/* ============================================================
   赛司漫科技 · 官网样式表
   基线：暖白底 / 近黑字 / 藏青强调 / 1px 细线分隔 / 编辑感排版
   约束：零外部依赖（无 CDN 字体、无第三方脚本）
   ============================================================ */

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p,figure{margin:0}
table{border-collapse:collapse}

:root{
  --bg:#FAF9F6;
  --bg-2:#F4F2EC;
  --surface:#FFFFFF;
  --ink:#111318;
  --ink-2:#565C67;
  --ink-3:#8B919B;
  --line:#E5E1D9;
  --line-2:#CEC9BD;
  --accent:#16324F;
  --accent-2:#2E6B99;
  --accent-soft:#EEF3F8;

  --c-comic:#C2622F;
  --c-geo:#2C7A3F;
  --c-shop:#2F6FA8;
  --c-media:#A33B62;
  --c-lead:#96700F;
  --c-care:#17686E;
  --c-teles:#5A4A93;
  --c-assist:#3E5870;
  --c-comp:#AB5080;

  --nav-h:64px;
  --maxw:1140px;
  --r:6px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:"SF Mono","JetBrains Mono",Consolas,"Courier New",monospace;
}

body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 导航 ---------- */
.nav{position:sticky;top:0;z-index:60;background:rgba(250,249,246,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav__inner{height:var(--nav-h);max-width:var(--maxw);margin:0 auto;padding:0 32px;display:flex;align-items:center;justify-content:space-between;gap:24px;position:relative}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.mark{width:20px;height:20px;border-radius:4px;background:var(--accent);display:block;flex:0 0 auto}
.brand__name{font-size:16px;font-weight:600;letter-spacing:-.01em}
.nav__links{display:flex;align-items:center;gap:30px}
.nav__links a{font-size:14.5px;color:var(--ink-2);transition:color .16s ease}
.nav__links a:hover,.nav__links a[aria-current]{color:var(--ink)}
.nav__cta{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--r);background:var(--accent);color:#fff !important;font-size:14px;transition:background .16s ease}
.nav__cta:hover{background:#1D4370}
.nav__toggle{display:none;width:38px;height:38px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r);color:var(--ink)}
.nav__toggle svg{width:17px;height:17px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r);font-size:15px;font-weight:500;border:1px solid transparent;transition:background .16s ease,border-color .16s ease,color .16s ease;white-space:nowrap}
.btn--primary{background:var(--accent);color:#fff}
.btn--primary:hover{background:#1D4370}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn--ghost:hover{border-color:var(--ink);background:#fff}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn svg{width:15px;height:15px}

/* ---------- 通用排版 ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:500;letter-spacing:.15em;color:var(--ink-3);text-transform:uppercase}
.eyebrow::before{content:"";width:20px;height:1px;background:var(--line-2);flex:0 0 auto}
h1{font-size:clamp(34px,4.3vw,52px);line-height:1.18;font-weight:600;letter-spacing:-.022em}
h2.h-sec{font-size:clamp(25px,2.9vw,35px);line-height:1.3;font-weight:600;letter-spacing:-.016em;margin-top:16px}
h3{font-size:17px;font-weight:600;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px;border-radius:2px}
.lead{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:58ch}
.sub-sec{font-size:16.5px;line-height:1.82;color:var(--ink-2);margin-top:18px;max-width:64ch}
.mono{font-family:var(--mono);font-size:.92em}
.hint{font-size:13px;color:var(--ink-3)}

/* ---------- 板块 ---------- */
.section{padding:96px 0;border-bottom:1px solid var(--line)}
.section--tight{padding:72px 0}
.section--alt{background:var(--bg-2)}
.sec-head{margin-bottom:46px;max-width:66ch}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head--center .sub-sec{margin-left:auto;margin-right:auto}
.sec-head--split{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;max-width:none}
.sec-num{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--ink-3)}

/* ---------- Hero ---------- */
.hero{padding:86px 0 80px;border-bottom:1px solid var(--line)}
.hero__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.hero h1{margin:20px 0 0}
.hero .lead{margin-top:22px}
.hero__cta{display:flex;gap:12px;margin-top:34px;flex-wrap:wrap}
.hero__meta{display:flex;gap:22px;margin-top:30px;flex-wrap:wrap}
.hero__meta span{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:var(--ink-3)}
.hero__meta svg{width:14px;height:14px;flex:0 0 auto;color:var(--accent-2)}

