/* 本文件由 deploy/build-template.py 生成，请改 prototype/index.html 或 deploy/inner.css 后重新生成 */

:root{
  --mint:#10B981;
  --mint-d:#059669;
  --sky:#0EA5E9;
  --ink:#0F172A;
  --body:#475569;
  --muted:#94A3B8;
  --bg:#FFFFFF;
  --bg-alt:#F8FAFC;
  --border:#E2E8F0;
  --radius:16px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.05);
  --shadow:0 4px 16px rgba(15,23,42,.06);
  --shadow-lg:0 18px 48px rgba(15,23,42,.10);
  --max:1140px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Inter",system-ui,-apple-system,sans-serif;
  color:var(--body);background:var(--bg);line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.grad-text{
  background:linear-gradient(100deg,var(--mint-d),var(--sky));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- 导航 ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.82);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid rgba(226,232,240,.8);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);font-size:17px;letter-spacing:.2px}
.brand img{width:30px;height:30px;border-radius:8px;object-fit:cover;object-position:100% 50%}
.nav-links{display:flex;gap:26px;margin-left:auto;font-size:15px}
.nav-links a{color:var(--body);transition:color .18s}
.nav-links a:hover{color:var(--mint-d)}
.nav-cta{
  margin-left:8px;padding:9px 20px;border-radius:10px;
  background:linear-gradient(100deg,var(--mint),var(--mint-d));
  color:#fff;font-weight:600;font-size:14.5px;
  box-shadow:0 4px 14px rgba(16,185,129,.28);
  transition:transform .18s,box-shadow .18s;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(16,185,129,.34)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 84px}
.hero::before{
  content:"";position:absolute;inset:-20% -10% auto -10%;height:720px;
  background:
    radial-gradient(520px 340px at 18% 22%,rgba(16,185,129,.16),transparent 68%),
    radial-gradient(560px 380px at 82% 8%,rgba(14,165,233,.15),transparent 66%),
    radial-gradient(420px 300px at 55% 82%,rgba(16,185,129,.08),transparent 70%);
  filter:blur(6px);pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--mint-d);background:rgba(16,185,129,.10);
  border:1px solid rgba(16,185,129,.22);
}
.eyebrow b{color:var(--ink);font-weight:800;letter-spacing:.2px}
/* Hero 主标签：环境光传感器 + 软件联动（放大强调） */
.eyebrow-hero{
  padding:9px 20px;gap:10px;line-height:1.35;
  font-size:clamp(15px,1.45vw,17.5px);font-weight:600;letter-spacing:.3px;
  color:#0b7d68;
  background:linear-gradient(104deg,#ffffff 0%,#f4fdfa 100%);
  border:1.5px solid rgba(16,185,129,.45);
  box-shadow:0 9px 26px -11px rgba(11,125,104,.42),inset 0 1px 0 #fff;
}
.eyebrow-hero .eb-soft{opacity:.9;font-weight:650}
.eyebrow-hero b{
  font-size:1.15em;font-weight:850;letter-spacing:.4px;color:var(--ink);
}
.eyebrow-hero .dot{
  width:8px;height:8px;box-shadow:0 0 0 4px rgba(16,185,129,.18);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}
.dot{width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 3px rgba(16,185,129,.18)}
h1{
  margin-top:16px;font-size:clamp(21px,2.35vw,29px);line-height:1.34;
  color:var(--ink);font-weight:700;letter-spacing:-.2px;
}
h1 .grad-text{font-weight:800}
.hero-ad{
  margin-top:20px;font-size:clamp(16px,1.6vw,18.5px);line-height:1.8;
  color:var(--ink);font-weight:600;max-width:560px;letter-spacing:.3px;
}
.hero-ad b{color:var(--mint-d);font-weight:800}
.hero-sub{margin-top:20px;font-size:17px;max-width:520px;color:var(--body)}
.hero-sub b{color:var(--ink);font-weight:600}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 26px;border-radius:12px;font-size:15.5px;font-weight:650;
  transition:transform .18s,box-shadow .18s,background .18s;
}
.btn-primary{
  background:linear-gradient(100deg,var(--mint),var(--mint-d));color:#fff;
  box-shadow:0 8px 24px rgba(16,185,129,.30);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(16,185,129,.38)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--border);box-shadow:var(--shadow-sm)}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.trust{display:flex;gap:22px;flex-wrap:wrap;margin-top:28px;font-size:13.8px;color:var(--muted)}
.trust span{display:inline-flex;align-items:center;gap:7px}
.trust svg{flex:none}

/* ---------- Hero 右侧：纯 CSS「日出→屏幕自动调亮→日落→自动调暗」场景 ---------- */
.scene{
  position:relative;background:#fff;border:1px solid rgba(226,232,240,.9);
  border-radius:20px;overflow:hidden;box-shadow:var(--shadow-lg);
}
.scene svg{width:100%;display:block}
/* 场景卡顶部标题条 */
.scene-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:17px 20px 15px;border-bottom:1px solid var(--border);
  background:linear-gradient(180deg,#fff,#fafdfc);
}
.scene-head .sh-title{
  display:block;font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.2px;line-height:1.3;
}
.scene-head .sh-sub{display:block;margin-top:4px;font-size:12.6px;color:var(--muted);line-height:1.4}
.sh-live{
  flex:none;display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:999px;font-size:11.5px;font-weight:700;
  color:var(--mint-d);background:rgba(16,185,129,.10);border:1px solid rgba(16,185,129,.22);
}
.sh-live i{width:6px;height:6px;border-radius:50%;background:var(--mint);animation:pulse 1.8s ease-in-out infinite}

