px;transition:height var(--ease)}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;gap:3px;box-shadow:var(--sh-sm)}
.brand-mark span{display:block;width:3px;border-radius:2px;background:#fff}
.brand-mark span:nth-child(1){height:10px;opacity:.7}
.brand-mark span:nth-child(2){height:16px}
.brand-mark span:nth-child(3){height:12px;opacity:.85}
.brand-text{font-size:19px;font-weight:700;color:var(--t-strong);letter-spacing:.01em}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:12px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--t-body);padding:6px 0;transition:color var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-ghost{font-size:14px;font-weight:500;color:var(--t-muted);transition:color var(--ease)}
.nav-ghost:hover{color:var(--c-primary)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-s);font-weight:600;line-height:1.2;transition:background var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease),border-color var(--ease);border:1px solid transparent;white-space:nowrap;min-height:44px;padding:0 22px;font-size:15px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-sm)}
.btn-primary:hover{background:var(--c-primary-deep);box-shadow:var(--sh-md);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--c-surface);color:var(--c-primary-deep);border-color:var(--c-primary-line)}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-soft)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-outline-light:hover{background:rgba(255,255,255,.14)}
.btn-sm{min-height:44px;padding:0 18px;font-size:14px;border-radius:var(--r-p)}
.btn-lg{min-height:52px;padding:0 28px;font-size:16px}
.btn-block{width:100%}
.burger{display:none;width:44px;height:44px;border-radius:var(--r-s);align-items:center;justify-content:center;flex-direction:column;gap:5px;border:1px solid var(--c-border)}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t-strong);transition:transform var(--ease),opacity var(--ease)}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(15,27,45,.45);opacity:0;pointer-events:none;transition:opacity var(--ease);z-index:90}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;bottom:0;width:84%;max-width:360px;background:var(--c-surface);z-index:100;transform:translateX(102%);transition:transform 260ms ease;display:flex;flex-direction:column;box-shadow:var(--sh-lg)}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--c-border)}
.drawer-title{font-size:16px;font-weight:700;color:var(--t-strong)}
.drawer-close{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;font-size:22px;color:var(--t-muted);border-radius:var(--r-s)}
.drawer-close:hover{background:var(--c-surface-alt);color:var(--t-strong)}
.drawer-links{display:flex;flex-direction:column;padding:8px 0;overflow-y:auto;flex:1}
.drawer-links a{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;font-size:16px;font-weight:500;color:var(--t-body);border-bottom:1px solid var(--c-border)}
.drawer-links a::after{content:"›";color:var(--t-muted)}
.drawer-links a:hover,.drawer-links a.active{color:var(--c-primary);background:var(--c-primary-soft)}
.drawer-foot{padding:16px 20px 24px;border-top:1px solid var(--c-border)}

/* Hero */
.hero{position:relative;background:var(--c-surface);overflow:hidden}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center right;opacity:.85}
.hero-veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.86) 52%,rgba(255,255,255,.74) 100%)}
.hero-inner{position:relative;display:grid;grid-template-columns:55fr 45fr;gap:48px;align-items:center;padding:88px 0 84px}
.badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-p);background:var(--c-primary-soft);border:1px solid var(--c-primary-line);color:var(--c-primary-deep);font-size:13px;font-weight:600}
.badge .badge-dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
.hero h1{font-size:46px;line-height:1.24;letter-spacing:-.6px;margin:20px 0 18px}
.hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-sub{font-size:18px;line-height:1.75;color:var(--t-body);max-width:560px}
.hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-metrics{display:flex;gap:40px;margin-top:44px;padding-top:26px;border-top:1px solid var(--c-border);flex-wrap:wrap}
.metric{min-width:120px}
.metric-num{font-family:var(--f-num);font-size:24px;font-weight:700;color:var(--c-primary);line-height:1.2}
.metric-num small{font-size:14px;font-weight:600;margin-left:2px}
.metric-label{font-size:13px;color:var(--t-muted);margin-top:4px}
.hero-visual{position:relative}
.hero-card{position:relative;border-radius:var(--r-l);overflow:hidden;border:6px solid #fff;box-shadow:var(--sh-lg);background:var(--c-skeleton);aspect-ratio:4/3}
.hero-card img{width:100%;height:100%;object-fit:cover}
.hero-float{position:absolute;left:-18px;bottom:26px;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-m);box-shadow:var(--sh-md);padding:14px 18px;display:flex;align-items:center;gap:12px;max-width:250px}
.hero-float .pulse{width:10px;height:10px;border-radius:50%;background:var(--c-ok);flex:none;box-shadow:0 0 0 5px rgba(30,158,106,.14)}
.hero-float b{display:block;font-size:14px;color:var(--t-strong)}
.hero-float span{font-size:12px;color:var(--t-muted)}

/* 刻度条 */
.scale-band{background:var(--c-surface);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);padding:56px 0}
.scale-line{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding-top:28px}
.scale-line::before{content:"";position:absolute;top:6px;left:0;right:0;height:1px;background:var(--c-border)}
.scale-node{position:relative;padding-right:16px}
.scale-node::before{content:"";position:absolute;top:0;left:0;width:13px;height:13px;border-radius:50%;background:var(--c-surface);border:3px solid var(--c-primary);transform:translateY(-1px)}
.scale-num{font-family:var(--f-num);font-size:13px;font-weight:700;color:var(--c-accent-deep);letter-spacing:.1em}
.scale-name{font-size:16px;font-weight:600;color:var(--t-strong);margin-top:6px}
.scale-desc{font-size:14px;color:var(--t-muted);margin-top:6px;line-height:1.7}

/* 故事区 */
.story{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:center}
.story-media{position:relative;border-radius:var(--r-m);overflow:hidden;background:var(--c-skeleton);aspect-ratio:4/3;box-shadow:var(--sh-md)}
.story-media img{width:100%;height:100%;object-fit:cover}
.story-seal{position:absolute;top:18px;left:18px;background:var(--c-accent);color:#fff;font-size:12px;font-weight:600;padding:8px 10px;border-radius:6px;letter-spacing:.06em;line-height:1.4;text-align:center;box-shadow:var(--sh-sm)}
.story-text h2{font-size:30px;margin-bottom:20px;letter-spacing:-.2px}
.story-text p{font-size:16px;margin-bottom:1em;line-height:1.85}
.story-text p:last-of-type{margin-bottom:0}
.story-points{margin-top:26px;display:grid;gap:12px}
.story-points li{position:relative;padding-left:22px;font-size:15px;color:var(--t-body)}
.story-points li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:50%;background:var(--c-primary)}

/* 精选内容卡 */
.picks-grid{display:grid;grid-template-columns:1.12fr 1fr;grid-template-rows:auto auto;gap:24px}
.pick{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-border);border-radius:16px;overflow:hidden;box-shadow:var(--sh-md);transition:transform 300ms ease,box-shadow 300ms ease,border-color 300ms ease}
.pick:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:rgba(44,111,181,.4)}
.pick-media{position:relative;overflow:hidden;background:var(--c-skeleton)}
.pick-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease}
.pick:hover .pick-media img{transform:scale(1.03)}
.pick-1{grid-row:1 / span 2}
.pick-1 .pick-media{aspect-ratio:16/11;flex:none}
.pick-2 .pick-media,.pick-3 .pick-media{aspect-ratio:16/9;flex:none}
.pick-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.pick-tag{align-self:flex-start;font-size:12px;font-weight:600;color:var(--c-accent-deep);border:1px solid var(--c-accent);border-radius:6px;padding:3px 8px;background:rgba(200,160,90,.08)}
.pick-body h3{font-size:20px;line-height:1.4}
.pick-2 .pick-body h3,.pick-3 .pick-body h3{font-size:18px}
.pick-body p{font-size:14px;color:var(--t-muted);line-height:1.75}
.pick-foot{margin-top:auto;padding-top:12px;font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.pick-foot::after{content:"→";transition:transform var(--ease)}
.pick:hover .pick-foot::after{transform:translateX(4px)}

