:root{
  --c-main:#0891b2;
  --c-accent:#0ea5e9;
  --c-bg:#ecfeff;
  --c-text:#083344;
  --c-line:#cff4fb;
  --c-soft:#f4feff;
  --c-card:#ffffff;
  --radius:8px;
  --shadow:0 2px 10px rgba(8,51,68,.06);
  --font-serif:"Songti SC","STSong","Noto Serif SC","Source Han Serif SC",serif;
  --font-sans:"Inter","PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  line-height:1.85;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.serif{font-family:var(--font-serif);letter-spacing:.5px;line-height:1.5}
a{text-decoration:none;color:var(--c-main);transition:color .25s}
a:hover{color:var(--c-accent)}
img{max-width:100%;display:block}

/* 顶部滚动进度条 */
#readProgress{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--c-main),var(--c-accent));
  z-index:2000;transition:width .1s linear;
  box-shadow:0 0 8px rgba(14,165,233,.55);
}

/* 顶栏 */
.topbar{
  position:sticky;top:0;z-index:1200;
  background:rgba(236,254,255,.72);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:background .35s ease,box-shadow .35s ease;
}
.topbar.scrolled{
  background:rgba(255,255,255,.96);
  box-shadow:0 3px 16px rgba(8,51,68,.09);
}
.topbar-inner{
  max-width:1320px;margin:0 auto;padding:14px 22px;
  display:flex;align-items:center;gap:18px;
}
.brand{
  font-family:var(--font-serif);
  font-size:23px;font-weight:700;color:var(--c-text);
  white-space:nowrap;display:flex;align-items:center;gap:8px;
}
.brand i{color:var(--c-main);font-size:20px}
.brand:hover{color:var(--c-main)}
.nav-toggle{
  display:none;margin-left:auto;background:none;border:1px solid var(--c-line);
  border-radius:var(--radius);color:var(--c-text);font-size:18px;padding:4px 11px;cursor:pointer;
}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.main-nav a{
  color:var(--c-text);font-size:15px;font-weight:500;
  padding:7px 13px;border-radius:var(--radius);
  position:relative;transition:.25s;
}
.main-nav a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
  background:linear-gradient(90deg,var(--c-main),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform .3s;border-radius:2px;
}
.main-nav a:hover{color:var(--c-main);background:rgba(8,145,178,.07)}
.main-nav a:hover::after{transform:scaleX(1)}

/* 布局：左侧固定栏目侧栏 + 右侧内容 */
.layout{
  max-width:1320px;margin:0 auto;padding:26px 22px 60px;
  display:grid;grid-template-columns:236px 1fr;gap:30px;align-items:start;
}
.side-rail{position:sticky;top:88px;display:flex;flex-direction:column;gap:18px}
.rail-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);
  padding:18px 16px;box-shadow:var(--shadow);
}
.rail-card h4{
  font-size:15px;margin:0 0 12px;color:var(--c-main);
  display:flex;align-items:center;gap:7px;font-family:var(--font-sans);font-weight:700;letter-spacing:0;
}
.rail-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.rail-list a{
  display:flex;align-items:center;gap:9px;font-size:14.5px;color:var(--c-text);
  padding:8px 9px;border-radius:6px;transition:.22s;
}
.rail-list a i{color:var(--c-accent);width:16px;text-align:center;font-size:13px}
.rail-list a:hover{background:rgba(8,145,178,.08);color:var(--c-main);transform:translateX(2px)}
.rail-note{font-size:13px;color:#3f6b7a;line-height:1.8;margin:0}

.content-main{min-width:0}

/* 光晕装饰 */
.glow-wrap{position:relative;isolation:isolate}
.glow-wrap::before{
  content:"";position:absolute;width:340px;height:340px;top:-90px;right:-70px;
  background:radial-gradient(circle,rgba(14,165,233,.35),transparent 70%);
  filter:blur(46px);z-index:-1;pointer-events:none;
}
.glow-wrap::after{
  content:"";position:absolute;width:280px;height:280px;bottom:-80px;left:-60px;
  background:radial-gradient(circle,rgba(8,145,178,.28),transparent 70%);
  filter:blur(52px);z-index:-1;pointer-events:none;
}

