/* ============================================================
   TSM Travel · 主题样式
   Tunnel / Session Multiplexer / travel
   深色隧道视觉：深蓝黑底 + 青绿→电蓝渐变光
   ============================================================ */

:root{
  --bg:#05080f;
  --bg-2:#080d18;
  --panel:#0b1322;
  --panel-2:#0f1a2d;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --ink:#e8eff9;
  --ink-2:#b9c7db;
  --ink-mute:#7f90a8;
  --teal:#35e0c1;
  --blue:#4d7dff;
  --amber:#ffb454;
  --grad:linear-gradient(115deg,#35e0c1 0%,#4d7dff 100%);
  --grad-soft:linear-gradient(115deg,rgba(53,224,193,.16),rgba(77,125,255,.16));
  --sans:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"JetBrains Mono",Menlo,Consolas,"Courier New",monospace;
  --serif:Georgia,"Songti SC","SimSun",serif;
  --r:16px;
  --r-lg:22px;
  --shadow:0 24px 60px -30px rgba(0,0,0,.85);
  --shadow-teal:0 20px 60px -28px rgba(53,224,193,.5);
  --container:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.2;letter-spacing:-.02em;font-weight:800}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:104px 0}
.section--tight{padding:72px 0}

/* ---------- 通用文字 ---------- */
.mono{font-family:var(--mono)}
.hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800;font-style:normal}
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.28em;text-transform:uppercase;
  color:var(--teal);margin-bottom:16px;
}
.kicker::before{content:"";width:26px;height:1px;background:var(--grad);display:block}
.sec-head{max-width:760px;margin-bottom:56px}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head--center .kicker::before{display:none}
.sec-title{font-size:clamp(28px,3.6vw,44px)}
.sec-desc{margin-top:18px;color:var(--ink-2);font-size:17px}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,8,15,.82);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.site-header > .container{display:flex;align-items:center;justify-content:space-between;height:74px;gap:20px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid rgba(53,224,193,.34);
  color:var(--teal);
}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-family:var(--mono);font-size:17px;font-weight:700;letter-spacing:-.01em}
.brand-en{font-family:var(--mono);font-size:9.5px;letter-spacing:.2em;color:var(--ink-mute);text-transform:uppercase}
.nav{display:flex;align-items:center;gap:6px}
.nav-link{
  padding:9px 14px;border-radius:10px;font-size:14.5px;color:var(--ink-2);
  transition:color .2s,background .2s;white-space:nowrap;
}
.nav-link:hover{color:var(--ink);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--teal)}
.nav-cta{
  margin-left:10px;padding:10px 18px;border-radius:11px;
  font-size:14px;font-weight:700;color:#04121a;
  background:var(--grad);box-shadow:var(--shadow-teal);
  transition:transform .2s,filter .2s;white-space:nowrap;
}
.nav-cta:hover{transform:translateY(-1px);filter:brightness(1.07)}

/* 汉堡按钮（桌面隐藏） */
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;padding:0;cursor:pointer;
  background:rgba(255,255,255,.04);color:var(--ink);
  border:1px solid var(--line-2);border-radius:12px;
}
.nav-toggle .icon-close{display:none}
.nav-toggle.open .icon-open{display:none}
.nav-toggle.open .icon-close{display:block}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 26px;border-radius:13px;font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;transition:transform .2s,filter .2s,background .2s,border-color .2s;
}
.btn-primary{background:var(--grad);color:#04121a;box-shadow:var(--shadow-teal)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.07)}
.btn-ghost{background:rgba(255,255,255,.03);color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(53,224,193,.5);color:var(--teal)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:96px 0 88px}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url("images/hero-tunnel.jpg") center 40%/cover no-repeat;
  opacity:.42;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 12% 0%,rgba(5,8,15,.95) 0%,rgba(5,8,15,.72) 45%,rgba(5,8,15,.96) 100%),
    linear-gradient(180deg,rgba(5,8,15,.5),var(--bg) 88%);
}
.hero > .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:60px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 15px;border-radius:999px;margin-bottom:26px;
  background:rgba(53,224,193,.08);border:1px solid rgba(53,224,193,.28);
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--teal);
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(53,224,193,.18)}
.hero h1{font-size:clamp(34px,5vw,62px);line-height:1.1;letter-spacing:-.035em}
.hero-sub{margin-top:24px;font-size:18px;color:var(--ink-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.hero-meta li{font-family:var(--mono);font-size:12.5px;color:var(--ink-mute);display:flex;align-items:center;gap:8px}
.hero-meta li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--blue);opacity:.85}