/* 最新信息列表 */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px}
.news-item{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--c-border);transition:background var(--ease)}
.news-item:hover{background:var(--c-surface-alt)}
.news-thumb{flex:none;width:160px;height:104px;border-radius:10px;overflow:hidden;background:var(--c-skeleton);position:relative}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease}
.news-item:hover .news-thumb img{transform:scale(1.04)}
.news-body{flex:1;min-width:0;display:flex;flex-direction:column}
.news-meta-top{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.news-cat{font-size:12px;font-weight:600;color:var(--c-accent-deep);border:1px solid var(--c-accent);border-radius:6px;padding:2px 8px;background:rgba(200,160,90,.08);white-space:nowrap}
.news-title{font-size:17px;font-weight:600;color:var(--t-strong);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item:hover .news-title{color:var(--c-primary)}
.news-sum{font-size:14px;color:var(--t-muted);line-height:1.7;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;padding-top:10px;display:flex;align-items:center;gap:14px;font-size:13px;color:var(--t-muted)}
.news-foot .clock{display:inline-flex;align-items:center;gap:6px}
.news-foot .clock::before{content:"";width:12px;height:12px;border-radius:50%;border:1.5px solid var(--t-muted);display:inline-block}
.news-foot .arrow{margin-left:auto;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:4px}
.news-empty{grid-column:1 / -1;text-align:center;padding:64px 24px;background:var(--c-surface);border:1px dashed var(--c-border);border-radius:var(--r-m)}
.news-empty .empty-icon{width:56px;height:56px;margin:0 auto 16px;border-radius:14px;background:var(--c-skeleton);display:flex;align-items:center;justify-content:center;color:var(--t-muted);font-size:22px}
.news-empty p{font-size:15px;color:var(--t-muted);margin-bottom:18px}

/* 信任背书 */
.proof-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-l);padding:36px 32px;box-shadow:var(--sh-sm)}
.proof-stat{border-left:1px solid var(--c-border);padding-left:24px}
.proof-stat:first-child{border-left:none;padding-left:0}
.proof-num{font-family:var(--f-num);font-size:30px;font-weight:700;color:var(--c-primary);line-height:1.2}
.proof-num small{font-size:16px;margin-left:2px}
.proof-label{font-size:13px;color:var(--t-muted);margin-top:6px}
.quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:36px}
.quote{background:var(--c-surface);border:1px solid var(--c-border);border-left:3px solid var(--c-primary);border-radius:var(--r-m);padding:26px 28px;box-shadow:var(--sh-sm)}
.quote p{font-size:15px;line-height:1.85;color:var(--t-body)}
.quote cite{display:block;margin-top:16px;font-style:normal;font-size:13px;color:var(--t-muted)}
.partners{margin-top:36px;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--c-border);border:1px solid var(--c-border);border-radius:var(--r-m);overflow:hidden}
.partner{background:var(--c-surface);padding:22px 12px;text-align:center;font-size:14px;font-weight:500;color:var(--t-muted);filter:grayscale(1);opacity:.72;transition:opacity var(--ease),color var(--ease),filter var(--ease),background var(--ease)}
.partner:hover{opacity:1;filter:none;color:var(--c-primary-deep);background:var(--c-primary-soft)}

/* FAQ */
.faq-list{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-m);overflow:hidden;box-shadow:var(--sh-sm)}
.faq-item{border-bottom:1px solid var(--c-border)}
.faq-item:last-child{border-bottom:none}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 26px;font-size:16px;font-weight:600;color:var(--t-strong);cursor:pointer;list-style:none;transition:background var(--ease),color var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--c-border);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-size:16px;line-height:1;transition:transform var(--ease),background var(--ease),color var(--ease)}
.faq-item[open] summary::after{content:"−";background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:rotate(180deg)}
.faq-item summary:hover{background:var(--c-surface-alt);color:var(--c-primary)}
.faq-answer{padding:0 26px 24px 26px;position:relative}
.faq-answer::before{content:"";position:absolute;left:26px;top:4px;bottom:24px;width:3px;border-radius:3px;background:var(--c-primary);opacity:.5}
.faq-answer p{font-size:15px;line-height:1.85;padding-left:18px}

/* 订阅 CTA */
.cta-panel{background:var(--c-primary-soft);border:1px solid var(--c-primary-line);border-radius:var(--r-l);padding:56px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.cta-panel h2{font-size:24px;margin-bottom:12px}
.cta-panel .cta-note{font-size:16px;color:var(--t-body);max-width:440px}
.cta-form{display:flex;gap:12px;align-items:flex-start}
.cta-field{flex:1;min-width:0}
.cta-input{width:100%;height:52px;padding:0 18px;border-radius:var(--r-s);border:1px solid var(--c-primary-line);background:#fff;color:var(--t-strong);transition:border-color var(--ease),box-shadow var(--ease)}
.cta-input::placeholder{color:var(--t-muted)}
.cta-input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(44,111,181,.14)}
.cta-input.is-error{border-color:var(--c-err);box-shadow:0 0 0 3px rgba(214,69,69,.12)}
.cta-help{font-size:13px;color:var(--c-err);margin-top:8px;display:none}
.cta-help.is-show{display:block}
.cta-ok{font-size:13px;color:var(--c-ok);margin-top:8px;display:none}
.cta-ok.is-show{display:block}
.cta-fine{font-size:13px;color:var(--t-muted);margin-top:14px}

/* 页脚 */
.site-footer{background:var(--c-footer);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);box-shadow:none}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;margin-top:16px;max-width:300px}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color var(--ease),padding-left var(--ease)}
.footer-col a:hover{color:var(--c-accent);padding-left:4px}
.footer-contact li{font-size:14px;display:flex;gap:10px;align-items:flex-start}
.footer-contact span{color:rgba(255,255,255,.5);flex:none}
.footer-sub{margin-top:18px;font-size:13px;color:rgba(255,255,255,.56)}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.14);padding:22px 0 28px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.56)}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:var(--c-accent)}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}

/* 骨架与图片降级 */
.img-shell{position:relative;background:var(--c-skeleton)}
.img-shell::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.5),transparent);transform:translateX(-100%);animation:shimmer 1.6s infinite}
.img-shell.is-loaded::after{display:none}
@keyframes shimmer{to{transform:translateX(100%)}}

/* 响应式 */
@media (max-width:1279px){
  .hero-inner{grid-template-columns:50fr 50fr;gap:36px;padding:76px 0 72px}
  .hero h1{font-size:40px}
  .news-grid{gap:0 32px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .nav-links{display:none}
  .nav-ghost{display:none}
  .burger{display:inline-flex}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:64px 0}
  .hero-visual{order:2}
  .hero-card{aspect-ratio:16/9}
  .hero-float{left:auto;right:16px;bottom:-18px}
  .scale-line{grid-template-columns:repeat(2,1fr);gap:32px 24px}
  .scale-line::before{display:none}
  .scale-node::before{position:static;display:block;margin-bottom:10px}
  .story{grid-template-columns:1fr;gap:36px}
  .picks-grid{grid-template-columns:1fr}
  .pick-1{grid-row:auto}
  .pick-1 .pick-media{aspect-ratio:16/9}
  .news-grid{grid-template-columns:1fr}
  .quotes{grid-template-columns:1fr}
  .partners{grid-template-columns:repeat(2,1fr)}
  .proof-stats{grid-template-columns:repeat(2,1fr);gap:28px}
  .proof-stat:nth-child(3){border-left:none;padding-left:0}
  .cta-panel{grid-template-columns:1fr;padding:40px 32px;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .section-head h2{font-size:24px}
  .hero h1{font-size:30px;letter-spacing:-.2px}
  .hero-sub{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-metrics{gap:24px;margin-top:32px}
  .hero-float{position:static;margin-top:16px;max-width:none;left:auto;right:auto;bottom:auto}
  .story-seal{top:12px;left:12px}
  .story-text h2{font-size:24px}
  .news-item{flex-direction:column;gap:12px}
  .news-thumb{width:100%;height:auto;aspect-ratio:16/9}
  .proof-stats{grid-template-columns:1fr;padding:26px 22px}
  .proof-stat{border-left:none;padding-left:0;border-top:1px solid var(--c-border);padding-top:18px}
  .proof-stat:first-child{border-top:none;padding-top:0}
  .partners{grid-template-columns:1fr}
  .faq-item summary{padding:18px 18px;font-size:15px;gap:12px}
  .faq-answer{padding:0 18px 20px}
  .faq-answer::before{left:18px}
  .cta-panel{padding:32px 22px}
  .cta-form{flex-direction:column;align-items:stretch}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:12px}
  .brand-text{font-size:17px}
}
@media (max-width:519px){
  .hero h1{font-size:27px}
  .scale-line{grid-template-columns:1fr}
  .metric{min-width:0}
  .hero-metrics{gap:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --c-primary:#2C6FB5;
  --c-primary-deep:#1B4F86;
  --c-primary-soft:#E8F1FA;
  --c-primary-line:#C6DCF2;
  --c-accent:#C8A05A;
  --c-accent-deep:#9A7440;
  --c-bg:#F7F9FC;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFF4FA;
  --c-footer:#103A5C;
  --t-strong:#0F1B2D;
  --t-body:#41506A;
  --t-muted:#7B8AA0;
  --t-disabled:#A9B5C6;
  --line:#E4EBF3;
  --ok:#1E9E6A;
  --warn:#D98C1F;
  --err:#D64545;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(15,27,45,.06);
  --sh-md:0 8px 24px rgba(15,27,45,.08);
  --sh-lg:0 18px 48px rgba(15,27,45,.10);
  --container:1200px;
  --ease:cubic-bezier(.25,.7,.35,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--t-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;color:var(--t-strong);line-height:1.3;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-sm);
  font-size:15px;font-weight:500;line-height:1.2;
  border:1px solid transparent;transition:all .2s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-sm)}
.btn-primary:hover{background:var(--c-primary-deep);box-shadow:var(--sh-md);transform:translateY(-1px)}
.btn-outline{border-color:var(--c-primary-line);color:var(--c-primary);background:var(--c-surface)}
.btn-outline:hover{background:var(--c-primary-soft);border-color:var(--c-primary)}
.btn-ghost{color:var(--t-body)}
.btn-ghost:hover{color:var(--c-primary)}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;cursor:default;transform:none;box-shadow:none}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-md)}
.header-inner{
  display:flex;align-items:center;gap:32px;
  height:72px;transition:height .25s var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{position:relative;width:30px;height:30px;display:inline-block;border-radius:9px;background:var(--c-primary-soft);border:1px solid var(--c-primary-line)}
.brand-mark span{position:absolute;background:var(--c-primary);border-radius:2px}
.brand-mark span:nth-child(1){left:7px;top:8px;width:4px;height:14px}
.brand-mark span:nth-child(2){left:13px;top:8px;width:4px;height:9px;background:var(--c-accent)}
.brand-mark span:nth-child(3){left:19px;top:8px;width:4px;height:14px;background:var(--c-primary-deep)}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.2px;color:var(--t-strong)}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--t-body);
  padding:6px 0;line-height:1.2;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:18px}
.link-ghost{font-size:15px;color:var(--t-muted)}
.link-ghost:hover{color:var(--c-primary)}
.btn-cta{border-radius:var(--r-pill);padding:0 24px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--c-surface);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t-strong);border-radius:2px;transition:transform .25s var(--ease),opacity .2s var(--ease)}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(15,27,45,.45);z-index:80;opacity:0;pointer-events:none;transition:opacity .25s var(--ease)}
.drawer-mask.show{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84%;max-width:360px;z-index:90;
  background:var(--c-surface);box-shadow:var(--sh-lg);
  transform:translateX(102%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:20px;
}
.drawer.show{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);font-size:20px;color:var(--t-body);line-height:1}
.drawer-links{margin-top:8px;flex:1;overflow-y:auto}
.drawer-links a{display:block;padding:15px 2px;font-size:16px;font-weight:500;color:var(--t-strong);border-bottom:1px solid var(--line)}
.drawer-links a:hover{color:var(--c-primary)}
.drawer-cta{margin-top:16px}