/* Hero */
.hero{
  position:relative;border-radius:var(--radius);overflow:hidden;
  min-height:390px;display:flex;align-items:flex-end;
  box-shadow:var(--shadow);
}
.hero img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  filter:brightness(.42) saturate(1.05);
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,51,68,.25) 0%,rgba(8,51,68,.78) 100%);
}
.hero-content{position:relative;padding:40px 36px;color:#fff;max-width:760px}
.hero-kicker{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;
  letter-spacing:1.6px;text-transform:uppercase;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);
  padding:5px 12px;border-radius:20px;margin-bottom:16px;
}
.hero h1{
  font-size:clamp(26px,3.6vw,40px);margin:0 0 14px;color:#fff;font-weight:700;
}
.hero p{color:rgba(255,255,255,.9);font-size:16px;margin:0 0 22px;max-width:620px}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap}
.btn-glow{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 24px;border-radius:var(--radius);
  font-size:15px;font-weight:600;color:#fff;border:none;cursor:pointer;
  background:linear-gradient(120deg,var(--c-main),var(--c-accent),var(--c-main));
  background-size:220% 100%;
  transition:background-position .6s ease,transform .25s,box-shadow .3s;
  box-shadow:0 6px 18px rgba(8,145,178,.35);
}
.btn-glow:hover{background-position:100% 0;color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(14,165,233,.45)}
.btn-glow::after{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-20deg);
}
.btn-glow:hover::after{animation:shine .85s ease}
@keyframes shine{to{left:140%}}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius);font-size:15px;font-weight:600;
  color:#fff;border:1px solid rgba(255,255,255,.55);background:rgba(255,255,255,.06);
  transition:.28s;
}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff;border-color:#fff}

/* 通用区块 */
.section{padding:46px 0 6px}
.section-head{margin-bottom:22px}
.section-tag{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:1.6px;
  color:var(--c-main);text-transform:uppercase;margin-bottom:8px;
}
.section-head h2{
  font-size:clamp(21px,2.4vw,27px);margin:0 0 10px;color:var(--c-text);
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.section-head h2 i{color:var(--c-accent);font-size:20px}
.section-head p{margin:0;color:#3f6b7a;font-size:15.5px;max-width:780px}

/* 瀑布流卡片网格 */
.poster-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;width:100%;
}
.poster-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s;
  display:flex;flex-direction:column;
}
.poster-card:hover{transform:translateY(-5px);box-shadow:0 14px 30px rgba(8,51,68,.13);border-color:#9fe6f5}
.poster-thumb{position:relative;width:100%;aspect-ratio:2/3;overflow:hidden;background:#d8f5fb}
.poster-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.poster-card:hover .poster-thumb img{transform:scale(1.06)}
.poster-badge{
  position:absolute;top:9px;left:9px;
  font-size:11.5px;font-weight:700;color:#fff;letter-spacing:.4px;
  background:linear-gradient(120deg,var(--c-main),var(--c-accent));
  padding:3px 9px;border-radius:20px;
}
.poster-body{padding:12px 13px 15px;flex:1;display:flex;flex-direction:column;gap:6px}
.poster-body h3{
  font-size:15px;margin:0;font-family:var(--font-sans);font-weight:700;line-height:1.5;color:var(--c-text);
}
.poster-body p{font-size:12.8px;margin:0;color:#4b7a8a;line-height:1.7;flex:1}
.poster-meta{
  display:flex;align-items:center;justify-content:space-between;
  font-size:11.8px;color:#6d94a3;padding-top:8px;border-top:1px dashed var(--c-line);
}
.poster-meta span{display:flex;align-items:center;gap:5px}
.poster-meta i{color:var(--c-accent)}