/* 终端窗口 */
.term{
  background:linear-gradient(180deg,rgba(11,19,34,.97),rgba(8,13,24,.97));
  border:1px solid var(--line-2);border-radius:var(--r-lg);
  box-shadow:var(--shadow);overflow:hidden;backdrop-filter:blur(6px);
}
.term-bar{
  display:flex;align-items:center;gap:8px;padding:13px 18px;
  background:rgba(255,255,255,.035);border-bottom:1px solid var(--line);
}
.term-bar i{width:11px;height:11px;border-radius:50%;background:#2b3a52;display:block}
.term-bar i:nth-child(1){background:#ff5f57}
.term-bar i:nth-child(2){background:#febc2e}
.term-bar i:nth-child(3){background:#28c840}
.term-title{margin-left:10px;font-family:var(--mono);font-size:12px;color:var(--ink-mute)}
.term-body{padding:22px 22px 26px;font-family:var(--mono);font-size:13.2px;line-height:1.95}
.term-body .l{display:block;color:var(--ink-2);white-space:pre-wrap;word-break:break-word}
.term-body .c{color:var(--teal)}
.term-body .cmt{color:var(--ink-mute)}
.term-body .ok{color:var(--teal)}
.term-body .hint{color:var(--amber)}
.term-body .pool{color:var(--blue)}

/* ---------- 数据条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.stats li{background:var(--bg-2);padding:30px 26px}
.stats .num{font-family:var(--mono);font-size:36px;font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.stats .lb{margin-top:10px;font-size:13.5px;color:var(--ink-mute);line-height:1.5}

/* ---------- 特性卡 ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  background:linear-gradient(180deg,var(--panel),rgba(8,13,24,.6));
  border:1px solid var(--line);border-radius:var(--r);padding:30px 26px;
  transition:transform .28s,border-color .28s,background .28s;position:relative;overflow:hidden;
}
.card::after{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:var(--grad);opacity:0;transition:opacity .28s;
}
.card:hover{transform:translateY(-4px);border-color:rgba(53,224,193,.32)}
.card:hover::after{opacity:1}
.card .ico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid rgba(53,224,193,.26);
  color:var(--teal);margin-bottom:20px;
}
.card .ico svg{width:22px;height:22px}
.card h3{font-size:18.5px;margin-bottom:10px}
.card p{color:var(--ink-2);font-size:14.6px}
.card .idx{position:absolute;right:22px;top:20px;font-family:var(--mono);font-size:12px;color:var(--ink-mute);opacity:.7}

/* ---------- 对比表 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.compare-col{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--panel)}
.compare-col.hi{border-color:rgba(53,224,193,.4);box-shadow:var(--shadow-teal)}
.compare-h{padding:18px 24px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.compare-h b{font-family:var(--mono);font-size:15px;letter-spacing:.02em}
.compare-h span{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--ink-mute);text-transform:uppercase}
.compare-col.hi .compare-h b{color:var(--teal)}
.compare-row{padding:17px 24px;border-bottom:1px solid var(--line);display:flex;gap:14px;align-items:flex-start;font-size:14.6px}
.compare-row:last-child{border-bottom:0}
.compare-row .k{flex:0 0 92px;font-family:var(--mono);font-size:12.5px;color:var(--ink-mute);padding-top:3px}
.compare-row .v{color:var(--ink-2)}
.compare-col.hi .v{color:var(--ink)}

/* ---------- 架构 ---------- */
.arch{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}
.arch-figure{
  display:flex;flex-direction:column;
  border:1px solid var(--line);border-radius:var(--r-lg);background:
    radial-gradient(90% 70% at 50% 0%,rgba(53,224,193,.07),transparent 70%),var(--bg-2);
  padding:26px 20px 20px;
}
.arch-canvas{flex:1 1 auto;display:flex;align-items:center;justify-content:center;min-height:0}
.arch-figure svg{width:100%;height:auto;display:block}
.arch-cap{margin-top:8px;text-align:center;font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;color:var(--ink-mute);text-transform:uppercase}

