/* roulang page: index */
:root{
--brand-700:#0F47A6;
--brand-600:#1657C8;
--brand-500:#2A74E8;
--brand-50:#EEF4FF;
--accent:#FF7A2F;
--accent-700:#E8621A;
--teal:#12B2A6;
--ink-900:#0B1B2B;
--ink-700:#1E3350;
--ink-500:#5A6B82;
--ink-300:#9AA9BC;
--line:#E4EAF2;
--bg:#F4F7FB;
--surface:#FFFFFF;
--surface-alt:#F7FAFF;
--radius-card:18px;
--radius-img:20px;
--radius-pill:999px;
--radius-input:12px;
--radius-banner:24px;
--shadow-card:0 1px 2px rgba(11,27,43,.04), 0 10px 30px -14px rgba(11,27,43,.16);
--shadow-hover:0 18px 40px -18px rgba(11,27,43,.22);
--shadow-nav:0 8px 28px -12px rgba(11,27,43,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px;-webkit-text-size-adjust:100%}
body{
margin:0;
font-family:system-ui,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
font-size:16px;line-height:1.8;color:var(--ink-700);background:var(--bg);
-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
strong{font-weight:700}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}
@media (min-width:1024px){.container{padding-left:40px;padding-right:40px}}
/* ===== 悬浮胶囊导航 ===== */
.site-header{position:sticky;top:0;z-index:60;padding-top:12px}
.nav-shell{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
.nav-pill{
display:flex;align-items:center;gap:18px;min-height:62px;
background:rgba(255,255,255,.88);
-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
border:1px solid var(--line);border-radius:var(--radius-pill);
box-shadow:var(--shadow-nav);padding:9px 12px 9px 18px;
transition:box-shadow .3s ease,background-color .3s ease;
}
.nav-pill.is-scrolled{box-shadow:0 14px 34px -14px rgba(11,27,43,.28);background:rgba(255,255,255,.96)}
.site-logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;min-height:44px}
.logo-mark{
width:36px;height:36px;border-radius:12px;flex:0 0 auto;
background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
color:#fff;display:grid;place-items:center;font-size:17px;font-weight:800;letter-spacing:-.02em;
}
.logo-text{font-size:15px;font-weight:800;color:var(--ink-900);white-space:nowrap;letter-spacing:-.01em}
.logo-text i{font-style:normal;color:var(--brand-600)}
.nav-menu{display:none;align-items:center;gap:4px;flex:1 1 auto;justify-content:center}
@media (min-width:1024px){.nav-menu{display:flex}}
.nav-link{
display:inline-flex;align-items:center;gap:7px;min-height:44px;padding:0 16px;
border-radius:var(--radius-pill);font-size:15px;font-weight:500;color:var(--ink-500);
transition:color .2s ease,background-color .2s ease;
white-space:nowrap;
}
.nav-link:hover{color:var(--brand-600);background:var(--brand-50)}
.nav-link.active{color:var(--ink-900);background:var(--brand-50);font-weight:600}
.nav-link.active::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--brand-600)}
.nav-cta{display:none;flex:0 0 auto}
@media (min-width:1024px){.nav-cta{display:inline-flex}}
.nav-toggle{
display:inline-flex;align-items:center;justify-content:center;
width:44px;height:44px;border-radius:var(--radius-pill);
border:1px solid var(--line);background:#fff;margin-left:auto;flex:0 0 auto;
transition:border-color .2s ease,background-color .2s ease;
}
.nav-toggle:hover{border-color:var(--brand-500);background:var(--brand-50)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-700);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-700);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
@media (min-width:1024px){.nav-toggle{display:none}}
.mobile-panel{
display:none;margin:10px auto 0;max-width:1160px;
background:rgba(255,255,255,.98);border:1px solid var(--line);
border-radius:22px;box-shadow:var(--shadow-nav);padding:10px;
-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.mobile-panel.open{display:block}
.mobile-panel a{display:flex;align-items:center;min-height:56px;padding:0 18px;border-radius:14px;font-size:16px;font-weight:500;color:var(--ink-700);transition:background-color .2s ease,color .2s ease}
.mobile-panel a:hover{background:var(--brand-50);color:var(--brand-700)}
.mobile-panel a.active{background:var(--brand-50);color:var(--brand-700);font-weight:600}
.mobile-panel .mobile-cta{margin:8px 10px 6px}
@media (min-width:1024px){.mobile-panel{display:none !important}}
/* ===== 按钮 ===== */
.btn{
display:inline-flex;align-items:center;justify-content:center;gap:8px;
min-height:44px;padding:12px 24px;border-radius:var(--radius-pill);
font-size:15px;font-weight:600;line-height:1.2;white-space:nowrap;
transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 10px 24px -12px rgba(22,87,200,.75)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:0 16px 32px -14px rgba(22,87,200,.85)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px -12px rgba(22,87,200,.7)}
.btn-ghost{background:#fff;color:var(--ink-700);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--brand-50);border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 12px 26px -12px rgba(255,122,47,.85)}
.btn-accent:hover{background:var(--accent-700);transform:translateY(-1px);box-shadow:0 18px 34px -14px rgba(255,122,47,.9)}
.btn-accent:active{transform:translateY(0)}
.btn-light-outline{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55)}
.btn-light-outline:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-1px)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}
/* ===== 通用板块 ===== */
.section{padding:60px 0}
@media (min-width:768px){.section{padding:76px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section-alt{background:var(--surface-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px}
.section-head-row{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between;max-width:none}
.eyebrow{
display:inline-flex;align-items:center;gap:8px;
font-size:12px;font-weight:600;letter-spacing:.06em;
color:var(--brand-700);background:var(--brand-50);
border:1px solid rgba(42,116,232,.18);
padding:6px 14px;border-radius:var(--radius-pill);margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500)}
.section-title{font-size:clamp(22px,2.6vw,32px);line-height:1.3;margin-bottom:14px}
.section-desc{font-size:16px;color:var(--ink-500);line-height:1.8}
.tag{
display:inline-flex;align-items:center;gap:6px;
font-size:12px;font-weight:600;color:var(--brand-700);
background:var(--brand-50);border-radius:var(--radius-pill);padding:5px 12px;
}
.tag-teal{color:#0B7C74;background:#E4F8F7}
.tag-accent{color:#B34A0D;background:#FFF0E6}
.badge{
display:inline-flex;align-items:center;font-size:12px;font-weight:600;
color:var(--brand-700);background:var(--brand-50);
border-radius:var(--radius-pill);padding:5px 12px;
}
/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding-top:36px;padding-bottom:64px;background:linear-gradient(180deg,#F4F7FB 0%,#FFFFFF 82%)}
.hero::after{
content:"";position:absolute;inset:0;pointer-events:none;
background-image:url('/assets/images/backpic/back-2.png');
background-size:cover;background-position:center;
opacity:.06;
}
.hero-grid{position:relative;z-index:1;display:grid;gap:44px}
@media (min-width:1024px){.hero-grid{grid-template-columns:minmax(0,1.02fr) minmax(0,1fr);gap:56px;align-items:center}}
.hero-title{
font-size:clamp(30px,4.6vw,50px);line-height:1.2;font-weight:700;letter-spacing:-.02em;
margin-bottom:18px;
}
.hero-title em{font-style:normal;color:var(--brand-600);display:inline-block}
.hero-sub{font-size:17px;line-height:1.8;color:var(--ink-500);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-note{margin-top:18px;font-size:13px;color:var(--ink-500)}
.hero-visual{position:relative}
.hero-img{
width:100%;aspect-ratio:4/3;object-fit:cover;
border-radius:var(--radius-img);border:1px solid var(--line);
box-shadow:0 30px 70px -34px rgba(11,27,43,.42);
}
.hero-thumb{
position:absolute;right:-14px;bottom:-22px;width:156px;
border-radius:16px;border:5px solid #fff;
box-shadow:0 20px 44px -20px rgba(11,27,43,.35);display:none;
}
@media (min-width:768px){.hero-thumb{display:block}}
.hero-float{
position:absolute;left:-10px;bottom:26px;width:min(258px,82%);
background:#fff;border:1px solid var(--line);border-radius:16px;
box-shadow:var(--shadow-hover);padding:16px 18px;
}
.hero-float-title{display:block;font-size:12px;font-weight:600;color:var(--ink-500);letter-spacing:.04em;margin-bottom:8px}
.hero-float-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-500);padding:5px 0}
.hero-float-row strong{font-size:13px;color:var(--teal);font-weight:700}
.hero-points{
position:relative;z-index:1;margin-top:46px;
display:grid;gap:14px;padding:20px 24px;
background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
box-shadow:var(--shadow-card);
}