/* 长文介绍 */
.article-box{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);
  padding:32px 34px;box-shadow:var(--shadow);
}
.article-box h2{font-size:24px;margin:0 0 16px;color:var(--c-text)}
.article-box h3{font-size:17.5px;margin:26px 0 10px;color:var(--c-main);font-family:var(--font-sans);font-weight:700}
.article-box p{margin:0 0 14px;font-size:15.5px;color:#204b5b}
.article-box strong{color:var(--c-main)}
.pullquote{
  margin:22px 0;padding:16px 20px;border-left:3px solid var(--c-accent);
  background:linear-gradient(90deg,rgba(14,165,233,.09),transparent 85%);
  border-radius:0 var(--radius) var(--radius) 0;
  font-size:15.5px;color:#134e5e;font-family:var(--font-serif);
}

/* 对比表格 */
.table-wrap{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
}
.table-wrap table{width:100%;border-collapse:collapse;margin:0;font-size:14.5px}
.table-wrap thead th{
  background:linear-gradient(120deg,rgba(8,145,178,.11),rgba(14,165,233,.11));
  color:var(--c-text);font-weight:700;text-align:left;
  padding:14px 16px;border-bottom:1px solid var(--c-line);white-space:nowrap;font-size:14px;
}
.table-wrap tbody td{padding:13px 16px;border-bottom:1px solid var(--c-line);color:#265363;vertical-align:top;line-height:1.75}
.table-wrap tbody tr:last-child td{border-bottom:none}
.table-wrap tbody tr:hover td{background:rgba(8,145,178,.045)}
.tick{color:#0d9488;font-weight:700}
.cross{color:#b45309;font-weight:700}

/* 步骤条（说明） */
.steps{display:flex;flex-direction:column;gap:0;margin-top:6px}
.step{
  display:grid;grid-template-columns:52px 1fr;gap:18px;position:relative;padding-bottom:26px;
}
.step:last-child{padding-bottom:0}
.step:not(:last-child)::before{
  content:"";position:absolute;left:25px;top:48px;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--c-accent),rgba(14,165,233,.12));
}
.step-num{
  width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:20px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--c-main),var(--c-accent));
  box-shadow:0 6px 16px rgba(8,145,178,.3);flex-shrink:0;
}
.step-body{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);
  padding:16px 20px;box-shadow:var(--shadow);
}
.step-body h4{margin:0 0 7px;font-size:16.5px;color:var(--c-text);font-family:var(--font-sans);font-weight:700}
.step-body p{margin:0;font-size:14.5px;color:#3f6b7a;line-height:1.8}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);transition:border-color .3s;
}
.faq-item[open]{border-color:#8fe0f0}
.faq-item summary{
  list-style:none;cursor:pointer;padding:16px 20px;
  font-size:15.5px;font-weight:600;color:var(--c-text);
  display:flex;align-items:center;gap:11px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"\f059";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--c-accent);font-size:15px;flex-shrink:0;
}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  margin-left:auto;color:var(--c-main);font-size:12px;transition:transform .3s;
}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-answer{padding:0 20px 18px 46px;font-size:14.8px;color:#3f6b7a;line-height:1.9}

/* 特色卡片网格 */
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.feature-card{
  position:relative;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow);overflow:hidden;
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.feature-card::before{
  content:"";position:absolute;top:-40px;right:-40px;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,165,233,.22),transparent 70%);
  filter:blur(14px);transition:.4s;
}
.feature-card:hover{transform:translateY(-4px);border-color:#9fe6f5;box-shadow:0 14px 28px rgba(8,51,68,.12)}
.feature-card:hover::before{transform:scale(1.35)}
.feature-icon{
  width:46px;height:46px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(8,145,178,.13),rgba(14,165,233,.13));
  color:var(--c-main);font-size:19px;margin-bottom:14px;position:relative;
}
.feature-card h4{font-size:16.5px;margin:0 0 8px;color:var(--c-text);font-family:var(--font-sans);font-weight:700}
.feature-card p{margin:0;font-size:14.2px;color:#3f6b7a;line-height:1.8;position:relative}