/* ---------- breadcrumb ---------- */
.crumb-bar{padding:26px 0 6px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t-muted)}
.breadcrumb a{color:var(--t-muted)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-primary-line)}
.breadcrumb .now{color:var(--t-body);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 280px;
  gap:48px;padding-top:22px;padding-bottom:72px;align-items:start;
}
.article-main{min-width:0}
.badge-seal{
  display:inline-block;padding:3px 10px;border-radius:var(--r-xs);
  border:1px solid var(--c-accent);color:var(--c-accent-deep);
  background:#FDF9F1;font-size:12px;font-weight:600;letter-spacing:.4px;
}
.article-head h1{
  font-size:34px;line-height:1.34;margin:16px 0 18px;letter-spacing:-.2px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--t-muted)}
.meta-row .dot{width:1px;height:12px;background:var(--line)}
.article-cover{margin:26px 0 34px}
.article-cover .frame{
  position:relative;width:100%;aspect-ratio:16/9;border-radius:var(--r-md);
  overflow:hidden;background:#EAF0F7;box-shadow:var(--sh-md);
}
.article-cover img{width:100%;height:100%;object-fit:cover}
.article-body{max-width:760px}
.prose{font-size:17px;line-height:1.9;color:var(--t-body)}
.prose p{margin:0 0 1.2em}
.prose h2{
  position:relative;font-size:22px;line-height:1.4;color:var(--t-strong);
  margin:48px 0 16px;padding-left:16px;
}
.prose h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:2px;background:var(--c-primary)}
.prose h3{font-size:18px;font-weight:600;color:var(--t-strong);margin:32px 0 12px}
.prose h4{font-size:16px;font-weight:600;color:var(--t-strong);margin:24px 0 10px}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:22px}
.prose ul li{list-style:disc;margin:.42em 0}
.prose ol li{list-style:decimal;margin:.42em 0}
.prose ul li::marker{color:var(--c-primary)}
.prose ol li::marker{color:var(--c-primary);font-weight:600}
.prose a{color:var(--c-primary);border-bottom:1px solid var(--c-primary-line)}
.prose a:hover{color:var(--c-primary-deep);border-color:var(--c-primary)}
.prose blockquote{
  margin:24px 0;padding:16px 20px;background:#F2F6FB;
  border-left:3px solid var(--c-accent);border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--t-body);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:var(--r-md);margin:24px auto;box-shadow:var(--sh-sm)}
.prose figure{margin:24px 0}
.prose figcaption{font-size:13px;color:var(--t-muted);text-align:center;margin-top:10px}
.prose table{width:100%;min-width:520px;border-collapse:collapse;font-size:15px;background:var(--c-surface)}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.prose th{background:var(--c-surface-alt);font-weight:600;color:var(--t-strong);white-space:nowrap}
.prose code{background:var(--c-surface-alt);border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:14px}
.prose hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.empty-state{
  background:var(--c-surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;box-shadow:var(--sh-sm);
}
.empty-state .icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;
  background:var(--c-surface-alt);display:flex;align-items:center;justify-content:center;
  color:var(--c-primary);font-size:26px;font-weight:700;
}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--t-muted);margin-bottom:22px}

/* ---------- tags ---------- */
.tag-block{margin-top:44px;padding-top:24px;border-top:1px solid var(--line)}
.tag-block .label{font-size:13px;color:var(--t-muted);margin-bottom:12px;letter-spacing:.5px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;min-height:34px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:var(--c-surface);
  font-size:13px;color:var(--t-body);transition:all .2s var(--ease);
}
.tag:hover{border-color:var(--c-primary-line);color:var(--c-primary);background:var(--c-primary-soft)}

/* ---------- next links ---------- */
.next-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px}
.next-card{
  display:flex;align-items:center;gap:14px;padding:18px 20px;
  background:var(--c-surface);border:1px solid var(--line);border-radius:var(--r-md);
  transition:all .25s var(--ease);
}
.next-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:rgba(44,111,181,.28)}
.next-card .dir{font-size:12px;color:var(--t-muted);letter-spacing:.5px}
.next-card strong{display:block;font-size:16px;color:var(--t-strong);font-weight:600;margin-top:4px}
.next-card .arrow{margin-left:auto;color:var(--c-primary);font-size:18px}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-sm);
}
.side-card h2{font-size:16px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.side-list li{display:flex;gap:10px;font-size:14px;line-height:1.75;padding:7px 0;color:var(--t-body)}
.side-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:11px;border-radius:50%;background:var(--c-primary)}
.side-links li{border-bottom:1px dashed var(--line)}
.side-links li:last-child{border-bottom:0}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:11px 0;font-size:14px;color:var(--t-body)}
.side-links a:hover{color:var(--c-primary)}
.side-links .arrow{color:var(--c-primary-line)}
.side-card.accent{border-color:rgba(200,160,90,.42);background:#FDFAF3}
.side-card.accent h2{border-color:rgba(200,160,90,.32)}
.side-card.accent p{font-size:14px;color:#6E5B3C;line-height:1.8}

/* ---------- related ---------- */
.section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-head h2{font-size:26px}
.section-head p{font-size:15px;color:var(--t-muted);margin-top:8px}
.section-head .link{font-size:14px;color:var(--c-primary);font-weight:500;white-space:nowrap}
.section-head .link:hover{color:var(--c-primary-deep)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rcard{
  background:var(--c-surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;display:flex;flex-direction:column;transition:all .3s var(--ease);
}
.rcard:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:rgba(44,111,181,.28)}
.rcard .thumb{position:relative;aspect-ratio:16/9;background:#EAF0F7;overflow:hidden}
.rcard .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.rcard:hover .thumb img{transform:scale(1.03)}
.rcard .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rcard h3{font-size:17px;line-height:1.5;font-weight:600}
.rcard p{font-size:14px;color:var(--t-muted);line-height:1.75}
.rcard .more{margin-top:auto;font-size:13px;color:var(--c-primary);font-weight:500}