@media (min-width:768px){.hero-points{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}}
.hero-point{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-700)}
.hero-point span.dot{flex:0 0 auto;width:8px;height:8px;border-radius:50%;background:var(--brand-500);margin-top:9px}
@media (max-width:767px){
.hero-float{position:static;width:100%;margin-top:18px}
}
/* ===== 时间线 ===== */
.timeline{position:relative;display:grid;gap:22px;margin-top:42px;padding-left:28px}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:2px;background:var(--line)}
.timeline-item{position:relative}
.timeline-dot{
position:absolute;left:-28px;top:16px;width:12px;height:12px;border-radius:50%;
background:var(--brand-500);box-shadow:0 0 0 4px rgba(42,116,232,.14);
}
.timeline-item.is-key .timeline-dot{background:var(--accent);box-shadow:0 0 0 4px rgba(255,122,47,.18)}
.timeline-card{
background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
padding:20px;box-shadow:var(--shadow-card);
transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
height:100%;
}
.timeline-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D8E5FB}
.timeline-step{display:block;font-size:12px;font-weight:700;color:var(--brand-600);letter-spacing:.06em;margin-bottom:6px}
.timeline-title{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:8px}
.timeline-text{font-size:14px;color:var(--ink-500);line-height:1.8;margin-bottom:12px}
@media (min-width:1024px){
.timeline{grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;padding-left:0;padding-top:36px}
.timeline::before{left:5%;right:5%;top:11px;bottom:auto;width:auto;height:2px}
.timeline-item{padding-top:0}
.timeline-dot{left:0;top:-30px}
}
/* ===== 亮点错落网格 ===== */
.feature-grid{display:grid;gap:24px;margin-top:42px}
@media (min-width:1024px){
.feature-grid{grid-template-columns:1.22fr 1fr;grid-template-rows:auto auto}
.feature-lg{grid-row:span 2}
}
.feature-card{
background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
box-shadow:var(--shadow-card);overflow:hidden;
transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D8E5FB}
.feature-media{overflow:hidden}
.feature-media img{width:100%;object-fit:cover;transition:transform .45s ease}
.feature-lg .feature-media img{aspect-ratio:16/10;height:100%}
.feature-card:hover .feature-media img{transform:scale(1.02)}
.feature-body{padding:22px 24px;display:flex;flex-direction:column;gap:10px}
.feature-lg .feature-body{padding:26px 28px}
.feature-title{font-size:19px;font-weight:600;line-height:1.45}
.feature-lg .feature-title{font-size:22px}
.feature-text{font-size:14px;color:var(--ink-500);line-height:1.8}
.feature-sm{flex-direction:row;align-items:stretch}
.feature-sm .feature-media{flex:0 0 108px;width:108px}
.feature-sm .feature-media img{width:100%;height:100%;min-height:112px}
.feature-sm .feature-body{padding:18px 20px}
@media (max-width:519px){
.feature-sm{flex-direction:column}
.feature-sm .feature-media{flex:none;width:100%}
.feature-sm .feature-media img{aspect-ratio:16/9;min-height:0}
}
/* ===== 方式对比 ===== */
.plan-grid{display:grid;gap:24px;margin-top:44px}
@media (min-width:1024px){.plan-grid{grid-template-columns:repeat(3,minmax(0,1fr));align-items:start}}
.plan-card{
position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
padding:28px 24px 26px;box-shadow:var(--shadow-card);
display:flex;flex-direction:column;gap:16px;
transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D8E5FB}
.plan-featured{border-color:var(--brand-500);box-shadow:0 20px 46px -22px rgba(22,87,200,.42);order:-1}
.plan-flag{
position:absolute;top:-12px;right:20px;
background:var(--accent);color:#fff;font-size:12px;font-weight:600;
padding:4px 12px;border-radius:var(--radius-pill);
box-shadow:0 8px 18px -10px rgba(255,122,47,.9);
}
.plan-name{font-size:19px;font-weight:600}
.plan-note{font-size:13px;color:var(--ink-500);line-height:1.7}
.plan-metric{display:flex;align-items:baseline;gap:8px;padding:10px 0 4px;border-bottom:1px solid var(--line)}
.plan-metric strong{font-size:36px;font-weight:700;color:var(--ink-900);letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1}
.plan-metric span{font-size:13px;color:var(--ink-500)}
.plan-list{display:grid;gap:11px;flex:1 1 auto}
.plan-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-700);line-height:1.7}
.plan-list .yes{flex:0 0 auto;width:18px;height:18px;border-radius:50%;background:#E4F8F7;color:#0B7C74;font-size:11px;font-weight:700;display:grid;place-items:center;margin-top:4px}
.plan-list .no{flex:0 0 auto;width:18px;height:18px;border-radius:50%;background:#F1F4F9;color:var(--ink-300);font-size:11px;font-weight:700;display:grid;place-items:center;margin-top:4px}
.plan-card .btn{width:100%}
@media (min-width:1024px){
.plan-featured{order:0;transform:translateY(-12px)}
.plan-featured:hover{transform:translateY(-16px)}
}
/* ===== 最新信息（CMS） ===== */
.news-grid{display:grid;gap:24px;margin-top:42px}
@media (min-width:1024px){.news-grid{grid-template-columns:1.28fr 1fr;gap:28px;align-items:start}}
.news-lead{
background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
overflow:hidden;box-shadow:var(--shadow-card);
transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-lead:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D8E5FB}
.news-lead-media{
aspect-ratio:16/9;
background-image:url('/assets/images/coverpic/cover-3.webp');
background-size:cover;background-position:center;
}
.news-lead-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px}
.news-lead-title{font-size:21px;font-weight:600;line-height:1.45;
display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-lead-text{font-size:14px;color:var(--ink-500);line-height:1.8;
display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);font-variant-numeric:tabular-nums}
.news-meta::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ink-300)}
.news-list{display:grid;gap:12px}
.news-row{
background:#fff;border:1px solid var(--line);border-radius:16px;
padding:16px 18px;box-shadow:var(--shadow-card);
transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D8E5FB}
.news-row .row-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.news-row h3{font-size:16px;font-weight:600;line-height:1.5;
display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-row .news-meta{margin-top:8px}
.news-empty{
margin-top:40px;padding:44px 24px;text-align:center;
background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);
color:var(--ink-500);font-size:15px;
}
.news-empty svg{width:34px;height:34px;margin:0 auto 12px;color:var(--ink-300);display:block}
/* ===== 数据带 ===== */
.stats-band{
display:grid;gap:20px;padding:32px 28px;
background:#fff;border:1px solid var(--line);border-radius:var(--radius-banner);
box-shadow:var(--shadow-card);
}
@media (min-width:640px){.stats-band{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.stats-band{grid-template-columns:repeat(4,minmax(0,1fr));padding:40px 36px}}
.stat{padding:6px 0;border-left:0}
@media (min-width:1024px){
.stat{border-left:1px solid var(--line);padding-left:26px}
.stat:first-child{border-left:0;padding-left:0}
}
.stat strong{display:block;font-size:34px;font-weight:700;color:var(--ink-900);letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.2}
.stat span{display:block;margin-top:6px;font-size:14px;color:var(--ink-500)}
/* ===== FAQ ===== */
.faq-list{max-width:880px;margin:40px auto 0;display:grid;gap:12px}
.faq-item{
background:#fff;border:1px solid var(--line);border-radius:14px;
transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(42,116,232,.36);box-shadow:var(--shadow-card)}
.faq-q{
display:flex;align-items:center;justify-content:space-between;gap:16px;
padding:18px 22px;font-size:17px;font-weight:600;color:var(--ink-900);
cursor:pointer;list-style:none;min-height:44px;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q::marker{content:""}
.faq-icon{flex:0 0 auto;position:relative;width:22px;height:22px;transition:transform .3s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-600);border-radius:2px}
.faq-icon::before{left:10px;top:2px;width:2px;height:18px}
.faq-icon::after{top:10px;left:2px;height:2px;width:18px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-a{padding:0 22px 20px;font-size:15px;color:var(--ink-500);line-height:1.8;max-width:760px}
/* ===== CTA 横幅 ===== */
.cta-banner{
position:relative;overflow:hidden;
background:var(--brand-700);border-radius:var(--radius-banner);
padding:48px 32px;display:flex;flex-wrap:wrap;gap:26px;
align-items:center;justify-content:space-between;
box-shadow:0 30px 60px -30px rgba(15,71,166,.6);
}
.cta-banner::after{