/* CTA */
.cta-box{
  position:relative;overflow:hidden;border-radius:var(--radius);
  padding:44px 40px;text-align:center;
  background:linear-gradient(135deg,#083344 0%,#0b5266 52%,#0891b2 100%);
  box-shadow:0 16px 40px rgba(8,51,68,.22);
}
.cta-box::before,.cta-box::after{
  content:"";position:absolute;border-radius:50%;filter:blur(50px);pointer-events:none;
}
.cta-box::before{width:280px;height:280px;top:-110px;left:-70px;background:rgba(14,165,233,.42)}
.cta-box::after{width:240px;height:240px;bottom:-120px;right:-60px;background:rgba(103,232,249,.3)}
.cta-box h2{position:relative;color:#fff;font-size:clamp(21px,2.6vw,28px);margin:0 0 12px}
.cta-box p{position:relative;color:rgba(255,255,255,.86);font-size:15.5px;max-width:640px;margin:0 auto 24px}
.cta-box .hero-btns{justify-content:center;position:relative}

/* 友情链接 */
.friend-links{
  margin-top:44px;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--radius);padding:24px 26px;box-shadow:var(--shadow);
}
.friend-links h3{
  font-size:16px;margin:0 0 12px;color:var(--c-main);
  display:flex;align-items:center;gap:9px;font-family:var(--font-sans);font-weight:700;
}
.friend-links .links-row{font-size:14px;color:#4b7a8a;line-height:2}

/* 页脚 */
.site-footer{
  margin-top:52px;border-top:1px solid var(--c-line);
  background:linear-gradient(180deg,rgba(255,255,255,.6),rgba(236,254,255,1));
  padding:38px 0 26px;
}
.footer-inner{max-width:1320px;margin:0 auto;padding:0 22px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;margin-bottom:26px}
.footer-brand{font-family:var(--font-serif);font-size:21px;font-weight:700;color:var(--c-text);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.footer-brand i{color:var(--c-main)}
.footer-desc{font-size:14px;color:#4b7a8a;line-height:1.9;margin:0;max-width:420px}
.footer-col h5{font-size:14.5px;margin:0 0 12px;color:var(--c-text);font-family:var(--font-sans);font-weight:700}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.footer-col a{font-size:14px;color:#4b7a8a}
.footer-col a:hover{color:var(--c-main)}
.footer-bottom{
  border-top:1px solid var(--c-line);padding-top:18px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#618b9a;
}

/* 响应式 */
@media (max-width:1100px){
  .poster-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .layout{grid-template-columns:1fr;gap:22px;padding-top:18px}
  .side-rail{position:static;flex-direction:row;flex-wrap:wrap}
  .rail-card{flex:1 1 260px}
}
@media (max-width:820px){
  .nav-toggle{display:inline-block}
  .main-nav{
    display:none;width:100%;flex-direction:column;align-items:stretch;
    margin:10px 0 0;gap:2px;
  }
  .main-nav.open{display:flex}
  .topbar-inner{flex-wrap:wrap}
  .main-nav a{padding:10px 12px}
  .main-nav a::after{display:none}
}
@media (max-width:680px){
  .poster-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}
  .article-box{padding:24px 20px}
  .hero-content{padding:28px 22px}
  .hero{min-height:330px}
  .feature-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .cta-box{padding:32px 22px}
  .step{grid-template-columns:42px 1fr;gap:13px}
  .step-num{width:42px;height:42px;font-size:16px}
  .step:not(:last-child)::before{left:20px;top:40px}
  .table-wrap{overflow-x:auto}
  .table-wrap table{min-width:560px}
  .poster-body h3{font-size:14px}
  .faq-answer{padding-left:20px}
}