/* ---------- back / cta band ---------- */
.back-band{padding-bottom:80px}
.band{
  display:flex;align-items:center;gap:32px;flex-wrap:wrap;
  background:var(--c-primary-soft);border:1px solid var(--c-primary-line);
  border-radius:var(--r-lg);padding:40px 44px;
}
.band .txt h2{font-size:23px;margin-bottom:8px}
.band .txt p{font-size:15px;color:var(--t-body)}
.band .acts{margin-left:auto;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--c-footer);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.site-footer .brand-text{color:#fff}
.site-footer .brand-mark{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.18)}
.site-footer .brand-mark span:nth-child(1),
.site-footer .brand-mark span:nth-child(3){background:#9EC6EA}
.site-footer .brand-mark span:nth-child(2){background:var(--c-accent)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:340px}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.5px}
.footer-col li{font-size:14px;line-height:2.1}
.footer-col a{color:rgba(255,255,255,.72)}
.footer-col a:hover{color:var(--c-accent)}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.9;padding:4px 0;color:rgba(255,255,255,.72)}
.footer-contact span{flex:0 0 38px;color:rgba(255,255,255,.5)}
.footer-sub{margin-top:14px;font-size:13px;color:rgba(255,255,255,.55);line-height:1.8}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a{color:rgba(255,255,255,.72)}
.footer-links a:hover{color:var(--c-accent)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:32px}
  .nav-links{gap:20px}
}
@media (max-width:1023px){
  .nav-links,.link-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .article-layout{grid-template-columns:1fr;gap:40px;padding-bottom:56px}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 280px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:56px 0}
  .article-head h1{font-size:30px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .header-inner{gap:16px;height:64px}
  .btn-cta{padding:0 16px;font-size:14px}
  .crumb-bar{padding:18px 0 2px}
  .breadcrumb .now{max-width:200px}
  .article-head h1{font-size:26px;margin:14px 0 14px}
  .article-cover{margin:20px 0 26px}
  .prose{font-size:16px;line-height:1.85}
  .prose h2{font-size:20px;margin-top:36px}
  .prose h3{font-size:17px}
  .article-body{overflow-x:auto}
  .next-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:24px}
  .band{padding:28px 22px}
  .band .acts{width:100%;margin-left:0}
  .band .acts .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-side{flex-direction:column}
  .article-side .side-card{flex:1 1 auto}
}
@media (max-width:520px){
  .btn-cta{display:none}
  .article-head h1{font-size:23px}
  .empty-state{padding:40px 18px}
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root{
  --c-primary:#2C6FB5;
  --c-primary-deep:#1B4F86;
  --c-primary-soft:#E8F1FA;
  --c-primary-line:#C6DCF2;
  --c-accent:#C8A05A;
  --c-accent-deep:#9A7440;
  --c-bg:#F7F9FC;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFF4FA;
  --c-footer:#103A5C;
  --t-strong:#0F1B2D;
  --t-body:#41506A;
  --t-muted:#7B8AA0;
  --t-invert:#FFFFFF;
  --t-disabled:#A9B5C6;
  --s-success:#1E9E6A;
  --s-warn:#D98C1F;
  --s-error:#D64545;
  --border:#E4EBF3;
  --r-ctrl:10px;
  --r-card:14px;
  --r-lg:18px;
  --r-pill:999px;
  --r-seal:6px;
  --sh-sm:0 1px 2px rgba(15,27,45,.06);
  --sh-md:0 8px 24px rgba(15,27,45,.08);
  --sh-lg:0 18px 48px rgba(15,27,45,.10);
  --font-base:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
/* ===== reset ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.8;
  color:var(--t-body);
  background:var(--c-bg);
  font-weight:400;
}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--c-primary-deep);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
::selection{background:var(--c-primary-soft);color:var(--t-strong);}

/* ===== 布局基础 ===== */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;}
.section-alt{background:var(--c-surface-alt);}
.section-head{max-width:720px;margin-bottom:48px;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  border:1px solid var(--c-primary-line);
  border-radius:var(--r-pill);
  padding:4px 14px;
  margin-bottom:16px;
}
.section-title{
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  color:var(--t-strong);
  letter-spacing:-.01em;
}
.section-desc{
  margin-top:16px;
  font-size:16px;
  line-height:1.8;
  color:var(--t-body);
}
.divider{height:1px;background:var(--border);border:0;margin:0;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 24px;
  border-radius:var(--r-ctrl);
  font-size:16px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  text-align:center;
}
.btn:active{transform:translateY(1px);}
.btn-primary{
  background:var(--c-primary);
  color:var(--t-invert);
  box-shadow:var(--sh-sm);
}
.btn-primary:hover{
  background:var(--c-primary-deep);
  color:var(--t-invert);
  box-shadow:var(--sh-md);
  transform:translateY(-1px);
}
.btn-secondary{
  background:var(--c-surface);
  color:var(--c-primary-deep);
  border-color:var(--c-primary-line);
}
.btn-secondary:hover{
  background:var(--c-primary-soft);
  border-color:var(--c-primary);
  color:var(--c-primary-deep);
  transform:translateY(-1px);
}
.btn-accent{
  background:var(--c-accent);
  color:#2A1F0C;
}
.btn-accent:hover{
  background:var(--c-accent-deep);
  color:#fff;
  transform:translateY(-1px);
}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:default;transform:none;box-shadow:none;}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  line-height:1.2;
  padding:5px 10px;
  border-radius:var(--r-seal);
  border:1px solid var(--c-accent);
  color:var(--c-accent-deep);
  background:#FFFBF3;
  letter-spacing:.02em;
}
.badge-soft{
  border-color:var(--c-primary-line);
  color:var(--c-primary-deep);
  background:var(--c-primary-soft);
}
.tag{
  display:inline-block;
  font-size:12px;
  font-weight:500;
  padding:4px 12px;
  border-radius:var(--r-pill);
  background:var(--c-surface);
  border:1px solid var(--border);
  color:var(--t-muted);
}
.seal{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:var(--r-seal);
  border:1px solid var(--c-accent);
  color:var(--c-accent-deep);
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  background:#FFFBF3;
  transform:rotate(-3deg);
}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-md);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
  transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--t-strong);
  flex:0 0 auto;
}
.brand:hover{color:var(--c-primary-deep);}
.brand-mark{
  display:inline-flex;
  align-items:flex-end;
  gap:3px;
  height:20px;
}
.brand-mark span{
  display:block;
  width:6px;
  border-radius:3px;
  background:var(--c-primary);
}
.brand-mark span:nth-child(1){height:10px;background:var(--c-primary-line);}
.brand-mark span:nth-child(2){height:20px;background:var(--c-primary);}
.brand-mark span:nth-child(3){height:14px;background:var(--c-accent);}
.brand-text{
  font-size:19px;
  font-weight:700;
  letter-spacing:.01em;
}
.main-nav{flex:1 1 auto;display:flex;justify-content:center;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  font-size:15px;
  font-weight:500;
  line-height:1.2;
  color:var(--t-body);
  border-radius:var(--r-ctrl);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--c-primary-deep);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.link-ghost{
  font-size:15px;
  font-weight:500;
  color:var(--t-muted);
  padding:8px 6px;
}
.link-ghost:hover{color:var(--c-primary);}
.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-pill);
  background:var(--c-primary);
  color:var(--t-invert);
  font-size:15px;
  font-weight:600;
  box-shadow:var(--sh-sm);
  transition:background-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.nav-cta:hover{
  background:var(--c-primary-deep);
  color:var(--t-invert);
  box-shadow:var(--sh-md);
  transform:translateY(-1px);
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-ctrl);
  border:1px solid var(--border);
  background:var(--c-surface);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--t-strong);
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ===== 移动抽屉 ===== */
.drawer-backdrop{
  position:fixed;
  inset:0;
  background:rgba(15,27,45,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:80;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;right:0;
  width:84%;
  max-width:360px;
  height:100%;
  background:var(--c-surface);
  z-index:90;
  transform:translateX(100%);
  transition:transform .28s ease;
  display:flex;
  flex-direction:column;
  box-shadow:var(--sh-lg);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 20px;
  border-bottom:1px solid var(--border);
}
.drawer-title{font-size:16px;font-weight:600;color:var(--t-strong);}
.drawer-close{
  width:44px;height:44px;
  border-radius:var(--r-ctrl);
  border:1px solid var(--border);
  font-size:18px;
  color:var(--t-body);
  display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{background:var(--c-surface-alt);color:var(--c-primary);}
.drawer-body{flex:1 1 auto;overflow-y:auto;padding:8px 20px;}
.drawer-link{
  display:block;
  padding:16px 0;
  font-size:16px;
  font-weight:500;
  color:var(--t-body);
  border-bottom:1px solid var(--border);
}
.drawer-link:hover,.drawer-link.active{color:var(--c-primary);}
.drawer-foot{padding:16px 20px 24px;border-top:1px solid var(--border);}