content:"";position:absolute;inset:0;pointer-events:none;opacity:.08;
background-image:radial-gradient(circle at 1px 1px, #ffffff 1px, transparent 0);
background-size:18px 18px;
}
.cta-copy{position:relative;z-index:1;max-width:620px}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-copy p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.8}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:14px}
@media (min-width:1024px){.cta-banner{padding:56px 52px}}
/* ===== 页脚 ===== */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);margin-top:0;padding-top:64px}
.footer-grid{display:grid;gap:34px;padding-bottom:44px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand .footer-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:-.01em}
.footer-brand .footer-logo i{font-style:normal;color:#7FB0FF}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.03em}
.footer-col ul{display:grid;gap:11px}
.footer-col li{font-size:14px;color:rgba(255,255,255,.62);line-height:1.7}
.footer-col a{position:relative;display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:#fff;transform:translateX(2px);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
border-top:1px solid rgba(255,255,255,.12);
padding:22px 0 30px;display:flex;flex-wrap:wrap;gap:12px;
align-items:center;justify-content:space-between;
font-size:13px;color:rgba(255,255,255,.5);
}
/* ===== 动效降级 ===== */
@media (prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
*,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
}
/* roulang page: category1 */
:root{
--brand-700:#0F47A6;
--brand-600:#1657C8;
--brand-500:#2A74E8;
--brand-50:#EEF4FF;
--accent:#FF7A2F;
--accent-dark:#E8621A;
--teal:#12B2A6;
--ink-900:#0B1B2B;
--ink-700:#1E3350;
--ink-500:#5A6B82;
--ink-300:#9AA9BC;
--line:#E4EAF2;
--bg:#F4F7FB;
--card:#FFFFFF;
--radius-card:18px;
--radius-img:20px;
--radius-pill:999px;
--shadow-card:0 1px 2px rgba(11,27,43,.04), 0 10px 30px -14px rgba(11,27,43,.16);
--shadow-hover:0 18px 40px -18px rgba(11,27,43,.22);
--shadow-nav:0 8px 28px -12px rgba(11,27,43,.18);
--sp-section:96px;
}
@media (max-width:768px){ :root{ --sp-section:60px; } }
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
html body{
margin:0;
background:var(--bg);
color:var(--ink-700);
font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
font-size:16px;
line-height:1.8;
-webkit-font-smoothing:antialiased;
}
html img{ max-width:100%; display:block; }
html a{ color:inherit; text-decoration:none; }
html ul{ list-style:none; margin:0; padding:0; }
html h1,html h2,html h3,html h4{ margin:0; color:var(--ink-900); letter-spacing:-.01em; }
html p{ margin:0; }
html button{ font-family:inherit; }
html table{ border-collapse:collapse; }
:focus-visible{ outline:2px solid var(--brand-500); outline-offset:2px; border-radius:6px; }
.container{ width:100%; max-width:1200px; margin:0 auto; padding:0 20px; }
@media (min-width:768px){ .container{ padding:0 32px; } }
@media (min-width:1024px){ .container{ padding:0 40px; } }
.section{ padding:var(--sp-section) 0; }
.section-alt{ background:#FFFFFF; }
.section-head{ max-width:760px; margin:0 0 40px; }
.section-head h2{ font-size:clamp(22px,2.6vw,32px); line-height:1.3; font-weight:700; margin-bottom:14px; }
.section-head p{ font-size:16px; color:var(--ink-500); }
/* ---------- header / nav ---------- */
.site-header{ position:sticky; top:12px; z-index:60; padding:0 16px; }
.nav-shell{ position:relative; max-width:1160px; margin:0 auto; }
.nav-pill{
display:flex; align-items:center; gap:20px;
background:rgba(255,255,255,.88);
-webkit-backdrop-filter:blur(10px); backdrop-filter:blur(10px);
border:1px solid var(--line); border-radius:var(--radius-pill);
padding:10px 12px 10px 16px; box-shadow:var(--shadow-nav);
transition:box-shadow .3s ease;
}
.site-header.scrolled .nav-pill{ box-shadow:0 12px 34px -10px rgba(11,27,43,.26); }
.site-logo{ display:flex; align-items:center; gap:10px; flex:0 0 auto; }
.logo-mark{
width:34px; height:34px; border-radius:11px; flex:0 0 auto;
background:linear-gradient(135deg,#1657C8,#2A74E8); color:#fff;
display:grid; place-items:center; font-weight:700; font-size:16px; letter-spacing:.02em;
}
.logo-text{ font-size:16px; font-weight:700; color:var(--ink-900); letter-spacing:-.01em; white-space:nowrap; }
.logo-text i{ font-style:normal; color:var(--brand-600); }
.nav-menu{ display:flex; align-items:center; gap:4px; margin-left:auto; }
.nav-link{
display:inline-flex; align-items:center; gap:6px;
padding:9px 14px; border-radius:var(--radius-pill);
font-size:15px; font-weight:500; color:var(--ink-500);
transition:color .2s ease, background-color .2s ease;
}
.nav-link:hover{ color:var(--brand-600); background:var(--brand-50); }
.nav-link.active{ color:var(--ink-900); background:var(--brand-50); font-weight:600; }
.nav-link.active::before{ content:""; width:4px; height:4px; border-radius:50%; background:var(--brand-500); }
.nav-toggle{
display:none; width:44px; height:44px; flex:0 0 auto;
border:1px solid var(--line); border-radius:50%; background:#fff;
place-items:center; cursor:pointer; transition:background-color .2s ease;
}
.nav-toggle:hover{ background:var(--brand-50); }
.nav-toggle span{ display:block; width:18px; height:2px; border-radius:2px; background:var(--ink-700); position:relative; transition:background-color .2s ease; }
.nav-toggle span::before,.nav-toggle span::after{
content:""; position:absolute; left:0; width:18px; height:2px; border-radius:2px;
background:var(--ink-700); transition:transform .25s ease, top .25s ease;
}
.nav-toggle span::before{ top:-6px; }
.nav-toggle span::after{ top:6px; }
.nav-toggle[aria-expanded="true"] span{ background:transparent; }
.nav-toggle[aria-expanded="true"] span::before{ top:0; transform:rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after{ top:0; transform:rotate(-45deg); }
.mobile-panel{ display:none; }
@media (max-width:980px){
.nav-menu, .nav-cta{ display:none; }
.nav-toggle{ display:grid; margin-left:auto; }
.mobile-panel{
display:none; flex-direction:column; gap:4px;
margin-top:10px; padding:14px;
background:rgba(255,255,255,.96); border:1px solid var(--line);
border-radius:22px; box-shadow:var(--shadow-nav);
}
.mobile-panel.open{ display:flex; }
.mobile-panel a{
display:flex; align-items:center; min-height:52px; padding:0 16px;
border-radius:14px; font-size:16px; font-weight:500; color:var(--ink-700);
}
.mobile-panel a:hover{ background:var(--brand-50); color:var(--brand-600); }
.mobile-panel a.active{ background:var(--brand-50); color:var(--ink-900); font-weight:600; }
.mobile-panel .mobile-cta{ justify-content:center; margin-top:8px; color:#fff; }
.logo-text{ font-size:15px; }
}
/* ---------- buttons ---------- */
.btn{
display:inline-flex; align-items:center; justify-content:center; gap:8px;
min-height:46px; padding:12px 24px; border-radius:var(--radius-pill);
font-size:15px; font-weight:600; cursor:pointer; border:1px solid transparent;
transition:transform .22s ease, box-shadow .22s ease, background-color .22s ease, border-color .22s ease, color .22s ease;
}
.btn-primary{ background:var(--brand-600); color:#fff; box-shadow:0 10px 24px -14px rgba(22,87,200,.9); }
.btn-primary:hover{ background:var(--brand-700); transform:translateY(-1px); box-shadow:0 16px 30px -14px rgba(22,87,200,.9); }
.btn-primary:active{ transform:translateY(0); }
.btn-ghost{ background:#fff; color:var(--ink-700); border-color:var(--line); }
.btn-ghost:hover{ background:var(--brand-50); border-color:var(--brand-500); color:var(--brand-700); }
.btn-accent{ background:var(--accent); color:#fff; }
.btn-accent:hover{ background:var(--accent-dark); transform:translateY(-1px); }
.btn-outline-light{ background:transparent; color:#fff; border-color:rgba(255,255,255,.6); }
.btn-outline-light:hover{ background:rgba(255,255,255,.14); }
.btn:disabled{ opacity:.4; cursor:not-allowed; }
.link-more{ display:inline-flex; align-items:center; gap:6px; font-size:15px; font-weight:600; color:var(--brand-600); }
.link-more span{ transition:transform .2s ease; }
.link-more:hover span{ transform:translateX(2px); }
/* ---------- hero ---------- */
.cat-hero{
position:relative; overflow:hidden;
padding:56px 0 72px;
background:linear-gradient(180deg,#F4F7FB 0%,#FFFFFF 100%);
}
.cat-hero::before{
content:""; position:absolute; inset:0;
background-image:linear-gradient(180deg,rgba(244,247,251,.86),rgba(255,255,255,.96)), url("/assets/images/backpic/back-1.png");
background-size:cover; background-position:center right;
opacity:.5; pointer-events:none;
}
.cat-hero .container{ position:relative; z-index:1; }