/* 全链示意卡（替代装饰图形） */
.chain{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:8px}
.chain__head{padding:16px 18px 14px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}
.chain__head b{font-size:14px;font-weight:600}
.chain__head span{font-family:var(--mono);font-size:11.5px;color:var(--ink-3)}
.chain__row{display:flex;align-items:center;gap:14px;padding:16px 18px;border-bottom:1px solid var(--line)}
.chain__row:last-of-type{border-bottom:0}
.chain__dot{width:26px;height:26px;border-radius:5px;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;color:#fff;flex:0 0 auto}
.chain__t{font-size:14.5px;font-weight:600}
.chain__d{font-size:13px;color:var(--ink-3);margin-top:2px}
.chain__foot{padding:14px 18px;border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-3);background:var(--bg-2);border-radius:0 0 5px 5px}

/* ---------- 四栏条 ---------- */
.strip{display:grid;grid-template-columns:repeat(4,1fr);background:var(--bg-2);border-bottom:1px solid var(--line)}
.strip__item{padding:36px 28px;border-right:1px solid var(--line)}
.strip__item:last-child{border-right:0}
.strip__t{font-size:15.5px;font-weight:600;margin-bottom:8px}
.strip__d{font-size:13.5px;line-height:1.72;color:var(--ink-2)}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:20px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.grid--gap-lg{gap:26px}

/* ---------- 卡片 ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:border-color .18s ease,transform .18s ease}
.card:hover{border-color:var(--line-2);transform:translateY(-2px)}
.card p{font-size:14.5px;line-height:1.78;color:var(--ink-2);margin-top:10px}
.card__num{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;color:var(--ink-3)}
.card__ico{width:30px;height:30px;color:var(--accent-2);margin-bottom:16px}
.card__ico svg{width:100%;height:100%}
.card__list{display:flex;flex-direction:column;gap:9px;margin-top:16px}
.card__list li{position:relative;padding-left:16px;font-size:14px;line-height:1.7;color:var(--ink-2)}
.card__list li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border:1px solid var(--line-2);border-radius:50%}

/* ---------- 产品卡 ---------- */
.pcard{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px 26px 26px 30px;overflow:hidden;transition:border-color .18s ease,transform .18s ease}
.pcard:hover{border-color:var(--line-2);transform:translateY(-2px)}
.pcard::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--acc,var(--accent))}
.pcard__head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.pcard__mark{width:36px;height:36px;border-radius:5px;background:var(--acc,var(--accent));color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;flex:0 0 auto}
.pcard__name{font-size:16.5px;font-weight:600;letter-spacing:-.01em}
.pcard__en{font-size:11.5px;letter-spacing:.1em;color:var(--ink-3);text-transform:uppercase;margin-top:3px}
.pcard p{font-size:14.5px;line-height:1.78;color:var(--ink-2)}
.pcard--flag{border-color:var(--line-2);background:linear-gradient(180deg,#FFFDF8,#FFFFFF)}
.pcard__badge{display:inline-block;font-size:11px;padding:2px 8px;border-radius:20px;background:var(--accent-soft);color:var(--accent);margin-left:8px;vertical-align:1px;font-weight:500}

/* ---------- 表格 ---------- */
.spec-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.spec{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--surface)}
.spec th,.spec td{padding:14px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{background:var(--bg-2);font-weight:500;color:var(--ink-2);font-size:13px;width:128px;white-space:nowrap}
.spec td{color:var(--ink-2)}
.spec tr:last-child th,.spec tr:last-child td{border-bottom:0}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.step{padding:30px 26px;border-right:1px solid var(--line)}
.step:first-child{padding-left:0}
.step:last-child{border-right:0;padding-right:0}
.step__n{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--ink-3)}
.step h4{font-size:16px;font-weight:600;margin:14px 0 10px}
.step p{font-size:14px;line-height:1.78;color:var(--ink-2)}

/* ---------- 左右分栏 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.split--wide{grid-template-columns:1.15fr .85fr}

/* ---------- 引用 ---------- */
.quote{border-left:2px solid var(--accent);padding:4px 0 4px 20px;margin-top:28px;font-size:16px;line-height:1.8;color:var(--ink);font-weight:500}

/* ---------- 团队行 ---------- */
.team{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);overflow:hidden}
.team__row{display:flex;align-items:center;gap:14px;padding:14px 18px;border-bottom:1px solid var(--line)}
.team__row:last-child{border-bottom:0}
.team__no{font-family:var(--mono);font-size:11.5px;color:var(--ink-3);width:20px;flex:0 0 auto}
.team__row b{font-size:14.5px;font-weight:600;width:88px;flex:0 0 auto}
.team__row span{font-size:13.5px;color:var(--ink-3)}