/* 左栏底部：IPC 边界速览（把左栏垫高到与右栏齐平） */
.arch-ipc{margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.arch-ipc-head{display:flex;align-items:center;gap:8px;margin-bottom:14px;font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--ink-mute);text-transform:uppercase}
.arch-ipc-head::before{content:"";flex:0 0 auto;width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 10px var(--teal)}
.arch-ipc-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.arch-ipc-cell{padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.02)}
.arch-ipc-cell .k{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--ink-mute);text-transform:uppercase}
.arch-ipc-cell .v{display:block;margin-top:6px;font-family:var(--mono);font-size:12.6px;color:var(--teal);word-break:break-word}
.arch-ipc-cell .d{display:block;margin-top:4px;font-size:12.6px;line-height:1.55;color:var(--ink-2)}
.arch-ipc-foot{margin-top:14px;font-size:13.2px;line-height:1.65;color:var(--ink-mute)}
.arch-ipc-foot b{color:var(--ink)}
.proc{border:1px solid var(--line);border-radius:var(--r);background:var(--panel);padding:24px;margin-bottom:18px}
.proc-top{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.proc-tag{font-family:var(--mono);font-size:11px;letter-spacing:.14em;padding:4px 10px;border-radius:999px;background:rgba(53,224,193,.12);color:var(--teal);border:1px solid rgba(53,224,193,.26)}
.proc-tag.b{background:rgba(77,125,255,.12);color:#9db9ff;border-color:rgba(77,125,255,.3)}
.proc h3{font-size:17px}
.proc ul{display:grid;gap:9px}
.proc li{display:flex;gap:10px;font-size:14.4px;color:var(--ink-2)}
.proc li::before{content:"›";color:var(--teal);font-family:var(--mono);flex:0 0 auto}
.proc li code{font-family:var(--mono);font-size:12.8px;color:var(--ink);background:rgba(255,255,255,.05);padding:1px 7px;border-radius:6px}
.redline{
  margin-top:4px;padding:16px 20px;border-radius:14px;font-size:14px;color:var(--ink-2);
  background:rgba(255,180,84,.07);border:1px solid rgba(255,180,84,.26);
}
.redline b{color:var(--amber)}

/* ---------- 场景 ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--panel)}
.scene + .scene{margin-top:24px}
.scene-media{position:relative;min-height:340px;background:#070c16}
.scene-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.85}
.scene-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 40%,rgba(11,19,34,.96) 100%)}
.scene-body{padding:44px 42px}
.scene-no{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--teal);margin-bottom:14px}
.scene-body h3{font-size:clamp(21px,2.3vw,27px);margin-bottom:16px}
.scene-body p{color:var(--ink-2);font-size:15.4px}
.scene-body p + p{margin-top:14px}
.scene-points{margin-top:26px;display:grid;gap:11px}
.scene-points li{display:flex;gap:11px;font-size:14.2px;color:var(--ink-2)}
.scene-points li::before{content:"✓";color:var(--teal);font-family:var(--mono);font-weight:700}
.scene.rev .scene-media{order:2}
.scene.rev .scene-media::after{background:linear-gradient(270deg,transparent 40%,rgba(11,19,34,.96) 100%)}

/* ---------- 安全清单 ---------- */
.sec-list{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.sec-list li{background:var(--bg-2);padding:26px 26px;display:flex;gap:16px}
.sec-list .n{font-family:var(--mono);font-size:12px;color:var(--teal);flex:0 0 34px;padding-top:3px}
.sec-list h4{font-size:15.6px;margin-bottom:7px}
.sec-list p{font-size:14px;color:var(--ink-mute)}

/* ---------- 代码面板 / 快速开始 ---------- */
.code{
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#070c17;
}
.code-h{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 20px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.03);
}
.code-h b{font-size:14.6px}
.code-h span{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--ink-mute);text-transform:uppercase}
.code pre{margin:0;padding:20px 20px 24px;overflow-x:auto;font-family:var(--mono);font-size:12.9px;line-height:2;color:var(--ink-2)}
.code .c{color:var(--teal)}
.code .cmt{color:var(--ink-mute)}
.code .p{color:var(--amber)}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ncard{
  display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;background:var(--panel);transition:transform .28s,border-color .28s;
}
.ncard:hover{transform:translateY(-4px);border-color:rgba(53,224,193,.32)}
.ncard-media{aspect-ratio:16/9;background:linear-gradient(135deg,rgba(53,224,193,.14),rgba(77,125,255,.14));overflow:hidden;position:relative}
.ncard-media img{width:100%;height:100%;object-fit:cover;opacity:.9}
.ncard-media .ph{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--ink-mute)}
.ncard-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}
.nmeta{display:flex;align-items:center;gap:12px;font-family:var(--mono);font-size:11.5px;color:var(--ink-mute);margin-bottom:12px}
.ntag{padding:3px 10px;border-radius:999px;background:rgba(53,224,193,.1);border:1px solid rgba(53,224,193,.24);color:var(--teal)}
.ncard h3{font-size:17px;line-height:1.45;margin-bottom:10px}
.ncard h3 a:hover{color:var(--teal)}
.ncard .nsum{font-size:13.8px;color:var(--ink-mute);flex:1}
.nmore{margin-top:18px;font-family:var(--mono);font-size:12.5px;color:var(--teal)}
.ncard:hover .nmore{text-decoration:underline}
.nempty{grid-column:1/-1;text-align:center;color:var(--ink-mute);padding:46px 0}