.breadcrumb{ display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:13.5px; color:var(--ink-500); margin-bottom:22px; }
.breadcrumb a{ color:var(--ink-500); }
.breadcrumb a:hover{ color:var(--brand-600); }
.breadcrumb .sep{ color:var(--ink-300); }
.breadcrumb [aria-current]{ color:var(--ink-700); font-weight:600; }
.eyebrow{
display:inline-flex; align-items:center; gap:8px;
padding:6px 14px; border-radius:var(--radius-pill);
background:var(--brand-50); color:var(--brand-700);
font-size:12.5px; font-weight:600; letter-spacing:.02em;
}
.eyebrow::before{ content:""; width:6px; height:6px; border-radius:50%; background:var(--brand-500); }
.cat-hero-grid{ display:grid; grid-template-columns:1fr; gap:44px; align-items:center; margin-top:22px; }
@media (min-width:1024px){ .cat-hero-grid{ grid-template-columns:1.05fr .95fr; gap:56px; } }
.cat-hero h1{
font-size:clamp(28px,4.2vw,46px); line-height:1.22; font-weight:700;
letter-spacing:-.02em; margin:20px 0 16px;
}
.lede{ font-size:18px; font-weight:600; color:var(--ink-700); margin-bottom:14px; }
.hero-text{ font-size:16px; color:var(--ink-500); max-width:560px; }
.pill-row{ display:flex; flex-wrap:wrap; gap:10px; margin:26px 0 30px; }
.pill{
display:inline-flex; align-items:center; gap:8px;
padding:9px 16px; border-radius:var(--radius-pill);
background:#fff; border:1px solid var(--line); box-shadow:var(--shadow-card);
font-size:14px; font-weight:500; color:var(--ink-700);
}
.pill::before{ content:""; width:8px; height:8px; border-radius:3px; background:var(--brand-500); }
.pill:nth-child(2n)::before{ background:var(--accent); }
.pill:nth-child(3n)::before{ background:var(--teal); }
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; }
.hero-side{ position:relative; }
.hero-side .hero-img{
width:100%; border-radius:var(--radius-img); object-fit:cover;
aspect-ratio:16/11; box-shadow:var(--shadow-card);
}
.side-card{
position:relative; margin-top:-46px; margin-left:auto; width:min(320px,88%);
background:#fff; border:1px solid var(--line); border-radius:16px;
box-shadow:var(--shadow-hover); padding:18px 20px;
}
.side-card dl{ margin:0; display:grid; gap:12px; }
.side-card .row{ display:flex; align-items:center; justify-content:space-between; gap:12px; }
.side-card dt{ font-size:13px; color:var(--ink-500); }
.side-card dd{ margin:0; font-size:15px; font-weight:600; color:var(--ink-900); font-variant-numeric:tabular-nums; }
/* ---------- layout (toc + content) ---------- */
.layout{ display:grid; grid-template-columns:1fr; gap:44px; align-items:start; padding:var(--sp-section) 20px; max-width:1200px; margin:0 auto; }
@media (min-width:768px){ .layout{ padding-left:32px; padding-right:32px; } }
@media (min-width:1024px){
.layout{ grid-template-columns:250px minmax(0,1fr); gap:52px; padding-left:40px; padding-right:40px; }
.toc{ position:sticky; top:96px; }
}
.toc{
background:#fff; border:1px solid var(--line); border-radius:var(--radius-card);
box-shadow:var(--shadow-card); padding:20px 18px;
}
.toc h2{ font-size:14px; letter-spacing:.04em; color:var(--ink-500); font-weight:600; margin-bottom:12px; }
.toc ul{ display:grid; gap:4px; }
.toc a{
display:flex; align-items:center; gap:8px; padding:9px 12px; border-radius:12px;
font-size:14.5px; color:var(--ink-700); transition:background-color .2s ease, color .2s ease;
}
.toc a::before{ content:""; width:5px; height:5px; border-radius:50%; background:var(--ink-300); transition:background-color .2s ease; }
.toc a:hover{ background:var(--brand-50); color:var(--brand-700); }
.toc a:hover::before{ background:var(--brand-600); }
@media (max-width:1023px){
.toc{ overflow-x:auto; }
.toc ul{ display:flex; gap:8px; min-width:max-content; }
.toc a{ background:#F7FAFF; border:1px solid var(--line); white-space:nowrap; }
}
.content{ display:grid; gap:32px; }
.block{
background:#fff; border:1px solid var(--line); border-radius:var(--radius-card);
box-shadow:var(--shadow-card); padding:32px 28px;
transition:box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}
@media (min-width:768px){ .block{ padding:40px 38px; } }
.block:hover{ box-shadow:var(--shadow-hover); border-color:var(--brand-50); }
.block h2{ font-size:clamp(21px,2.4vw,28px); line-height:1.35; font-weight:700; margin-bottom:14px; }
.block > p{ color:var(--ink-500); margin-bottom:20px; }
.block h3{ font-size:19px; font-weight:600; margin-bottom:8px; }
.check-list{ display:grid; gap:14px; }
.check-list li{ display:flex; gap:12px; align-items:flex-start; font-size:15.5px; color:var(--ink-700); }
.check-list li::before{
content:""; flex:0 0 auto; width:20px; height:20px; margin-top:5px; border-radius:6px;
background:var(--brand-50) url("data:image/svg+xml;utf8,") center/12px no-repeat;
}
.tip{
display:flex; gap:12px; align-items:flex-start;
margin-top:24px; padding:16px 18px; border-radius:14px;
background:#EAFBF8; border:1px solid rgba(18,178,166,.28); color:#0C5D57; font-size:14.8px;
}
.tip strong{ color:#0A4F4A; }
.tip::before{ content:"!"; flex:0 0 auto; width:20px; height:20px; border-radius:50%; background:var(--teal); color:#fff; font-size:13px; font-weight:700; display:grid; place-items:center; }
.steps{ display:grid; gap:16px; counter-reset:step; }
.step{
display:grid; grid-template-columns:44px minmax(0,1fr); gap:16px; align-items:start;
padding:18px 20px; border:1px solid var(--line); border-radius:16px; background:#FBFDFF;
transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.step:hover{ transform:translateY(-3px); box-shadow:var(--shadow-card); border-color:var(--brand-50); }
.step .num{
width:44px; height:44px; border-radius:14px; display:grid; place-items:center;
background:var(--brand-50); color:var(--brand-700); font-weight:700; font-size:16px;
font-variant-numeric:tabular-nums;
}
.step h3{ font-size:17px; font-weight:600; margin-bottom:4px; }
.step p{ font-size:14.6px; color:var(--ink-500); }
.grid-3{ display:grid; gap:20px; grid-template-columns:1fr; }
@media (min-width:768px){ .grid-3{ grid-template-columns:repeat(3,minmax(0,1fr)); } }
.mini-card{
background:#FBFDFF; border:1px solid var(--line); border-radius:16px; padding:24px 22px;
transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.mini-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-hover); border-color:var(--brand-50); }
.mini-card .tag{
display:inline-flex; padding:4px 10px; border-radius:var(--radius-pill);
background:var(--brand-50); color:var(--brand-700); font-size:12px; font-weight:600; margin-bottom:12px;
}
.mini-card h3{ font-size:17px; font-weight:600; margin-bottom:8px; }
.mini-card p{ font-size:14.5px; color:var(--ink-500); }
.split{ display:grid; gap:28px; align-items:center; }
@media (min-width:900px){ .split{ grid-template-columns:1.02fr .98fr; gap:40px; } }
.split img{ width:100%; border-radius:var(--radius-img); box-shadow:var(--shadow-card); aspect-ratio:4/3; object-fit:cover; }
.issue-list{ border:1px solid var(--line); border-radius:16px; overflow:hidden; }
.issue-row{
display:grid; grid-template-columns:1fr; gap:6px;
padding:16px 20px; border-bottom:1px solid var(--line); background:#fff;
transition:background-color .2s ease;
}
.issue-row:last-child{ border-bottom:0; }
.issue-row:nth-child(odd){ background:#FBFDFF; }
.issue-row:hover{ background:var(--brand-50); }
@media (min-width:768px){ .issue-row{ grid-template-columns:250px minmax(0,1fr); gap:18px; align-items:baseline; } }
.issue-row strong{ font-size:15.5px; font-weight:600; color:var(--ink-900); }
.issue-row span{ font-size:14.6px; color:var(--ink-500); }
.pick-grid{ display:grid; gap:22px; grid-template-columns:1fr; }
@media (min-width:700px){ .pick-grid{ grid-template-columns:repeat(3,minmax(0,1fr)); } }
.pick-card{
display:flex; flex-direction:column; background:#fff; border:1px solid var(--line);
border-radius:var(--radius-card); overflow:hidden; box-shadow:var(--shadow-card);
transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.pick-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-hover); border-color:var(--brand-50); }
.pick-card .thumb{ overflow:hidden; aspect-ratio:16/10; }
.pick-card .thumb img{ width:100%; height:100%; object-fit:cover; transition:transform .4s ease; }
.pick-card:hover .thumb img{ transform:scale(1.02); }
.pick-card .body{ padding:20px 20px 22px; display:grid; gap:8px; }
.pick-card h3{ font-size:17px; font-weight:600; }
.pick-card p{ font-size:14.4px; color:var(--ink-500); }
/* ---------- FAQ ---------- */
.faq-wrap{ max-width:880px; margin:0 auto; display:grid; gap:14px; }
.faq-item{
background:#fff; border:1px solid var(--line); border-radius:14px;