/* ===== Hero ===== */
.hero{
  position:relative;
  background-color:var(--c-surface);
  background-image:
    linear-gradient(100deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.88) 42%,rgba(255,255,255,.72) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--border);
}
.hero-inner{
  display:grid;
  grid-template-columns:55% 45%;
  gap:48px;
  align-items:center;
  min-height:400px;
  padding:64px 0;
}
.hero-copy .badge{margin-bottom:20px;}
.hero h1{
  font-size:44px;
  line-height:1.25;
  font-weight:700;
  color:var(--t-strong);
  letter-spacing:-.02em;
  max-width:15em;
}
.hero-sub{
  margin-top:18px;
  font-size:18px;
  line-height:1.7;
  color:var(--t-body);
  max-width:32em;
}
.hero-cta{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-metrics{
  margin-top:32px;
  display:flex;
  flex-wrap:wrap;
  gap:0 28px;
}
.metric{
  padding-right:28px;
  border-right:1px solid var(--border);
}
.metric:last-child{border-right:0;padding-right:0;}
.metric-num{
  font-family:var(--font-num);
  font-size:24px;
  font-weight:700;
  color:var(--c-primary);
  line-height:1.2;
}
.metric-label{
  margin-top:4px;
  font-size:13px;
  color:var(--t-muted);
}
.hero-media{position:relative;}
.hero-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-lg);
  border:8px solid #fff;
  box-shadow:var(--sh-md);
  background:var(--c-surface-alt);
}
.img-fallback{background:var(--c-surface-alt);}

/* ===== 实时状态条 ===== */
.status-band{
  background:var(--c-surface);
  border-bottom:1px solid var(--border);
}
.status-strip{
  display:flex;
  flex-wrap:wrap;
  gap:0 40px;
  padding:18px 0;
  align-items:center;
}
.status-item{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--t-body);
}
.status-label{color:var(--t-muted);font-size:13px;}
.status-value{font-weight:600;color:var(--t-strong);}
.status-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--s-success);
  position:relative;
  flex:0 0 auto;
}
.status-dot::after{
  content:"";
  position:absolute;
  inset:-4px;
  border-radius:50%;
  border:1px solid currentColor;
  opacity:.35;
  color:var(--s-success);
  animation:pulse 2.4s ease-out infinite;
}
.status-dot.is-warn{background:var(--s-warn);color:var(--s-warn);}
@keyframes pulse{
  0%{transform:scale(.7);opacity:.5;}
  70%{transform:scale(1.5);opacity:0;}
  100%{transform:scale(1.5);opacity:0;}
}

/* ===== 流程条 ===== */
.flow-band{position:relative;}
.flow-track{
  position:relative;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
  margin-top:8px;
}
.flow-track::before{
  content:"";
  position:absolute;
  left:0;right:0;top:26px;
  height:1px;
  background:var(--border);
}
.flow-node{position:relative;padding-right:16px;}
.flow-num{
  position:relative;
  z-index:1;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:52px;height:52px;
  border-radius:50%;
  background:var(--c-surface);
  border:1px solid var(--c-primary-line);
  color:var(--c-primary);
  font-family:var(--font-num);
  font-size:16px;
  font-weight:700;
  box-shadow:var(--sh-sm);
}
.flow-title{
  margin-top:20px;
  font-size:20px;
  font-weight:700;
  color:var(--t-strong);
  line-height:1.4;
}
.flow-desc{
  margin-top:10px;
  font-size:15px;
  line-height:1.8;
  color:var(--t-body);
}
.flow-note{
  margin-top:14px;
  font-size:13px;
  color:var(--t-muted);
  display:flex;
  align-items:center;
  gap:8px;
}
.flow-note::before{
  content:"";
  width:14px;height:1px;
  background:var(--c-accent);
  flex:0 0 auto;
}

/* ===== Z 字图文 ===== */
.zigzag{display:flex;flex-direction:column;gap:72px;}
.zz-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.zz-row.reverse .zz-media{order:2;}
.zz-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  background:var(--c-surface-alt);
}
.zz-index{
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--c-accent-deep);
  margin-bottom:14px;
}
.zz-title{
  font-size:24px;
  line-height:1.35;
  font-weight:700;
  color:var(--t-strong);
}
.zz-copy p{
  margin-top:16px;
  font-size:16px;
  line-height:1.9;
  color:var(--t-body);
}
.zz-list{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.zz-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--t-body);
}
.zz-list li::before{
  content:"";
  position:absolute;
  left:0;top:12px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--c-primary);
}

/* ===== 要点清单 ===== */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
  margin-top:8px;
}
.check-item{
  display:flex;
  gap:16px;
  padding:24px;
  background:var(--c-surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.check-item:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-md);
  border-color:var(--c-primary-line);
}
.check-mark{
  flex:0 0 auto;
  width:26px;height:26px;
  margin-top:4px;
  border-radius:50%;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:13px;
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);
}
.check-body h3{
  font-size:17px;
  font-weight:600;
  color:var(--t-strong);
  line-height:1.5;
}
.check-body p{
  margin-top:8px;
  font-size:15px;
  line-height:1.8;
  color:var(--t-body);
}

/* ===== FAQ ===== */
.faq-wrap{
  background:var(--c-surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-sm);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--border);}
.faq-q{
  width:100%;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:20px;
  padding:22px 24px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--t-strong);
  transition:background-color .2s ease,color .2s ease;
}
.faq-q:hover{background:var(--c-surface-alt);color:var(--c-primary-deep);}
.faq-icon{
  flex:0 0 auto;
  width:24px;height:24px;
  border-radius:50%;
  border:1px solid var(--c-primary-line);
  color:var(--c-primary);
  font-size:15px;
  line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:transform .2s ease,background-color .2s ease;
  margin-top:2px;
}
.faq-item.is-open .faq-icon{
  transform:rotate(45deg);
  background:var(--c-primary-soft);
}
.faq-a{
  display:none;
  padding:0 24px 24px 24px;
}
.faq-item.is-open .faq-a{display:block;}
.faq-a-inner{
  border-left:3px solid var(--c-primary);
  padding-left:16px;
  font-size:15px;
  line-height:1.8;
  color:var(--t-body);
}
.faq-a-inner strong{color:var(--t-strong);font-weight:600;}