/* --- 子页面追加 --- */
.about-lead {max-width:820px;font-size:1.02rem;line-height:1.95;color:var(--c-text);}
.fact-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-top:22px;}
.fact-item {background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow);}
.fact-num {font-size:1.7rem;font-weight:800;color:var(--c-main);line-height:1.2;letter-spacing:-.02em;}
.fact-label {font-size:.86rem;color:var(--c-text);opacity:.72;margin-top:6px;}
.value-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin-top:24px;}
.value-card {background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);padding:22px 22px 20px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;}
.value-card:hover {transform:translateY(-3px);box-shadow:0 8px 22px rgba(8,51,68,.10);}
.value-card h3 {font-size:1.02rem;font-weight:700;color:var(--c-main);margin:0 0 10px;display:flex;align-items:center;gap:8px;}
.value-card p {font-size:.92rem;line-height:1.85;margin:0;color:var(--c-text);opacity:.85;}
.timeline {list-style:none;padding:0;margin:24px 0 0;border-left:2px solid var(--c-line);}
.timeline li {position:relative;padding:0 0 24px 24px;}
.timeline li::before {content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px var(--c-bg);}
.timeline .tl-title {font-weight:700;color:var(--c-text);font-size:.98rem;}
.timeline .tl-desc {font-size:.9rem;line-height:1.8;color:var(--c-text);opacity:.8;margin-top:4px;}
.plain-list {margin:18px 0 0;padding-left:20px;}
.plain-list li {font-size:.94rem;line-height:1.95;color:var(--c-text);opacity:.88;}
.about-cta {margin-top:34px;background:linear-gradient(135deg,var(--c-soft),var(--c-card));border:1px solid var(--c-line);border-radius:var(--radius);padding:26px 26px;box-shadow:var(--shadow);display:flex;flex-wrap:wrap;align-items:center;gap:18px;justify-content:space-between;}
.about-cta p {margin:0;font-size:.95rem;line-height:1.8;color:var(--c-text);opacity:.88;max-width:560px;}
.about-lead {font-size:.96rem;}
.about-cta {padding:20px;}

/* --- 子页面追加 --- */
.dis-wrap {max-width:1180px;margin:0 auto;padding:0 18px;}
.dis-hero {padding:56px 0 34px;}
.dis-hero h1 {font-size:clamp(26px,4vw,40px);font-weight:800;line-height:1.25;margin:0 0 16px;letter-spacing:-.5px;}
.dis-hero p {max-width:760px;color:#2c6b7d;font-size:16px;line-height:1.85;margin:0;}
.dis-updated {display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-size:13px;color:var(--c-main);background:var(--c-soft);border:1px solid var(--c-line);border-radius:999px;padding:6px 14px;}
.dis-grid {display:grid;grid-template-columns:1fr 300px;gap:28px;align-items:start;padding-bottom:60px;}
.dis-main {min-width:0;}
.dis-card {background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 28px;margin-bottom:22px;}
.dis-card h2 {font-size:20px;font-weight:700;margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--c-line);display:flex;align-items:center;gap:10px;line-height:1.4;}
.dis-card h2 i {color:var(--c-main);font-size:16px;}
.dis-card h2 span {color:var(--c-main);}
.dis-card p {font-size:15px;line-height:1.9;color:#1d5566;margin:0 0 12px;}
.dis-card p:last-child {margin-bottom:0;}
.dis-card ul {margin:0;padding-left:0;list-style:none;}
.dis-card ul li {position:relative;padding-left:22px;font-size:15px;line-height:1.9;color:#1d5566;margin-bottom:10px;}
.dis-card ul li:last-child {margin-bottom:0;}
.dis-card ul li::before {content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:2px;font-size:12px;color:var(--c-accent);}
.dis-note {background:var(--c-soft);border:1px dashed var(--c-line);border-radius:var(--radius);padding:18px 20px;font-size:14px;line-height:1.85;color:#2c6b7d;}
.dis-note strong {color:var(--c-main);}
.dis-side {position:sticky;top:20px;}
.side-box {background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:20px;}
.side-box h3 {font-size:15px;font-weight:700;margin:0 0 14px;display:flex;align-items:center;gap:8px;}
.side-box h3 i {color:var(--c-main);}
.side-box ul {list-style:none;margin:0;padding:0;}
.side-box ul li {margin-bottom:10px;}
.side-box ul li:last-child {margin-bottom:0;}
.side-box ul li a {font-size:14px;color:#1d5566;text-decoration:none;display:flex;align-items:center;gap:8px;transition:.2s;}
.side-box ul li a:hover {color:var(--c-main);}
.side-box ul li a i {font-size:11px;color:var(--c-accent);}
.side-box .side-tip {font-size:13px;line-height:1.8;color:#2c6b7d;margin:0;}
.dis-grid {grid-template-columns:1fr;}
.dis-side {position:static;}
.dis-card {padding:20px 18px;}