box-shadow:var(--shadow-card); overflow:hidden; transition:border-color .2s ease;
}
.faq-item:hover{ border-color:var(--brand-50); }
.faq-q{
width:100%; display:flex; align-items:center; justify-content:space-between; gap:16px;
padding:20px 22px; background:transparent; border:0; cursor:pointer; text-align:left;
font-size:17px; font-weight:600; color:var(--ink-900);
}
.faq-icon{
flex:0 0 auto; width:26px; height:26px; border-radius:50%;
display:grid; place-items:center; background:var(--brand-50); color:var(--brand-700);
font-size:16px; font-weight:600; transition:transform .3s ease;
}
.faq-item.open .faq-icon{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .35s ease, opacity .3s ease; opacity:0; }
.faq-item.open .faq-a{ max-height:420px; opacity:1; }
.faq-a p{ padding:0 22px 20px; font-size:15px; color:var(--ink-500); }
/* ---------- CTA ---------- */
.cta-band{
position:relative; overflow:hidden;
background:var(--brand-700); color:#fff; border-radius:24px;
padding:48px 32px; display:grid; gap:26px; align-items:center;
}
@media (min-width:900px){ .cta-band{ grid-template-columns:1.4fr .6fr; padding:52px 48px; } }
.cta-band::after{
content:""; position:absolute; right:-60px; top:-60px; width:260px; height:260px; border-radius:50%;
border:1px solid rgba(255,255,255,.16); opacity:.5; pointer-events:none;
}
.cta-band h2{ color:#fff; font-size:clamp(22px,2.6vw,30px); line-height:1.3; margin-bottom:12px; }
.cta-band p{ color:rgba(255,255,255,.82); font-size:15.4px; }
.cta-actions{ display:flex; flex-wrap:wrap; gap:14px; }
/* ---------- footer ---------- */
.site-footer{ background:var(--ink-900); color:#C8D3E1; margin-top:var(--sp-section); padding:64px 0 26px; }
.footer-grid{ display:grid; gap:36px; grid-template-columns:1fr; }
@media (min-width:700px){ .footer-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media (min-width:1024px){ .footer-grid{ grid-template-columns:1.5fr 1fr 1fr 1.2fr; gap:40px; } }
.footer-brand p{ font-size:14.4px; color:#93A3B8; margin-top:16px; max-width:340px; }
.footer-logo{ display:inline-flex; align-items:center; gap:10px; font-size:16px; font-weight:700; color:#fff; }
.footer-logo i{ font-style:normal; color:#7FB0FF; }
.footer-col h3{ font-size:14px; font-weight:600; color:#fff; margin-bottom:16px; letter-spacing:.02em; }
.footer-col ul{ display:grid; gap:10px; }
.footer-col li{ font-size:14.2px; color:#93A3B8; }
.footer-col a{ color:#93A3B8; transition:color .2s ease; }
.footer-col a:hover{ color:#fff; text-decoration:underline; text-underline-offset:3px; }
.footer-bottom{
margin-top:44px; padding-top:22px; border-top:1px solid rgba(255,255,255,.12);
display:flex; flex-wrap:wrap; gap:10px 24px; justify-content:space-between;
font-size:13.4px; color:#8395AB;
}
@media (prefers-reduced-motion:reduce){
*,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}
/* roulang page: article */
:root{
--brand-700:#0F47A6;--brand-600:#1657C8;--brand-500:#2A74E8;--brand-50:#EEF4FF;--brand-100:#DCE8FF;
--accent:#FF7A2F;--accent-600:#E8621A;--teal:#12B2A6;
--ink-900:#0B1B2B;--ink-700:#1E3350;--ink-500:#5A6B82;--ink-300:#9AA9BC;--line:#E4EAF2;
--bg:#F4F7FB;--surface:#FFFFFF;--soft:#F7FAFF;
--r-card:18px;--r-img:20px;--r-pill:999px;--r-input:12px;
--shadow-card:0 1px 2px rgba(11,27,43,.04),0 10px 30px -14px rgba(11,27,43,.16);
--shadow-hover:0 18px 40px -18px rgba(11,27,43,.22);
--shadow-nav:0 8px 28px -12px rgba(11,27,43,.18);
--gap-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body.page-article{
margin:0;background:var(--bg);color:var(--ink-700);
font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
font-size:17px;line-height:1.8;-webkit-font-smoothing:antialiased;
}
body.page-article img{max-width:100%;display:block}
body.page-article a{color:inherit;text-decoration:none}
body.page-article ul,body.page-article ol{margin:0}
body.page-article p{margin:0}
body.page-article h1,body.page-article h2,body.page-article h3,body.page-article h4{margin:0}
body.page-article button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:var(--gap-section) 0}
.section-tight{padding:56px 0}
/* ---------- 导航 ---------- */
.site-header{position:sticky;top:12px;z-index:70;padding:0 16px}
.nav-shell{max-width:1160px;margin:0 auto;position:relative}
.nav-pill{
display:flex;align-items:center;gap:16px;
background:rgba(255,255,255,.88);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
border:1px solid var(--line);border-radius:var(--r-pill);
padding:10px 14px 10px 20px;box-shadow:var(--shadow-nav);
transition:box-shadow .28s ease;
}
.site-header.scrolled .nav-pill{box-shadow:0 14px 34px -14px rgba(11,27,43,.3)}
.site-logo{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink-900);white-space:nowrap}
.logo-mark{
width:34px;height:34px;border-radius:11px;display:grid;place-items:center;flex:0 0 auto;
background:linear-gradient(135deg,var(--brand-500),var(--brand-700));color:#fff;font-weight:800;font-size:16px;
}
.logo-text{font-size:16px;letter-spacing:-.01em;line-height:1}
.logo-text i{font-style:normal;color:var(--brand-600);font-weight:600;font-size:.86em;margin-left:3px}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
display:inline-flex;align-items:center;min-height:40px;padding:8px 14px;border-radius:var(--r-pill);
font-size:15px;font-weight:500;color:var(--ink-500);transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--brand-50);color:var(--brand-700)}
.nav-link.active{background:var(--brand-50);color:var(--ink-900);font-weight:600;position:relative}
.nav-link.active::after{
content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
width:4px;height:4px;border-radius:50%;background:var(--brand-600);
}
.nav-toggle{
display:none;width:44px;height:44px;border-radius:var(--r-pill);border:1px solid var(--line);
background:#fff;align-items:center;justify-content:center;margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-700);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink-700);
transition:transform .24s ease,opacity .24s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}
.mobile-panel{
display:none;position:absolute;left:0;right:0;top:calc(100% + 10px);
background:#fff;border:1px solid var(--line);border-radius:22px;padding:14px;
box-shadow:0 24px 48px -20px rgba(11,27,43,.28);
}
.mobile-panel.open{display:block}
.mobile-panel a{
display:flex;align-items:center;min-height:52px;padding:0 16px;border-radius:14px;
font-size:16px;font-weight:500;color:var(--ink-700);
}
.mobile-panel a:hover,.mobile-panel a.active{background:var(--brand-50);color:var(--brand-700)}
.mobile-panel .mobile-cta{margin-top:10px;justify-content:center;color:#fff}
/* ---------- 按钮 ---------- */
.btn{
display:inline-flex;align-items:center;justify-content:center;gap:8px;
min-height:44px;padding:12px 24px;border-radius:var(--r-pill);border:1px solid transparent;
font-size:15px;font-weight:600;line-height:1.2;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 10px 24px -12px rgba(22,87,200,.6)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(15,71,166,.65)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:#fff;color:var(--ink-700);border-color:var(--line)}
.btn-secondary:hover{background:var(--brand-50);border-color:var(--brand-500);color:var(--brand-700)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-600);transform:translateY(-1px)}
.btn-ghost-white{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost-white:hover{background:rgba(255,255,255,.12);border-color:#fff}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink-500);transition:color .2s ease}
.link-arrow::after{content:"→";transition:transform .2s ease}
.link-arrow:hover{color:var(--brand-600)}
.link-arrow:hover::after{transform:translateX(3px)}
/* ---------- 文章头部 ---------- */
.article-hero{
position:relative;overflow:hidden;
background:linear-gradient(180deg,#EEF4FF 0%,#F4F7FB 78%,#F4F7FB 100%);
padding:44px 0 32px;
}
.article-hero::after{
content:"";position:absolute;right:-120px;top:-160px;width:420px;height:420px;border-radius:50%;
background:radial-gradient(circle,rgba(42,116,232,.14),rgba(42,116,232,0) 68%);
}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-500);position:relative;z-index:1}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:var(--ink-300)}
.breadcrumb .current{color:var(--ink-700);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{position:relative;z-index:1;margin-top:22px;max-width:900px}
.badge{
display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
background:var(--brand-50);color:var(--brand-700);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.article-head h1{