/* ===== CTA 区 ===== */
.cta-band{
  background:var(--c-primary-soft);
  border:1px solid var(--c-primary-line);
  border-radius:var(--r-lg);
  padding:56px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
  align-items:center;
}
.cta-band h2{
  font-size:24px;
  font-weight:700;
  line-height:1.35;
  color:var(--t-strong);
}
.cta-band p{
  margin-top:12px;
  font-size:16px;
  line-height:1.8;
  color:var(--t-body);
}
.cta-form{display:flex;flex-direction:column;gap:10px;}
.form-row{display:flex;gap:12px;}
.form-input{
  flex:1 1 auto;
  height:52px;
  padding:0 16px;
  border-radius:var(--r-ctrl);
  border:1px solid var(--border);
  background:var(--c-surface);
  font-size:15px;
  color:var(--t-strong);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-input::placeholder{color:var(--t-muted);}
.form-input:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(44,111,181,.14);
}
.form-row .btn{height:52px;padding:0 26px;white-space:nowrap;}
.form-hint{font-size:13px;color:var(--t-muted);}
.form-hint.is-error{color:var(--s-error);}
.form-input.is-error{border-color:var(--s-error);}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--c-footer);
  color:var(--t-invert);
  padding:72px 0 0;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1.1fr 1.4fr;
  gap:40px;
}
.footer-brand .brand{color:#fff;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-mark span:nth-child(1){background:rgba(255,255,255,.45);}
.footer-brand .brand-mark span:nth-child(2){background:#fff;}
.footer-brand .brand-mark span:nth-child(3){background:var(--c-accent);}
.footer-brand p{
  margin-top:18px;
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.72);
  max-width:34em;
}
.footer-col h3{
  font-size:14px;
  font-weight:600;
  color:#fff;
  letter-spacing:.02em;
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{
  font-size:14px;
  color:rgba(255,255,255,.72);
}
.footer-col ul li a:hover{color:var(--c-accent);}
.footer-contact li{
  font-size:14px;
  color:rgba(255,255,255,.72);
  line-height:1.8;
  margin-bottom:10px;
}
.footer-contact li span{
  display:inline-block;
  min-width:44px;
  color:rgba(255,255,255,.5);
}
.footer-sub{
  margin-top:14px;
  font-size:13px;
  line-height:1.8;
  color:rgba(255,255,255,.6);
}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.14);
  padding:24px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-links a{
  font-size:13px;
  color:rgba(255,255,255,.72);
}
.footer-links a:hover{color:var(--c-accent);}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .hero-inner{grid-template-columns:50% 50%;gap:36px;}
  .hero h1{font-size:40px;}
  .section{padding:80px 0;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .link-ghost{display:none;}
  .nav-toggle{display:flex;}
  .main-nav{display:none;}
  .section{padding:72px 0;}
  .hero-inner{
    grid-template-columns:1fr;
    gap:36px;
    padding:48px 0;
  }
  .hero h1{font-size:34px;}
  .hero-sub{font-size:17px;}
  .hero-media img{aspect-ratio:16/9;}
  .flow-track{grid-template-columns:1fr;gap:28px;}
  .flow-track::before{display:none;}
  .flow-node{padding-right:0;}
  .zz-row{grid-template-columns:1fr;gap:28px;}
  .zz-row.reverse .zz-media{order:0;}
  .check-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .container{padding:0 16px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;height:52px;}
  .hero-metrics{flex-direction:column;gap:16px;}
  .metric{border-right:0;padding-right:0;padding-bottom:14px;border-bottom:1px solid var(--border);}
  .metric:last-child{border-bottom:0;padding-bottom:0;}
  .section-title{font-size:24px;}
  .zz-title{font-size:20px;}
  .status-strip{gap:14px;}
  .cta-band{padding:32px 20px;border-radius:var(--r-card);}
  .form-row{flex-direction:column;}
  .form-row .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{padding:20px 18px;font-size:15px;}
  .faq-a{padding:0 18px 20px 18px;}
  .site-footer{padding-top:56px;margin-top:64px;}
}
@media (max-width:520px){
  .hero h1{font-size:27px;}
  .brand-text{font-size:17px;}
  .flow-num{width:46px;height:46px;font-size:15px;}
  .check-item{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
/* ============ 设计令牌 ============ */
:root{
  --c-primary:#2C6FB5;
  --c-primary-deep:#1B4F86;
  --c-primary-soft:#E8F1FA;
  --c-primary-line:#C6DCF2;
  --c-accent:#C8A05A;
  --c-accent-deep:#9A7440;
  --c-bg:#F7F9FC;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFF4FA;
  --c-footer:#103A5C;
  --t-strong:#0F1B2D;
  --t-body:#41506A;
  --t-muted:#7B8AA0;
  --c-line:#E4EBF3;
  --c-ok:#1E9E6A;
  --c-warn:#D98C1F;
  --c-err:#D64545;
  --r-ctl:10px;
  --r-card:14px;
  --r-lg:18px;
  --sh-sm:0 1px 2px rgba(15,27,45,.06);
  --sh-md:0 8px 24px rgba(15,27,45,.08);
  --sh-lg:0 18px 48px rgba(15,27,45,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--t-body);
  background:var(--c-bg);
  font-weight:400;
}
h1,h2,h3,h4,p,ul,ol,dl,dd,dt,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 通告条 ============ */
.announce{
  background:var(--c-primary-soft);
  border-bottom:1px solid var(--c-primary-line);
  font-size:13px;
  color:var(--c-primary-deep);
  height:36px;
  display:flex;
  align-items:center;
}
.announce .container{display:flex;align-items:center;gap:10px;justify-content:center;}
.announce i{font-size:12px;}
.announce a{margin-left:auto;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.announce a:hover{color:var(--c-primary);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s var(--ease),height .25s var(--ease);
}
.site-header.is-stuck{box-shadow:var(--sh-md);}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  gap:24px;
  transition:height .25s var(--ease);
}
.site-header.is-stuck .header-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;
  border-radius:9px;
  background:linear-gradient(140deg,var(--c-primary),var(--c-primary-deep));
  display:grid;
  grid-template-columns:repeat(3,1fr);
  align-items:end;
  padding:8px 7px;
  gap:3px;
}
.brand-mark span{display:block;background:#fff;border-radius:2px;opacity:.92;}
.brand-mark span:nth-child(1){height:8px;}
.brand-mark span:nth-child(2){height:14px;}
.brand-mark span:nth-child(3){height:11px;background:var(--c-accent);}
.brand-text{
  font-size:19px;
  font-weight:700;
  color:var(--t-strong);
  letter-spacing:.5px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  font-size:15px;
  font-weight:500;
  color:var(--t-body);
  border-radius:var(--r-ctl);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:8px;
  height:2px;
  background:var(--c-primary);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.header-link{font-size:14px;color:var(--t-muted);min-height:44px;display:inline-flex;align-items:center;}
.header-link:hover{color:var(--c-primary);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  border:1px solid transparent;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-sm);}
.btn-primary:hover{background:var(--c-primary-deep);box-shadow:var(--sh-md);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:var(--c-surface);color:var(--c-primary-deep);border-color:var(--c-primary-line);}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);}
.btn-dark{background:var(--c-footer);color:#fff;}
.btn-dark:hover{background:#0B2C47;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-block{width:100%;}
.hamburger{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-ctl);
  border:1px solid var(--c-line);
  align-items:center;
  justify-content:center;
  color:var(--t-strong);
  background:var(--c-surface);
}
.hamburger i{font-size:17px;}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(15,27,45,.45);
  opacity:0;visibility:hidden;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);
  z-index:80;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:84%;
  max-width:360px;
  background:var(--c-surface);
  z-index:90;
  transform:translateX(100%);
  transition:transform .3s var(--ease);
  display:flex;
  flex-direction:column;
  box-shadow:var(--sh-lg);
}
.drawer.open{transform:translateX(0);}
.drawer-head{
  height:64px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;
  border-bottom:1px solid var(--c-line);
}
.drawer-head .brand-text{font-size:17px;}
.drawer-close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;color:var(--t-strong);}
.drawer-nav{padding:8px 0;overflow-y:auto;flex:1;}
.drawer-nav a{
  display:block;
  padding:15px 20px;
  font-size:16px;
  font-weight:500;
  color:var(--t-body);
  border-bottom:1px solid var(--c-line);
}
.drawer-nav a.active{color:var(--c-primary);background:var(--c-primary-soft);font-weight:600;}
.drawer-foot{padding:16px 20px 24px;border-top:1px solid var(--c-line);}
body.no-scroll{overflow:hidden;}

/* ============ 栏目标题区 ============ */
.page-hero{
  position:relative;
  background:var(--c-surface-alt);
  overflow:hidden;
  border-bottom:1px solid var(--c-line);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.5;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.86) 52%,rgba(255,255,255,.66) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.page-hero-inner{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:48px;
  align-items:center;
  padding:72px 0 68px;
}
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t-muted);
  margin-bottom:18px;
}
.crumbs a:hover{color:var(--c-primary);}
.crumbs i{font-size:10px;color:var(--c-primary-line);}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:6px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.3px;
  background:var(--c-surface);
  border:1px solid var(--c-accent);
  color:var(--c-accent-deep);
}
.badge-solid{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.badge-soft{background:var(--c-primary-soft);border-color:var(--c-primary-line);color:var(--c-primary-deep);}
.page-hero h1{
  font-size:42px;
  line-height:1.3;
  font-weight:700;
  color:var(--t-strong);
  letter-spacing:-.3px;
  margin-bottom:16px;
}
.page-hero .lead{
  font-size:17px;
  line-height:1.8;
  color:var(--t-body);
  max-width:620px;
  margin-bottom:26px;
}
.hero-figure{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:6px solid #fff;
  box-shadow:var(--sh-md);
  aspect-ratio:4/3;
  background:#EAF0F7;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-stat-row{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  padding-top:22px;
  border-top:1px solid var(--c-primary-line);
}
.hero-stat{display:flex;flex-direction:column;gap:2px;}
.hero-stat b{font-size:24px;font-weight:700;color:var(--c-primary);line-height:1.2;font-family:Inter,-apple-system,"PingFang SC",sans-serif;}
.hero-stat span{font-size:13px;color:var(--t-muted);}

/* ============ 通用区块 ============ */
.section{padding:96px 0;}
.section.alt{background:var(--c-surface-alt);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  color:var(--t-strong);
  margin-bottom:14px;
}
.section-head p{font-size:16px;color:var(--t-body);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--c-primary);
  letter-spacing:1px;
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px;}