/* ---------- 新闻列表页 ---------- */
.page-hero{padding:80px 0 46px;border-bottom:1px solid var(--line);background:radial-gradient(70% 100% at 20% 0%,rgba(53,224,193,.08),transparent 60%)}
.page-hero h1{font-size:clamp(30px,4.2vw,50px)}
.page-hero p{margin-top:16px;color:var(--ink-2);max-width:640px}
.cats{display:flex;flex-wrap:wrap;gap:10px;margin:36px 0 40px}
.cat-item{
  padding:8px 18px;border-radius:999px;font-size:14px;color:var(--ink-2);
  border:1px solid var(--line);background:rgba(255,255,255,.02);transition:.2s;
}
.cat-item:hover{border-color:var(--line-2);color:var(--ink)}
.cat-item.on{background:var(--grad);color:#04121a;border-color:transparent;font-weight:700}
.news-list{display:grid;gap:18px}
.row{
  display:grid;grid-template-columns:250px 1fr;gap:26px;align-items:center;
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--panel);
  transition:transform .26s,border-color .26s;padding-right:28px;
}
.row:hover{transform:translateY(-3px);border-color:rgba(53,224,193,.3)}
.row-media{aspect-ratio:16/10;background:linear-gradient(135deg,rgba(53,224,193,.14),rgba(77,125,255,.14));overflow:hidden;position:relative}
.row-media img{width:100%;height:100%;object-fit:cover;opacity:.9}
.row-media .ph{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;color:var(--ink-mute)}
.row-body{padding:26px 0}
.row-body h2{font-size:20px;line-height:1.45;margin:0 0 10px}
.row-body h2 a:hover{color:var(--teal)}
.row-body p{font-size:14.4px;color:var(--ink-mute)}
.pager{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:48px}
.pager a,.pager span{
  min-width:42px;height:42px;padding:0 13px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:13.5px;color:var(--ink-2);border:1px solid var(--line);background:rgba(255,255,255,.02);
}
.pager a:hover{border-color:rgba(53,224,193,.4);color:var(--teal)}
.pager .cur{background:var(--grad);color:#04121a;border-color:transparent;font-weight:700}

/* ---------- 文章详情 ---------- */
.article{padding:56px 0 96px}
.crumb{font-family:var(--mono);font-size:12px;color:var(--ink-mute);display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}
.crumb a:hover{color:var(--teal)}
.crumb i{font-style:normal;opacity:.5}
.article-inner{max-width:800px;margin:0 auto}
.article h1{font-size:clamp(27px,3.6vw,42px);line-height:1.25;margin:14px 0 0}
.article-cover{margin:34px 0 0;border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
.article-body{margin-top:38px}
.article-body p{color:var(--ink-2);font-size:16.6px;line-height:2;margin:0 0 22px}
.article-body p .hl{font-weight:700}
.article-body img{border-radius:14px;margin:6px 0}
.article-foot{margin-top:54px;padding-top:30px;border-top:1px solid var(--line)}
.rel-title{font-size:22px;margin-bottom:26px}
.empty-box{
  text-align:center;padding:90px 24px;border:1px dashed var(--line-2);border-radius:var(--r-lg);background:var(--bg-2);
}