margin-top:16px;font-size:clamp(28px,4vw,44px);line-height:1.24;font-weight:700;
color:var(--ink-900);letter-spacing:-.02em;
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-top:20px;font-size:13px;color:var(--ink-500)}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item time{font-variant-numeric:tabular-nums;color:var(--ink-700)}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--ink-300)}
.share-btn{
margin-left:auto;min-height:38px;padding:8px 16px;border-radius:var(--r-pill);
border:1px solid var(--line);background:#fff;color:var(--ink-700);font-size:13px;font-weight:600;
transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.share-btn:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-50)}
/* ---------- 正文布局 ---------- */
.article-layout{
display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px;align-items:start;
padding-top:40px;
}
.cover-figure{margin:0 0 32px;background:#fff;border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;box-shadow:var(--shadow-card)}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease}
.cover-figure:hover img{transform:scale(1.02)}
.cover-figure figcaption{padding:12px 18px;text-align:center;font-size:13px;color:var(--ink-500);border-top:1px solid var(--line);background:var(--soft)}
.prose{max-width:780px;font-size:17px;line-height:1.9;color:var(--ink-700);word-break:break-word}
.prose > * + *{margin-top:18px}
.prose h2{margin-top:44px;font-size:clamp(21px,2.4vw,27px);line-height:1.36;font-weight:700;color:var(--ink-900);letter-spacing:-.01em}
.prose h3{margin-top:32px;font-size:19px;line-height:1.5;font-weight:600;color:var(--ink-900)}
.prose h4{margin-top:24px;font-size:17px;font-weight:600;color:var(--ink-900)}
.prose a{color:var(--brand-600);border-bottom:1px solid rgba(22,87,200,.3);transition:color .2s ease,border-color .2s ease}
.prose a:hover{color:var(--brand-700);border-bottom-color:var(--brand-700)}
.prose strong{color:var(--ink-900);font-weight:600}
.prose ul{display:grid;gap:10px}
.prose ul > li{position:relative;padding-left:22px}
.prose ul > li::before{content:"";position:absolute;left:4px;top:.75em;width:7px;height:7px;border-radius:50%;background:var(--brand-500)}
.prose ol{padding-left:22px;display:grid;gap:10px}
.prose ol > li{padding-left:4px}
.prose ol > li::marker{color:var(--brand-600);font-weight:700}
.prose blockquote{margin:26px 0;padding:18px 22px;background:var(--brand-50);border-left:3px solid var(--brand-500);border-radius:12px}
.prose img{border-radius:var(--r-img);margin:24px 0}
.prose figure{margin:26px 0}
.prose figcaption{text-align:center;font-size:13px;color:var(--ink-500);margin-top:10px}
.prose table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:14px;overflow:hidden;font-size:15px;background:#fff}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.prose th{background:var(--soft);color:var(--ink-900);font-weight:600}
.prose tr:last-child td{border-bottom:0}
.prose code{background:#F1F5FB;border-radius:6px;padding:2px 6px;font-size:14px;color:var(--brand-700)}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.tag-label{font-size:13px;color:var(--ink-500)}
.tag-pill{
display:inline-flex;align-items:center;min-height:38px;padding:7px 16px;border-radius:var(--r-pill);
background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink-700);
transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.tag-pill:hover{border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-2px)}
/* ---------- 侧栏 ---------- */
.article-aside{min-width:0}
.aside-sticky{position:sticky;top:96px;display:grid;gap:20px}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);padding:22px}
.aside-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.aside-title{font-size:15px;font-weight:700;color:var(--ink-900);letter-spacing:.01em}
.toc-toggle{
display:none;min-height:34px;padding:6px 12px;border-radius:var(--r-pill);border:1px solid var(--line);
background:#fff;font-size:12px;font-weight:600;color:var(--ink-500);
}
.toc-list{display:grid;gap:2px;margin-top:14px;max-height:340px;overflow:auto}
.toc-link{
display:block;padding:9px 10px;border-radius:10px;font-size:14px;color:var(--ink-500);line-height:1.6;
transition:background .2s ease,color .2s ease;
}
.toc-link:hover{background:var(--brand-50);color:var(--brand-700)}
.toc-link.level-3{padding-left:22px;font-size:13px}
.toc-empty{margin-top:14px;font-size:13px;color:var(--ink-500)}
.mini-list{display:grid;gap:12px;margin-top:14px}
.mini-list a{display:flex;gap:12px;align-items:center;padding:6px;border-radius:14px;transition:background .2s ease}
.mini-list a:hover{background:var(--soft)}
.mini-thumb{width:64px;height:64px;flex:0 0 auto;border-radius:12px;object-fit:cover}
.mini-body{min-width:0}
.mini-title{font-size:14px;font-weight:600;color:var(--ink-900);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-meta{font-size:12px;color:var(--ink-500);margin-top:2px}
.cta-mini{
background:linear-gradient(150deg,var(--brand-700),#0B2E6B);color:#fff;border-radius:var(--r-card);
padding:24px;box-shadow:0 20px 40px -22px rgba(15,71,166,.65);
}
.cta-mini-title{font-size:16px;font-weight:700;line-height:1.5}
.cta-mini-text{margin-top:10px;font-size:13px;line-height:1.8;color:rgba(255,255,255,.78)}
.cta-mini .btn{margin-top:16px;width:100%}
/* ---------- 空态 ---------- */
.empty-state{
background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);
padding:64px 28px;text-align:center;margin-top:40px;
}
.empty-icon{
width:64px;height:64px;border-radius:20px;margin:0 auto 20px;display:grid;place-items:center;
background:var(--brand-50);color:var(--brand-600);font-size:26px;font-weight:700;
}
.empty-title{font-size:22px;font-weight:700;color:var(--ink-900)}
.empty-desc{margin-top:12px;font-size:15px;color:var(--ink-500);max-width:520px;margin-left:auto;margin-right:auto}
.empty-state .btn{margin-top:24px}
/* ---------- 相关推荐 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--brand-600);text-transform:uppercase}
.section-head h2{margin-top:10px;font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700;color:var(--ink-900);letter-spacing:-.01em}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
overflow:hidden;box-shadow:var(--shadow-card);
transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-100)}
.post-thumb{overflow:hidden;background:var(--soft)}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-tag{align-self:flex-start;padding:4px 10px;border-radius:var(--r-pill);background:var(--brand-50);color:var(--brand-700);font-size:12px;font-weight:600}
.post-title{font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.5}
.post-desc{font-size:14px;line-height:1.75;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;font-size:13px;color:var(--ink-500);font-variant-numeric:tabular-nums}
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:36px}
.post-nav-item{
display:flex;flex-direction:column;gap:6px;padding:20px 22px;background:#fff;border:1px solid var(--line);
border-radius:var(--r-card);transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.post-nav-item span{font-size:12px;color:var(--ink-500)}
.post-nav-item strong{font-size:15px;font-weight:600;color:var(--ink-900)}
.post-nav-item:hover{border-color:var(--brand-500);transform:translateY(-3px);box-shadow:var(--shadow-hover)}
/* ---------- CTA 横幅 ---------- */
.cta-band{
position:relative;overflow:hidden;border-radius:24px;padding:48px 40px;color:#fff;
background-image:linear-gradient(120deg,rgba(15,71,166,.95),rgba(11,27,43,.93)),url(/assets/images/backpic/back-3.png);
background-size:cover;background-position:center;
display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::after{
content:"";position:absolute;right:-60px;bottom:-80px;width:260px;height:260px;border-radius:50%;
background:radial-gradient(circle,rgba(255,122,47,.28),rgba(255,122,47,0) 70%);
}
.cta-band-text{position:relative;z-index:1;max-width:620px}
.cta-band-text h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.cta-band-text p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.8)}
.cta-band-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}
/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);margin-top:var(--gap-section);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px}
.footer-logo i{font-style:normal;color:#93B7F5;font-size:.86em;margin-left:3px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);max-width:320px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:14px;line-height:1.7;color:rgba(255,255,255,.62)}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:rgba(255,255,255,.5);
}
@media (max-width:1024px){
:root{--gap-section:72px}