/* ============ 问题卡网格 ============ */
.problem-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.problem-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-sm);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
  display:flex;
  flex-direction:column;
  gap:14px;
}
.problem-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-md);
  border-color:rgba(44,111,181,.35);
}
.problem-top{display:flex;align-items:flex-start;gap:14px;}
.problem-icon{
  width:42px;height:42px;
  flex:0 0 auto;
  border-radius:var(--r-ctl);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;
}
.problem-card h3{
  font-size:17px;
  font-weight:600;
  color:var(--t-strong);
  line-height:1.5;
}
.problem-card p{font-size:14px;color:var(--t-body);line-height:1.8;}
.problem-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--c-line);
}
.problem-foot span{font-size:12px;color:var(--t-muted);}
.arrow-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  min-height:44px;
}
.arrow-link i{transition:transform .2s var(--ease);font-size:12px;}
.arrow-link:hover i{transform:translateX(4px);}
.arrow-link:hover{color:var(--c-primary-deep);}

/* ============ 步骤化排查 ============ */
.steps{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--c-line);}
.step{
  display:grid;
  grid-template-columns:88px 1fr;
  gap:24px;
  padding:30px 0;
  border-bottom:1px solid var(--c-line);
  align-items:flex-start;
}
.step-num{
  font-size:24px;
  font-weight:700;
  color:var(--c-primary);
  line-height:1.2;
  font-family:Inter,-apple-system,"PingFang SC",sans-serif;
  display:flex;
  align-items:center;
  gap:10px;
}
.step-num::after{content:"";flex:1;height:1px;background:var(--c-primary-line);}
.step-body h3{font-size:18px;font-weight:600;color:var(--t-strong);margin-bottom:8px;}
.step-body p{font-size:15px;color:var(--t-body);margin-bottom:10px;}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 10px;
  border-radius:999px;
  font-size:12px;
  background:var(--c-surface-alt);
  color:var(--c-primary-deep);
  border:1px solid var(--c-line);
}
.tag.warn{background:#FDF4E6;color:#8A5A12;border-color:#F0DDB8;}
.tag.ok{background:#E9F7F1;color:#137A51;border-color:#C3E7D7;}

/* ============ 对照面板 ============ */
.compare-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:30px;
  box-shadow:var(--sh-sm);
}
.panel-head{
  display:flex;align-items:center;gap:10px;
  padding-bottom:16px;
  margin-bottom:8px;
  border-bottom:1px solid var(--c-line);
}
.panel-head i{color:var(--c-accent-deep);font-size:15px;}
.panel-head h3{font-size:17px;font-weight:600;color:var(--t-strong);}
.dl-list dt{
  font-size:15px;
  font-weight:600;
  color:var(--t-strong);
  padding-top:16px;
  display:flex;align-items:center;gap:8px;
}
.dl-list dt::before{
  content:"";width:6px;height:6px;border-radius:2px;
  background:var(--c-primary);flex:0 0 auto;
}
.dl-list dd{
  font-size:14px;
  color:var(--t-body);
  padding:6px 0 0 14px;
  border-left:2px solid var(--c-surface-alt);
  margin-top:6px;
  margin-left:2px;
}
.dl-list > div + div{border-top:1px solid var(--c-line);}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item.open{border-color:var(--c-primary-line);box-shadow:var(--sh-sm);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--t-strong);
  line-height:1.6;
}
.faq-q i{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:50%;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.faq-item.open .faq-q i{transform:rotate(180deg);background:var(--c-primary);color:#fff;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{
  padding:0 24px 22px 24px;
  margin-left:0;
  border-left:3px solid var(--c-primary);
  margin-left:24px;
  padding-left:18px;
  font-size:15px;
  line-height:1.8;
  color:var(--t-body);
}

/* ============ 返回与 CTA ============ */
.back-row{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
  justify-content:center;
  padding:56px 0 0;
}
.cta-band{background:var(--c-footer);color:#fff;position:relative;overflow:hidden;}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  opacity:.16;
}
.cta-inner{
  position:relative;z-index:2;
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:40px;
  align-items:center;
  padding:64px 0;
}
.cta-inner h2{font-size:26px;font-weight:700;color:#fff;line-height:1.4;margin-bottom:12px;}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.78);line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-actions .btn-primary{background:var(--c-primary);}
.cta-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.38);}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.cta-metrics{
  display:flex;gap:28px;flex-wrap:wrap;
  margin-top:22px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.16);
}
.cta-metrics div b{display:block;font-size:22px;font-weight:700;color:#fff;font-family:Inter,-apple-system,sans-serif;}
.cta-metrics div span{font-size:12px;color:rgba(255,255,255,.66);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-footer);color:#fff;padding:72px 0 0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.72);line-height:1.9;}
.footer-col h3{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.4px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  display:inline-flex;
  align-items:center;
  min-height:26px;
}
.footer-col ul a:hover{color:var(--c-accent);}
.footer-contact li{
  font-size:14px;
  color:rgba(255,255,255,.72);
  margin-bottom:10px;
  display:flex;
  gap:10px;
}
.footer-contact li span{
  flex:0 0 auto;
  color:#fff;
  font-weight:500;
  min-width:38px;
}
.footer-sub{
  font-size:13px;
  color:rgba(255,255,255,.6);
  margin-top:14px;
  line-height:1.8;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.62);
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:13px;}
.footer-links a:hover{color:var(--c-accent);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .page-hero h1{font-size:38px;}
  .container{padding:0 24px;}
}
@media (max-width:1023px){
  .nav-links,.header-link{display:none;}
  .hamburger{display:flex;}
  .header-inner{height:64px;}
  .page-hero-inner{grid-template-columns:1fr;gap:32px;padding:56px 0;}
  .page-hero h1{font-size:34px;}
  .section{padding:72px 0;}
  .problem-grid{grid-template-columns:1fr;}
  .compare-grid{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;gap:28px;padding:56px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .page-hero h1{font-size:30px;}
  .page-hero .lead{font-size:16px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:24px;}
  .step{grid-template-columns:1fr;gap:12px;padding:24px 0;}
  .step-num::after{display:none;}
  .hero-stat-row{gap:20px;}
  .btn-block-mobile{width:100%;}
  .cta-actions .btn{width:100%;}
  .back-row .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .panel{padding:22px;}
  .problem-card{padding:22px;}
  .faq-q{padding:18px 18px;font-size:15px;}
  .faq-a-inner{margin-left:18px;padding-left:14px;padding-right:18px;}
}
@media (max-width:520px){
  .brand-text{font-size:17px;}
  .page-hero h1{font-size:26px;}
  .badge-row{gap:8px;}
  .badge{font-size:11px;padding:0 10px;}
  .hero-figure{aspect-ratio:16/9;}
}