/* --- 子页面追加 --- */
.guide-wrap {max-width:1180px;margin:0 auto;padding:0 16px;}
.guide-lead {background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 24px;margin-bottom:22px;}
.guide-lead h1 {font-size:1.7rem;line-height:1.4;margin:0 0 12px;font-weight:800;}
.guide-lead p {margin:0 0 10px;color:#155e75;line-height:1.85;font-size:.98rem;}
.guide-lead p:last-child {margin-bottom:0;}
.step-list {display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;}
.step-card {background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 18px;position:relative;}
.step-card h3 {font-size:1.05rem;font-weight:700;margin:0 0 8px;line-height:1.5;}
.step-card p {margin:0;font-size:.92rem;line-height:1.8;color:#155e75;}
.compare-table {width:100%;border-collapse:collapse;background:var(--c-card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);font-size:.93rem;}
.compare-table th,.compare-table td {padding:12px 14px;border-bottom:1px solid var(--c-line);text-align:left;vertical-align:top;line-height:1.7;}
.compare-table th {background:var(--c-soft);color:var(--c-text);font-weight:700;font-size:.9rem;}
.compare-table tr:last-child td {border-bottom:none;}
.compare-table td:first-child {font-weight:600;color:var(--c-main);white-space:nowrap;}
.faq-item h3 {font-size:1rem;font-weight:700;margin:0 0 8px;color:var(--c-text);display:flex;gap:8px;align-items:flex-start;}
.faq-item h3 i {color:var(--c-main);margin-top:3px;font-size:.9rem;}
.faq-item p {margin:0;font-size:.93rem;line-height:1.85;color:#155e75;}
.feature-card i {color:var(--c-accent);font-size:1.3rem;margin-bottom:10px;display:block;}
.feature-card h3 {font-size:1rem;font-weight:700;margin:0 0 8px;}
.tips-box {background:var(--c-soft);border:1px dashed var(--c-main);border-radius:var(--radius);padding:18px 20px;margin-top:20px;}
.tips-box h3 {margin:0 0 10px;font-size:1rem;font-weight:700;color:var(--c-main);}
.tips-box ul {margin:0;padding-left:20px;}
.tips-box li {font-size:.93rem;line-height:1.9;color:#155e75;}
.guide-cta {background:linear-gradient(135deg,var(--c-main),var(--c-accent));border-radius:var(--radius);padding:28px 24px;color:#fff;text-align:center;margin-top:26px;}
.guide-cta h2 {margin:0 0 10px;font-size:1.25rem;font-weight:800;}
.guide-cta p {margin:0 0 18px;font-size:.95rem;opacity:.95;line-height:1.8;}
.guide-cta a {display:inline-block;background:#fff;color:var(--c-main);font-weight:700;padding:10px 26px;border-radius:999px;text-decoration:none;font-size:.95rem;transition:.2s;}
.guide-cta a:hover {transform:translateY(-2px);box-shadow:0 6px 18px rgba(0,0,0,.18);}
.toc {background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 20px;margin-bottom:22px;}
.toc strong {display:block;font-size:.88rem;color:var(--c-main);margin-bottom:8px;letter-spacing:.5px;}
.toc a {display:inline-block;margin:4px 12px 4px 0;font-size:.9rem;color:#155e75;text-decoration:none;border-bottom:1px dashed var(--c-line);}
.toc a:hover {color:var(--c-main);border-bottom-color:var(--c-main);}
.guide-lead {padding:20px 16px;}
.guide-lead h1 {font-size:1.35rem;}
.compare-table th,.compare-table td {padding:10px 10px;font-size:.86rem;}