/* ---------- 自定页 ---------- */
.pg-block{padding:66px 0;border-bottom:1px solid var(--line)}
.pg-block:last-child{border-bottom:0}
.pg-paras{margin-top:22px;display:grid;gap:18px;max-width:820px}
.pg-paras p{color:var(--ink-2);font-size:16.4px;line-height:2}
.pg-items{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.pg-item{border:1px solid var(--line);border-radius:var(--r);padding:26px 24px;background:var(--panel)}
.pg-item .ico{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--grad-soft);border:1px solid rgba(53,224,193,.26);color:var(--teal);font-family:var(--mono);margin-bottom:16px}
.pg-item h3{font-size:17px;margin-bottom:9px}
.pg-item p{font-size:14.2px;color:var(--ink-mute)}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.contact-grid .pg-item .big{font-family:var(--mono);font-size:16px;color:var(--ink);margin-top:6px;word-break:break-all}

/* ---------- CTA 带 ---------- */
.cta-band{
  border-radius:var(--r-lg);padding:66px 56px;text-align:center;position:relative;overflow:hidden;
  border:1px solid rgba(53,224,193,.28);
  background:radial-gradient(80% 140% at 50% 0%,rgba(53,224,193,.14),transparent 65%),var(--panel);
}
.cta-band h2{font-size:clamp(26px,3.4vw,40px)}
.cta-band p{margin:18px auto 0;color:var(--ink-2);max-width:620px}
.cta-band .hero-actions{justify-content:center}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);margin-top:104px;padding:60px 0 44px;background:var(--bg-2)}
.site-footer > .container{display:flex;justify-content:space-between;gap:36px;flex-wrap:wrap}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;font-family:var(--mono);font-size:17px;font-weight:700}
.footer-desc{color:var(--ink-mute);font-size:14px;max-width:430px}
.footer-desc a{color:var(--ink-2)}
.footer-desc a:hover{color:var(--teal)}
.footer-links{display:flex;gap:26px;flex-wrap:wrap;margin-top:22px}
.footer-links a{font-size:13.6px;color:var(--ink-mute)}
.footer-links a:hover{color:var(--teal)}
.footer-meta{font-family:var(--mono);font-size:12.4px;color:var(--ink-mute);text-align:right;line-height:2}