/* roulang page: category3 */
:root{
  --c-primary:#2C6FB5;
  --c-primary-deep:#1B4F86;
  --c-primary-soft:#E8F1FA;
  --c-primary-line:#C6DCF2;
  --c-accent:#C8A05A;
  --c-accent-deep:#9A7440;
  --c-bg:#F7F9FC;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFF4FA;
  --c-footer:#103A5C;
  --t-strong:#0F1B2D;
  --t-body:#41506A;
  --t-muted:#7B8AA0;
  --t-disabled:#A9B5C6;
  --c-border:#E4EBF3;
  --c-success:#1E9E6A;
  --c-warning:#D98C1F;
  --c-error:#D64545;
  --r-sm:6px;
  --r-ctl:10px;
  --r-card:14px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(15,27,45,.06);
  --sh-md:0 8px 24px rgba(15,27,45,.08);
  --sh-lg:0 18px 48px rgba(15,27,45,.10);
  --sp:4px;
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--t-body);
  background:var(--c-bg);
  font-weight:400;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-deep);}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--t-strong);font-weight:700;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 26px;border-radius:var(--r-ctl);
  font-size:16px;font-weight:600;line-height:1.2;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-sm);}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;box-shadow:var(--sh-md);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--c-primary-deep);border-color:var(--c-primary-line);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-deep);box-shadow:var(--sh-sm);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--c-primary-deep);}
.btn-light:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-sm);
  font-size:12px;font-weight:600;line-height:1.6;
  background:#fff;color:var(--c-accent-deep);
  border:1px solid var(--c-accent);
  letter-spacing:.02em;
}
.badge-blue{background:var(--c-primary-soft);color:var(--c-primary-deep);border-color:var(--c-primary-line);}
.badge-plain{background:var(--c-surface-alt);color:var(--t-muted);border-color:var(--c-border);}
.pill{display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);font-size:13px;font-weight:500;background:var(--c-primary-soft);color:var(--c-primary-deep);}
.section{padding:96px 0;}
.section-alt{background:var(--c-surface-alt);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{font-size:30px;margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--t-muted);}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:#fff;border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease,height .25s ease;
}
.site-header.scrolled{box-shadow:var(--sh-md);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;transition:height .25s ease;}
.site-header.scrolled .nav-wrap{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t-strong);font-weight:700;font-size:19px;}
.brand:hover{color:var(--c-primary-deep);}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;width:30px;height:30px;padding:5px;border-radius:9px;background:var(--c-primary-soft);border:1px solid var(--c-primary-line);}
.brand-mark span{display:block;width:4px;border-radius:2px;background:var(--c-primary);}
.brand-mark span:nth-child(1){height:9px;}
.brand-mark span:nth-child(2){height:15px;background:var(--c-primary-deep);}
.brand-mark span:nth-child(3){height:11px;background:var(--c-accent);}
.brand-text{letter-spacing:.01em;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--t-body);
  padding:6px 0;line-height:1.2;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--c-primary-deep);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:18px;}
.nav-quiet{font-size:15px;font-weight:500;color:var(--t-muted);}
.nav-quiet:hover{color:var(--c-primary);}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;
  border-radius:var(--r-pill);background:var(--c-primary);color:#fff;
  font-size:15px;font-weight:600;line-height:1.2;box-shadow:var(--sh-sm);
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.nav-cta:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md);}
.hamburger{
  display:none;width:44px;height:44px;border-radius:var(--r-ctl);
  align-items:center;justify-content:center;border:1px solid var(--c-border);background:#fff;
}
.hamburger span{display:block;width:20px;height:2px;background:var(--t-strong);border-radius:2px;position:relative;transition:background .2s ease;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--t-strong);border-radius:2px;transition:transform .25s ease,top .25s ease;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.hamburger.open span{background:transparent;}
.hamburger.open span::before{top:0;transform:rotate(45deg);}
.hamburger.open span::after{top:0;transform:rotate(-45deg);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,27,45,.45);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:98;
}
.drawer-mask.show{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84%;max-width:360px;background:#fff;
  transform:translateX(100%);transition:transform .28s ease;z-index:99;
  display:flex;flex-direction:column;box-shadow:var(--sh-lg);
}
.drawer.show{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--c-border);}
.drawer-close{width:44px;height:44px;border-radius:var(--r-ctl);border:1px solid var(--c-border);display:flex;align-items:center;justify-content:center;color:var(--t-strong);font-size:18px;}
.drawer-links{padding:8px 20px;overflow-y:auto;flex:1;}
.drawer-links a{display:block;font-size:16px;font-weight:500;color:var(--t-body);padding:15px 0;border-bottom:1px solid var(--c-border);}
.drawer-links a.active{color:var(--c-primary-deep);font-weight:600;}
.drawer-foot{padding:16px 20px 26px;border-top:1px solid var(--c-border);}
.drawer-foot .btn{width:100%;}
body.no-scroll{overflow:hidden;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  min-height:400px;display:flex;align-items:center;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(16,58,92,.92) 0%,rgba(27,79,134,.82) 48%,rgba(44,111,181,.62) 100%);
}
.cat-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:64px;}
.hero-inner{max-width:720px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.4);
  color:#fff;font-size:13px;font-weight:500;margin-bottom:20px;
}
.hero-badge i{color:var(--c-accent);}
.cat-hero h1{color:#fff;font-size:44px;font-weight:700;line-height:1.25;margin-bottom:18px;}
.cat-hero h1 em{font-style:normal;color:#F2D9A8;}
.hero-sub{color:rgba(255,255,255,.9);font-size:18px;line-height:1.75;max-width:640px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:36px;padding-top:24px;border-top:1px solid rgba(255,255,255,.22);}
.hero-fact strong{display:block;font-size:24px;font-weight:700;color:#fff;line-height:1.2;}
.hero-fact span{font-size:13px;color:rgba(255,255,255,.75);}
.crumbs{font-size:13px;color:var(--t-muted);padding:20px 0 0;}
.crumbs a{color:var(--t-muted);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs span.sep{margin:0 8px;color:var(--t-disabled);}

/* ---------- 三段编号 ---------- */
.steps-wrap{position:relative;}
.steps-line{position:absolute;left:0;right:0;top:26px;height:1px;background:var(--c-primary-line);}
.steps{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);padding:30px 26px 28px;box-shadow:var(--sh-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:rgba(44,111,181,.2);}
.step-num{
  display:flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:var(--r-ctl);
  background:var(--c-primary-soft);border:1px solid var(--c-primary-line);
  color:var(--c-primary-deep);font-size:20px;font-weight:700;letter-spacing:.02em;margin-bottom:20px;
}
.step h3{font-size:20px;margin-bottom:10px;}
.step p{font-size:15px;color:var(--t-body);margin-bottom:14px;}
.step ul li{position:relative;padding-left:16px;font-size:14px;color:var(--t-muted);line-height:1.8;}
.step ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-accent);}

/* ---------- 内容卡 2×3 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.tip-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:16px;overflow:hidden;
  box-shadow:var(--sh-sm);display:flex;flex-direction:column;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.tip-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:rgba(44,111,181,.2);}
.tip-media{position:relative;width:100%;aspect-ratio:4/3;background:#EAF0F7;overflow:hidden;}
.tip-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.tip-card:hover .tip-media img{transform:scale(1.03);}
.tip-media .fallback{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--t-disabled);font-size:26px;}
.tip-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tip-body h3{font-size:17px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:49px;}
.tip-body p{font-size:14px;color:var(--t-muted);line-height:1.75;}
.tip-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:14px;border-top:1px solid var(--c-border);}
.tip-meta span{font-size:13px;color:var(--t-muted);}
.tip-meta a{font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.tip-meta a i{transition:transform .2s ease;}
.tip-meta a:hover i{transform:translateX(3px);}

/* ---------- FAQ ---------- */
.faq-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);}
.faq-item{border-bottom:1px solid var(--c-border);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px;text-align:left;font-size:16px;font-weight:600;color:var(--t-strong);line-height:1.5;
  transition:background-color .2s ease;
}
.faq-q:hover{background:var(--c-surface-alt);}
.faq-icon{flex:0 0 auto;width:28px;height:28px;border-radius:8px;background:var(--c-primary-soft);color:var(--c-primary-deep);display:flex;align-items:center;justify-content:center;font-size:14px;transition:transform .2s ease;}
.faq-item.open .faq-icon{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 26px 24px 29px;border-left:3px solid var(--c-primary);margin-left:26px;padding-left:18px;font-size:15px;line-height:1.85;color:var(--t-body);}
.faq-item.open .faq-a{max-height:520px;}

/* ---------- 深色 CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--c-footer) 0%,var(--c-primary-deep) 100%);
  border-radius:var(--r-lg);padding:56px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:var(--sh-lg);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:rgba(200,160,90,.14);pointer-events:none;
}
.cta-band h2{color:#fff;font-size:24px;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:16px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-footer);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.25);}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);}
.footer-col h3{color:#fff;font-size:14px;font-weight:600;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col ul li a:hover{color:var(--c-accent);}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.72);margin-bottom:11px;line-height:1.7;}
.footer-contact li span{display:inline-block;min-width:44px;color:rgba(255,255,255,.5);}
.footer-sub{font-size:13px;color:rgba(255,255,255,.55);margin-top:14px;line-height:1.7;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);
}
.footer-links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-links a{font-size:13px;color:rgba(255,255,255,.6);}
.footer-links a:hover{color:var(--c-accent);}

/* ---------- Responsive ---------- */
@media (min-width:1024px) and (max-width:1279px){
  .nav-links{gap:20px;}
  .cta-band{padding:48px;}
}
@media (max-width:1023px){
  .nav-links,.nav-right .nav-quiet{display:none;}
  .hamburger{display:flex;}
  .section{padding:72px 0;}
  .steps{grid-template-columns:1fr;}
  .steps-line{display:none;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .cat-hero h1{font-size:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .site-footer{padding-top:56px;margin-top:56px;}
  .cat-hero{min-height:340px;}
  .cat-hero .container{padding-top:48px;padding-bottom:48px;}
  .cat-hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-facts{gap:22px;}
  .card-grid{grid-template-columns:1fr;}
  .tip-media{aspect-ratio:16/9;}
  .section-head h2{font-size:24px;}
  .faq-q{padding:18px 18px;font-size:15px;}
  .faq-a-inner{margin-left:18px;padding:0 18px 20px 14px;}
  .cta-band{padding:32px 22px;border-radius:var(--r-card);}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .cat-hero h1{font-size:26px;}
  .brand{font-size:17px;}
  .step{padding:24px 20px;}
}