/* --- 子页面追加 --- */
.contact-hero {background:linear-gradient(135deg,var(--c-main),var(--c-accent));color:#fff;border-radius:var(--radius);padding:44px 32px;position:relative;overflow:hidden;box-shadow:var(--shadow);}
.contact-hero::after {content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.12);}
.contact-hero h1 {font-size:1.9rem;font-weight:800;margin:0 0 12px;line-height:1.35;}
.contact-hero p {margin:0;opacity:.92;max-width:640px;line-height:1.8;font-size:.98rem;}
.contact-hero .hero-kicker {display:inline-block;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.35);padding:4px 12px;border-radius:999px;font-size:.8rem;letter-spacing:.5px;margin-bottom:16px;}
.fb-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;}
.fb-card {background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);transition:.25s;height:100%;}
.fb-card:hover {transform:translateY(-3px);border-color:var(--c-accent);}
.fb-card .fb-ico {width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:rgba(8,145,178,.1);color:var(--c-main);font-size:1.1rem;margin-bottom:14px;}
.fb-card h3 {font-size:1.02rem;font-weight:700;color:var(--c-text);margin:0 0 8px;}
.fb-card p {font-size:.9rem;color:#3b6473;line-height:1.75;margin:0 0 10px;}
.fb-card .fb-way {font-size:.86rem;color:var(--c-main);font-weight:600;background:var(--c-soft);border:1px dashed var(--c-line);border-radius:6px;padding:8px 10px;word-break:break-all;}
.mail-box {background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.mail-box h3 {font-size:1.05rem;font-weight:700;margin:0 0 16px;color:var(--c-text);}
.form-row {margin-bottom:16px;}
.form-row label {display:block;font-size:.86rem;font-weight:600;color:var(--c-text);margin-bottom:6px;}
.form-row input,.form-row select,.form-row textarea {width:100%;background:var(--c-soft);border:1px solid var(--c-line);border-radius:6px;padding:11px 13px;font-size:.92rem;color:var(--c-text);font-family:var(--font-sans);outline:none;transition:.2s;}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus {border-color:var(--c-accent);background:#fff;box-shadow:0 0 0 3px rgba(14,165,233,.12);}
.form-row textarea {resize:vertical;min-height:130px;}
.form-row input::placeholder,.form-row textarea::placeholder {color:#8fb3bf;}
.btn-submit {display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--c-main),var(--c-accent));color:#fff;border:none;border-radius:999px;padding:12px 30px;font-size:.95rem;font-weight:700;cursor:pointer;box-shadow:0 6px 18px rgba(8,145,178,.28);transition:.25s;}
.btn-submit:hover {transform:translateY(-2px);box-shadow:0 10px 24px rgba(8,145,178,.36);}
.form-hint {font-size:.8rem;color:#6b8f9b;margin-top:10px;}
.qa-item {background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);padding:18px 20px;margin-bottom:12px;box-shadow:var(--shadow);}
.qa-item h3 {font-size:.98rem;font-weight:700;color:var(--c-text);margin:0 0 8px;display:flex;gap:8px;align-items:flex-start;}
.qa-item h3 i {color:var(--c-main);font-size:.9rem;margin-top:3px;}
.qa-item p {font-size:.9rem;line-height:1.8;color:#3b6473;margin:0;}
.time-line {list-style:none;padding:0;margin:0;}
.time-line li {position:relative;padding:0 0 20px 26px;border-left:2px solid var(--c-line);margin-left:6px;}
.time-line li:last-child {border-left-color:transparent;padding-bottom:0;}
.time-line li::before {content:"";position:absolute;left:-7px;top:2px;width:12px;height:12px;border-radius:50%;background:var(--c-main);box-shadow:0 0 0 3px rgba(8,145,178,.15);}
.time-line strong {display:block;font-size:.94rem;color:var(--c-text);margin-bottom:4px;}
.time-line span {font-size:.87rem;color:#3b6473;line-height:1.7;}
.warn-box {background:#fff7ed;border:1px solid #fed7aa;border-left:4px solid #f59e0b;border-radius:var(--radius);padding:16px 18px;font-size:.88rem;line-height:1.8;color:#7c4a03;}
.warn-box strong {color:#b45309;}
.side-rail .rail-card {margin-bottom:18px;}
.side-rail .rail-card h3 {font-size:.98rem;font-weight:700;margin:0 0 12px;color:var(--c-text);}
.contact-hero {padding:32px 22px;}
.contact-hero h1 {font-size:1.45rem;}
.mail-box {padding:20px;}