/* ---------- 滚动出现 ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.22,.8,.3,1),transform .7s cubic-bezier(.22,.8,.3,1)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* ---------- 引擎渲染页兜底（news.php / news-detail.php / page.php 默认页） ---------- */
.wwcw-section{padding:70px 0}
.wwcw-section-head{margin-bottom:44px;max-width:760px}
.wwcw-kicker{font-family:var(--mono);font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--teal)}
.wwcw-section-title{font-size:clamp(26px,3.4vw,40px);margin-top:10px}
.wwcw-section-desc{margin-top:14px;color:var(--ink-2)}
.wwcw-hero{padding:26px 0 44px}
.wwcw-hero-eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.24em;color:var(--teal);text-transform:uppercase}
.wwcw-hero-title{font-size:clamp(30px,4.2vw,50px);margin-top:12px}
.wwcw-hero-sub{margin-top:16px;color:var(--ink-2);max-width:660px}
.wwcw-paragraphs{margin-top:22px;display:grid;gap:16px;max-width:820px}
.wwcw-paragraphs p{color:var(--ink-2);line-height:2}
.wwcw-items{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
.wwcw-item{border:1px solid var(--line);border-radius:var(--r);padding:24px;background:var(--panel)}
.wwcw-item .wwcw-ico{display:block;font-family:var(--mono);color:var(--teal);font-size:20px;margin-bottom:12px}
.wwcw-item h3{font-size:17px;margin-bottom:8px}
.wwcw-item p{font-size:14.2px;color:var(--ink-mute)}
.wwcw-news-head{margin-bottom:26px}
.wwcw-news-title{font-size:clamp(28px,3.6vw,44px);margin-top:10px}
.wwcw-news-desc{margin-top:14px;color:var(--ink-2)}
.wwcw-news-cats{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 38px}
.wwcw-cat{padding:8px 18px;border-radius:999px;font-size:14px;color:var(--ink-2);border:1px solid var(--line)}
.wwcw-cat.active{background:var(--grad);color:#04121a;border-color:transparent;font-weight:700}
.wwcw-news-list{display:grid;gap:18px}
.wwcw-news-row{display:grid;grid-template-columns:250px 1fr;gap:26px;align-items:center;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--panel)}
.wwcw-news-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,rgba(53,224,193,.14),rgba(77,125,255,.14))}
.wwcw-news-thumb img{width:100%;height:100%;object-fit:cover}
.wwcw-news-thumb--empty{display:grid;place-items:center;font-family:var(--mono);font-size:12px;color:var(--ink-mute)}
.wwcw-news-body{padding:24px 28px 24px 0}
.wwcw-news-meta{display:flex;gap:12px;font-family:var(--mono);font-size:11.5px;color:var(--ink-mute)}
.wwcw-news-tag{padding:3px 10px;border-radius:999px;background:rgba(53,224,193,.1);border:1px solid rgba(53,224,193,.24);color:var(--teal)}
.wwcw-news-head-title{font-size:20px;line-height:1.45;margin:10px 0}
.wwcw-news-sum{font-size:14.4px;color:var(--ink-mute)}
.wwcw-news-more{display:inline-block;margin-top:12px;font-family:var(--mono);font-size:12.5px;color:var(--teal)}
.wwcw-news-empty{color:var(--ink-mute);padding:60px 0;text-align:center}
.wwcw-article-inner{max-width:800px;margin:0 auto}
.wwcw-breadcrumb{font-family:var(--mono);font-size:12px;color:var(--ink-mute);display:flex;gap:10px;margin-bottom:26px;flex-wrap:wrap}
.wwcw-article-meta{display:flex;gap:12px;font-family:var(--mono);font-size:11.5px;color:var(--ink-mute)}
.wwcw-article-title{font-size:clamp(27px,3.6vw,42px);margin:14px 0 0}
.wwcw-article-cover{margin:30px 0 0;border-radius:var(--r);overflow:hidden}
.wwcw-article-body{margin-top:32px}
.wwcw-article-body p{color:var(--ink-2);font-size:16.4px;line-height:2;margin:0 0 20px}
.wwcw-article-foot{margin-top:44px}
.wwcw-btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:12px;font-size:14px;font-weight:700;background:var(--grad);color:#04121a}
.wwcw-btn-ghost{background:rgba(255,255,255,.03);color:var(--ink);border:1px solid var(--line-2)}
.wwcw-pagination{display:flex;gap:8px;justify-content:center;margin-top:40px;flex-wrap:wrap}
.wwcw-pagination .pg{min-width:42px;height:42px;padding:0 13px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:13.5px;color:var(--ink-2);border:1px solid var(--line)}
.wwcw-pagination .pg.active{background:var(--grad);color:#04121a;border-color:transparent;font-weight:700}
.wwcw-alt{background:var(--bg-2)}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:46px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr 1fr}
  .arch{grid-template-columns:1fr}
  .wwcw-items{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:980px){
  .nav-toggle{display:inline-flex}
  .site-header > .container{position:relative}
  .nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(6,10,18,.985);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line-2);border-top:1px solid var(--line);
    box-shadow:var(--shadow);padding:10px 24px 22px;z-index:70;
  }
  .nav.open{display:flex}
  .nav-link{padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px;border-radius:0}
  .nav-cta{margin:16px 0 0;text-align:center;justify-content:center;padding:14px 18px}
  .scene{grid-template-columns:1fr}
  .scene-media{min-height:230px}
  .scene.rev .scene-media{order:0}
  .scene-media::after,.scene.rev .scene-media::after{background:linear-gradient(180deg,transparent 35%,rgba(11,19,34,.96) 100%)}
  .pg-items,.contact-grid{grid-template-columns:1fr}
  .sec-list{grid-template-columns:1fr}
  .cta-band{padding:48px 26px}
}
@media (max-width:760px){
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .grid-4,.grid-3,.grid-2,.news-grid,.compare{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stats li{padding:24px 20px}
  .row{grid-template-columns:1fr;padding-right:0}
  .row-media{aspect-ratio:16/9}
  .row-body{padding:22px 24px 26px}
  .wwcw-news-row{grid-template-columns:1fr}
  .wwcw-news-body{padding:20px 22px 24px}
  .wwcw-items{grid-template-columns:1fr}
  .scene-body{padding:32px 24px}
  .site-footer > .container{flex-direction:column;gap:26px}
  .footer-meta{text-align:left}
  .arch-figure{padding:16px 10px 12px}
  .arch-ipc-grid{grid-template-columns:1fr}
  .hero{padding:66px 0 62px}
  /* 代码块：窄屏改为换行显示，避免长行被横向裁切 */
  .code pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:12.4px;line-height:1.85}
  .term-body .l{white-space:pre-wrap;overflow-wrap:anywhere}
}
@media (max-width:420px){
  .stats{grid-template-columns:1fr}
  .brand-en{display:none}
  .hero-actions .btn{width:100%;justify-content:center}
}