.nav-menu,.nav-cta{display:none}
.nav-toggle{display:inline-flex}
.article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
.article-aside{order:2}
.aside-sticky{position:static}
.toc-toggle{display:inline-flex}
.toc-list[data-open="false"]{display:none}
.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
:root{--gap-section:56px}
body.page-article{font-size:16px}
.container{padding:0 20px}
.nav-pill{padding:8px 10px 8px 14px;gap:10px}
.logo-text{font-size:15px}
.article-hero{padding:32px 0 24px}
.article-head h1{margin-top:14px}
.share-btn{margin-left:0}
.prose{font-size:16px;line-height:1.85}
.prose > * + *{margin-top:16px}
.cta-band{padding:32px 24px;border-radius:20px}
.post-nav{grid-template-columns:minmax(0,1fr)}
.footer-grid{grid-template-columns:1fr;gap:28px}
.footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:520px){
.related-grid{grid-template-columns:minmax(0,1fr)}
.empty-state{padding:44px 20px}
.breadcrumb .current{max-width:36ch}
}
@media (prefers-reduced-motion:reduce){
*{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}
/* roulang page: category2 */
:root{
--brand-700:#0F47A6;
--brand-600:#1657C8;
--brand-500:#2A74E8;
--brand-50:#EEF4FF;
--accent:#FF7A2F;
--accent-deep:#E8621A;
--teal:#12B2A6;
--ink-900:#0B1B2B;
--ink-700:#1E3350;
--ink-600:#3C5570;
--ink-500:#5A6B82;
--ink-300:#9AA9BC;
--line:#E4EAF2;
--bg:#F4F7FB;
--surface:#FFFFFF;
--surface-alt:#F7FAFF;
--r-card:18px;
--r-img:20px;
--r-pill:999px;
--r-input:12px;
--shadow-card:0 1px 2px rgba(11,27,43,.04),0 10px 30px -14px rgba(11,27,43,.16);
--shadow-hover:0 18px 40px -18px rgba(11,27,43,.22);
--shadow-nav:0 8px 28px -12px rgba(11,27,43,.18);
--section-y:96px;
--ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
margin:0;
font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
font-size:16px;
line-height:1.8;
color:var(--ink-700);
background:var(--bg);
-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
summary{list-style:none}
summary::-webkit-details-marker{display:none}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1024px){.container{padding:0 40px}}
/* ============ 导航 ============ */
.site-header{position:sticky;top:12px;z-index:60;transition:top .3s var(--ease)}
.nav-shell{max-width:1160px;margin:0 auto;padding:0 16px;position:relative}
.nav-pill{
display:flex;align-items:center;gap:16px;
padding:9px 12px 9px 18px;
background:rgba(255,255,255,.88);
-webkit-backdrop-filter:blur(10px);
backdrop-filter:blur(10px);
border:1px solid var(--line);
border-radius:var(--r-pill);
box-shadow:var(--shadow-nav);
transition:box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header.is-scrolled .nav-pill{box-shadow:0 14px 36px -14px rgba(11,27,43,.3);background:rgba(255,255,255,.96)}
.site-logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
background:linear-gradient(140deg,var(--brand-600),var(--brand-500));
color:#fff;font-weight:700;font-size:18px;letter-spacing:.02em;
box-shadow:0 6px 16px -8px rgba(22,87,200,.9);
}
.logo-text{font-size:16px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap}
.logo-text i{font-style:normal;font-weight:500;color:var(--ink-500);font-size:13px;margin-left:4px}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
display:inline-flex;align-items:center;height:40px;padding:0 14px;
font-size:15px;font-weight:500;color:var(--ink-600);
border-radius:var(--r-pill);
transition:color .2s var(--ease),background .2s var(--ease);
white-space:nowrap;
}
.nav-link:hover{color:var(--brand-600);background:var(--brand-50)}
.nav-link.active{color:var(--ink-900);background:var(--brand-50);position:relative}
.nav-link.active::before{
content:"";position:absolute;left:8px;top:50%;transform:translateY(-50%);
width:5px;height:5px;border-radius:50%;background:var(--brand-600);
}
.nav-link.active{padding-left:22px}
.nav-cta{flex:0 0 auto;margin-left:8px}
.nav-toggle{
display:none;width:44px;height:44px;border-radius:var(--r-pill);
border:1px solid var(--line);background:#fff;position:relative;margin-left:auto;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
position:absolute;left:50%;width:18px;height:2px;background:var(--ink-700);
border-radius:2px;transform:translateX(-50%);transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";left:0;transform:none;top:-6px}
.nav-toggle span::after{content:"";left:0;transform:none;top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(45deg);top:0}
.nav-toggle[aria-expanded="true"] span::after{transform:rotate(-45deg);top:0}
.mobile-panel{display:none}
.mobile-panel a{
display:flex;align-items:center;min-height:56px;padding:0 18px;
font-size:16px;font-weight:500;color:var(--ink-700);
border-bottom:1px solid var(--line);
}
.mobile-panel a.active{color:var(--brand-600);background:var(--brand-50)}
.mobile-panel .mobile-cta{margin:16px 18px 6px;border-bottom:0;justify-content:center;min-height:48px}
@media (max-width:960px){
.nav-menu,.nav-cta{display:none}
.nav-toggle{display:block}
.mobile-panel.open{
display:flex;flex-direction:column;
position:absolute;left:16px;right:16px;top:calc(100% + 10px);
background:#fff;border:1px solid var(--line);border-radius:24px;
box-shadow:var(--shadow-nav);overflow:hidden;padding-bottom:10px;
}
}
@media (max-width:520px){
.logo-text i{display:none}
.nav-pill{padding:7px 10px 7px 12px}
}
/* ============ 按钮 ============ */
.btn{
display:inline-flex;align-items:center;justify-content:center;gap:8px;
min-height:46px;padding:12px 24px;border-radius:var(--r-pill);
font-size:15px;font-weight:600;line-height:1;
border:1px solid transparent;
transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 10px 24px -14px rgba(22,87,200,.9)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(15,71,166,.85)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px -12px rgba(15,71,166,.8)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-700)}
.btn-ghost:hover{background:var(--brand-50);border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 12px 26px -14px rgba(232,98,26,.9)}
.btn-accent:hover{background:var(--accent-deep);transform:translateY(-1px)}
.btn-light{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink-600)}
.btn-link span{transition:transform .2s var(--ease)}
.btn-link:hover{color:var(--brand-600)}
.btn-link:hover span{transform:translateX(3px)}
/* ============ 页头 / 内页 Banner ============ */
.page-hero{
position:relative;
margin-top:-72px;
padding:158px 0 76px;
background-image:linear-gradient(105deg,rgba(238,244,255,.96) 0%,rgba(247,250,255,.9) 52%,rgba(255,255,255,.72) 100%),url('/assets/images/backpic/back-3.png');
background-size:cover;background-position:center;
border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);margin-bottom:22px}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:var(--ink-300)}
.eyebrow{
display:inline-flex;align-items:center;gap:8px;
padding:6px 14px;border-radius:var(--r-pill);
background:var(--brand-50);color:var(--brand-700);
font-size:12px;font-weight:600;letter-spacing:.04em;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500)}
.page-title{
font-size:clamp(30px,4.6vw,50px);line-height:1.2;font-weight:700;
letter-spacing:-.02em;color:var(--ink-900);max-width:900px;
}
.page-lead{margin-top:20px;font-size:17px;line-height:1.8;color:var(--ink-600);max-width:720px}
.chip-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.chip{
display:inline-flex;align-items:center;gap:8px;
padding:8px 16px;border-radius:var(--r-pill);
background:#fff;border:1px solid var(--line);
font-size:13px;font-weight:600;color:var(--ink-700);
box-shadow:var(--shadow-card);
}
.chip::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--teal)}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:40px;max-width:760px}
.stat-card{
background:#fff;border:1px solid var(--line);border-radius:16px;
padding:18px 20px;box-shadow:var(--shadow-card);
}
.stat-card .stat-label{font-size:12px;font-weight:600;color:var(--ink-500);letter-spacing:.04em}
.stat-card .stat-value{font-size:20px;font-weight:700;color:var(--ink-900);margin-top:6px}
/* ============ 锚点胶囊条 ============ */
.anchor-wrap{position:sticky;top:78px;z-index:40;padding-top:24px}
.anchor-scroll{
display:flex;gap:10px;overflow-x:auto;padding:10px 12px;
background:rgba(255,255,255,.94);
-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
border:1px solid var(--line);border-radius:var(--r-pill);
box-shadow:var(--shadow-nav);
scrollbar-width:none;
}
.anchor-scroll::-webkit-scrollbar{display:none}
.anchor-scroll a{
flex:0 0 auto;display:inline-flex;align-items:center;min-height:38px;
padding:0 18px;border-radius:var(--r-pill);