/* ---------- CTA ---------- */
.cta{background:var(--accent);color:#fff;border-radius:var(--r);padding:62px 48px;text-align:center}
.cta h2{font-size:clamp(23px,2.5vw,31px);font-weight:600;letter-spacing:-.016em;line-height:1.3}
.cta p{color:rgba(255,255,255,.74);margin-top:16px;font-size:16px;max-width:56ch;margin-left:auto;margin-right:auto}
.cta__btns{display:flex;gap:12px;justify-content:center;margin-top:32px;flex-wrap:wrap}
.cta .btn--primary{background:#fff;color:var(--accent)}
.cta .btn--primary:hover{background:#EDF2F7}
.cta .btn--ghost{color:#fff;border-color:rgba(255,255,255,.34)}
.cta .btn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}

/* ---------- 内页头 ---------- */
.pagehead{padding:66px 0 50px;border-bottom:1px solid var(--line);background:var(--bg-2)}
.pagehead h1{font-size:clamp(29px,3.4vw,41px)}
.pagehead p{color:var(--ink-2);max-width:64ch;margin-top:18px;font-size:16.5px}
.crumb{font-size:13px;color:var(--ink-3);margin-bottom:20px}
.crumb a:hover{color:var(--ink)}
.crumb span{margin:0 7px;color:var(--line-2)}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:rgba(255,255,255,.6);padding:66px 0 30px;font-size:14px}
.footer__grid{display:grid;grid-template-columns:1.9fr 1fr 1fr 1fr;gap:44px;padding-bottom:46px;border-bottom:1px solid rgba(255,255,255,.13)}
.footer h5{font-size:11.5px;letter-spacing:.15em;color:rgba(255,255,255,.42);font-weight:500;margin-bottom:18px;text-transform:uppercase}
.footer li{margin-bottom:11px;font-size:14px}
.footer a{transition:color .16s ease}
.footer a:hover{color:#fff}
.footer__about{max-width:36ch}
.footer__about .brand{margin-bottom:16px}
.footer__about .mark{background:#fff}
.footer__about .brand__name{color:#fff}
.footer__about p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.5)}
.footer__bottom{display:flex;justify-content:space-between;gap:20px;padding-top:26px;font-size:13px;color:rgba(255,255,255,.4);flex-wrap:wrap;align-items:center}
.footer__legal{display:flex;gap:20px;flex-wrap:wrap;align-items:center}
.footer__legal a{color:rgba(255,255,255,.6)}
.footer__legal a:hover{color:#fff}
.footer__legal img{height:15px;display:inline-block;vertical-align:-2px;margin-right:6px}

/* ---------- 滚动进场 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s cubic-bezier(.22,.61,.36,1),transform .6s cubic-bezier(.22,.61,.36,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* ---------- 响应式 ---------- */
@media (max-width:1000px){
  .hero__grid{grid-template-columns:1fr;gap:46px}
  .split,.split--wide{grid-template-columns:1fr;gap:34px}
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .grid--3{grid-template-columns:repeat(2,1fr)}
  .strip{grid-template-columns:repeat(2,1fr)}
  .strip__item:nth-child(2){border-right:0}
  .strip__item:nth-child(1),.strip__item:nth-child(2){border-bottom:1px solid var(--line)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:nth-child(2){border-right:0}
  .step:nth-child(1),.step:nth-child(2){border-bottom:1px solid var(--line)}
  .footer__grid{grid-template-columns:1fr 1fr;gap:34px}
  .sec-head--split{flex-direction:column;align-items:flex-start;gap:18px}
}
@media (max-width:760px){
  .wrap,.nav__inner{padding:0 20px}
  .section{padding:68px 0}
  .section--tight{padding:54px 0}
  .hero{padding:60px 0 56px}
  .pagehead{padding:48px 0 40px}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .card,.pcard{padding:22px}
  .pcard{padding-left:26px}
  .cta{padding:46px 24px}
  .nav__toggle{display:flex}
  .nav__links{display:none;position:absolute;top:var(--nav-h);left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--bg);border-bottom:1px solid var(--line);padding:8px 20px 16px}
  .nav__links.open{display:flex}
  .nav__links a{padding:12px 0;border-bottom:1px solid var(--line);font-size:15.5px}
  .nav__links .nav__cta{border-bottom:0;margin-top:12px;justify-content:center}
  h1{font-size:clamp(27px,7.6vw,34px)}
  h2.h-sec{font-size:clamp(22px,6.4vw,26px)}
  .hero__meta{gap:14px}
  .spec th{width:104px}
  .team__row b{width:74px}
}