background:var(--brand-50);color:var(--brand-700);
font-size:14px;font-weight:600;white-space:nowrap;
transition:background .2s var(--ease),color .2s var(--ease);
}
.anchor-scroll a:hover{background:var(--brand-600);color:#fff}
@media (max-width:768px){
.anchor-wrap{top:70px}
.anchor-scroll{border-radius:20px;padding:8px 10px}
}
/* ============ 通用区块 ============ */
.section{padding:var(--section-y) 0}
.section-tight{padding:72px 0}
.section-white{background:#fff}
.section-alt{background:var(--surface-alt)}
.section-head{max-width:760px;margin-bottom:44px}
.section-title{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;color:var(--ink-900);letter-spacing:-.01em}
.section-sub{margin-top:14px;font-size:16px;line-height:1.8;color:var(--ink-500)}
.kicker{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--brand-600);text-transform:uppercase;margin-bottom:14px}
/* ============ 交替图文 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split + .split{margin-top:88px}
.split-media{
border-radius:var(--r-img);overflow:hidden;
box-shadow:var(--shadow-card);border:1px solid var(--line);
}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .45s var(--ease)}
.split-media:hover img{transform:scale(1.02)}
.split--reverse .split-media{order:2}
.split h3{font-size:19px;font-weight:600;color:var(--ink-900);margin-bottom:14px}
.split p{font-size:16px;color:var(--ink-600)}
.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-700)}
.check-list li::before{
content:"";flex:0 0 auto;width:20px;height:20px;margin-top:4px;border-radius:50%;
background:var(--brand-50) url("data:image/svg+xml;utf8,") center/12px no-repeat;
}
.mini-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:26px}
.mini-card{
background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;
box-shadow:var(--shadow-card);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-50)}
.mini-card .mini-title{font-size:15px;font-weight:700;color:var(--ink-900)}
.mini-card .mini-text{font-size:13px;color:var(--ink-500);margin-top:6px;line-height:1.7}
.mini-card .mini-tag{
display:inline-block;font-size:12px;font-weight:600;color:var(--brand-700);
background:var(--brand-50);border-radius:var(--r-pill);padding:3px 10px;margin-bottom:10px;
}
@media (max-width:900px){
.split{grid-template-columns:1fr;gap:32px}
.split--reverse .split-media{order:0}
.split + .split{margin-top:64px}
.mini-grid{grid-template-columns:1fr}
}
/* ============ 时间线 ============ */
.timeline{display:grid;gap:14px;margin-top:8px}
.timeline-item{
display:grid;grid-template-columns:150px 1fr;gap:20px;align-items:start;
background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 22px;
box-shadow:var(--shadow-card);transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.timeline-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.timeline-time{font-size:14px;font-weight:700;color:var(--brand-600);font-variant-numeric:tabular-nums}
.timeline-body strong{display:block;font-size:16px;font-weight:700;color:var(--ink-900);margin-bottom:4px}
.timeline-body span{font-size:14px;color:var(--ink-500)}
@media (max-width:640px){
.timeline-item{grid-template-columns:1fr;gap:8px}
}
/* ============ 规则对比 ============ */
.rule-shell{
background:#fff;border:1px solid var(--line);border-radius:24px;
box-shadow:var(--shadow-card);overflow:hidden;
}
.rule-row{
display:grid;grid-template-columns:1.15fr 1fr 1fr 1.15fr;
align-items:stretch;
}
.rule-row:nth-of-type(even){background:var(--surface-alt)}
.rule-row > div{
padding:18px 22px;font-size:14.5px;color:var(--ink-700);
border-bottom:1px solid var(--line);
display:flex;flex-direction:column;justify-content:center;
}
.rule-head{background:var(--ink-900)!important}
.rule-head > div{color:#fff;font-size:13px;font-weight:700;letter-spacing:.04em;border-bottom:0}
.rule-head > div.key{color:#fff;background:rgba(255,122,47,.22)}
.rule-row .rule-label{font-weight:700;color:var(--ink-900);font-size:14.5px}
.rule-row .key{background:rgba(255,122,47,.07);font-weight:600;color:var(--ink-900)}
.rule-row:last-child > div{border-bottom:0}
.rule-note{display:flex;gap:10px;align-items:center;margin-top:18px;font-size:13px;color:var(--ink-500)}
.rule-note::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);flex:0 0 auto}
@media (max-width:860px){
.rule-shell{border-radius:20px;padding:14px;background:transparent;border:0;box-shadow:none}
.rule-head{display:none}
.rule-row{
display:block;background:#fff!important;border:1px solid var(--line);
border-radius:16px;padding:8px 6px;margin-bottom:14px;box-shadow:var(--shadow-card);
}
.rule-row > div{border-bottom:1px dashed var(--line);padding:12px 16px}
.rule-row > div:last-child{border-bottom:0}
.rule-row > div::before{
content:attr(data-label);display:block;font-size:12px;font-weight:700;
color:var(--ink-500);letter-spacing:.04em;margin-bottom:2px;
}
.rule-row .rule-label{font-size:16px;color:var(--ink-900)}
.rule-row .rule-label::before{display:none}
.rule-row .key{background:rgba(255,122,47,.08);border-radius:12px}
}
/* ============ 步骤条 ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{
background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
padding:26px 22px;position:relative;box-shadow:var(--shadow-card);
transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-50)}
.step-index{
width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
background:var(--brand-50);color:var(--brand-700);font-weight:700;font-size:15px;
font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:700;color:var(--ink-900);margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-500)}
@media (max-width:900px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}
/* ============ FAQ ============ */
.faq-list{max-width:880px;margin:0 auto;display:grid;gap:14px}
.faq-item{
background:#fff;border:1px solid var(--line);border-radius:14px;
box-shadow:var(--shadow-card);overflow:hidden;
transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:var(--brand-50);box-shadow:var(--shadow-hover)}
.faq-item summary{
display:flex;align-items:center;justify-content:space-between;gap:18px;
padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink-900);cursor:pointer;
}
.faq-icon{
flex:0 0 auto;width:26px;height:26px;border-radius:50%;
background:var(--brand-50);color:var(--brand-600);position:relative;
transition:transform .28s var(--ease),background .28s var(--ease);
}
.faq-icon::before,
.faq-icon::after{
content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--brand-600);color:#fff}
.faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-500)}
/* ============ CTA ============ */
.cta-banner{
position:relative;overflow:hidden;
background:var(--brand-700);color:#fff;
border-radius:24px;padding:52px 44px;
display:grid;grid-template-columns:1.35fr auto;gap:36px;align-items:center;
box-shadow:0 30px 60px -34px rgba(15,71,166,.7);
}
.cta-banner::after{
content:"";position:absolute;inset:0;pointer-events:none;
background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
background-size:22px 22px;opacity:.5;
}
.cta-banner h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;position:relative}
.cta-banner p{margin-top:14px;font-size:15.5px;color:rgba(255,255,255,.82);max-width:620px;position:relative}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative}
@media (max-width:860px){
.cta-banner{grid-template-columns:1fr;padding:36px 24px;border-radius:20px}
}
/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px}
.footer-logo{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:#fff}
.footer-logo i{font-style:normal;font-weight:500;font-size:13px;color:rgba(255,255,255,.55);margin-left:4px}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:12px}
.footer-col li{font-size:14px;color:rgba(255,255,255,.6)}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-col a:hover{color:#fff;transform:translateX(2px);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
margin-top:52px;padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.12);
display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
font-size:13px;color:rgba(255,255,255,.48);
}
@media (max-width:900px){
.footer-grid{grid-template-columns:1fr 1fr;gap:32px}
.site-footer{padding-top:56px;margin-top:64px}
}
@media (max-width:520px){
.footer-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
:root{--section-y:58px}
.page-hero{padding:136px 0 56px}
.section-tight{padding:56px 0}
.hero-stats{grid-template-columns:1fr;gap:12px}
}
@media (prefers-reduced-motion:reduce){
*{animation-duration:.001ms!important;transition-duration:.001ms!important}
html{scroll-behavior:auto}
}