/* ---- 场景元素由 JS 统一时间轴驱动（见底部脚本），这里只留常驻动效 ---- */
.led{animation:ledPulse 2.2s ease-in-out infinite}
@keyframes ledPulse{0%,100%{opacity:.4}50%{opacity:1}}
.wave{stroke-dasharray:5 6;animation:waveFlow 1.6s linear infinite}
@keyframes waveFlow{to{stroke-dashoffset:-22}}
.scene svg text{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-weight:600;
}

/* 场景内提示：只在屏幕变亮/变暗时出现，下方大箭头指向屏幕 */
#tipGroup{transition:opacity .4s ease}

/* ---- HUD ---- */
.scene-hud{
  padding:14px 18px 15px;border-top:1px solid var(--border);background:#fff;
  display:flex;flex-direction:column;gap:11px;
}
.hud-row{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted)}
.hud-label{width:58px;flex:none;letter-spacing:.2px}
.hud-num{
  font-size:17px;font-weight:750;color:var(--ink);
  font-variant-numeric:tabular-nums;min-width:4.3ch;text-align:right;letter-spacing:-.3px;
}
.hud-unit{font-size:11.5px;color:var(--muted);width:20px;flex:none}
.hud-tag{
  margin-left:auto;display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:999px;font-size:11.5px;font-weight:600;
  color:var(--mint-d);background:rgba(16,185,129,.10);
  border:1px solid rgba(16,185,129,.22);
}
.hud-tag i{width:5px;height:5px;border-radius:50%;background:var(--mint);animation:ledPulse 2.2s ease-in-out infinite}

/* 亮度条 0–100 */
.bar{position:relative;flex:1;height:8px;border-radius:999px;background:#E9EFF6;margin:0 2px}
.bar-fill{
  position:absolute;left:0;top:0;height:100%;border-radius:999px;width:45%;
  background:linear-gradient(90deg,var(--mint),var(--sky));
  box-shadow:0 0 10px rgba(16,185,129,.38);
}
.bar-knob{
  position:absolute;top:50%;left:45%;
  width:15px;height:15px;border-radius:50%;background:#fff;
  border:3px solid var(--mint);transform:translate(-50%,-50%);
  box-shadow:0 2px 7px rgba(15,23,42,.20);
}
.bar-scale{font-size:10.5px;color:#B7C3D3;flex:none;font-variant-numeric:tabular-nums;letter-spacing:.3px}

/* ---------- 通用区块 ---------- */
section{padding:88px 0}
.sec-alt{background:var(--bg-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.sec-head{max-width:640px;margin:0 auto 54px;text-align:center}
.sec-head h2{font-size:clamp(25px,3vw,34px);color:var(--ink);font-weight:780;letter-spacing:-.3px;line-height:1.3}
.sec-head p{margin-top:14px;font-size:15.5px}

/* 痛点 */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pain{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:28px 26px;box-shadow:var(--shadow-sm);
}
.pain .no{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:rgba(239,68,68,.08);color:#DC2626;font-weight:800;font-size:14px;margin-bottom:16px;
}
.pain h3{font-size:16.5px;color:var(--ink);font-weight:700;margin-bottom:9px}
.pain p{font-size:14.6px}

/* 卖点 */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 22px;box-shadow:var(--shadow-sm);
  transition:transform .22s,box-shadow .22s,border-color .22s;
}
.feat:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(16,185,129,.35)}
.ico{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(16,185,129,.14),rgba(14,165,233,.14));
  margin-bottom:16px;
}
.feat h3{font-size:16px;color:var(--ink);font-weight:700;margin-bottom:8px}
.feat p{font-size:14.2px;line-height:1.65}

/* 原理 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:s}
.step{
  position:relative;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);padding:30px 24px 26px;box-shadow:var(--shadow-sm);
}
.step::before{
  counter-increment:s;content:counter(s);
  position:absolute;top:-14px;left:24px;
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(100deg,var(--mint),var(--sky));
  color:#fff;font-size:14px;font-weight:800;display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(16,185,129,.30);
}
.step h3{margin:10px 0 9px;font-size:16.5px;color:var(--ink);font-weight:700}
.step p{font-size:14.3px}

/* 数据实证 */
.evidence{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center}
.chart-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:16px;box-shadow:var(--shadow);
}
.chart-card img{
  width:100%;border-radius:10px;border:1px solid #DCE5EF;background:#fff;
}
.chart-cap{margin-top:12px;font-size:13px;color:var(--muted);text-align:center}
.ev-copy h2{font-size:clamp(24px,2.8vw,31px);color:var(--ink);font-weight:780;line-height:1.32;letter-spacing:-.3px}
.ev-copy p{margin-top:16px;font-size:15.2px}
.kpis{display:flex;gap:30px;margin-top:28px;flex-wrap:wrap}
.kpi b{display:block;font-size:26px;font-weight:800;color:var(--ink);letter-spacing:-.5px}
.kpi span{font-size:13px;color:var(--muted)}

/* 评价 */
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rev{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
}
.stars{display:flex;gap:3px;margin-bottom:14px}
.rev q{quotes:none;font-size:14.8px;color:var(--ink);line-height:1.72;flex:1}
.rev .meta{margin-top:18px;font-size:12.6px;color:var(--muted);border-top:1px solid var(--border);padding-top:14px}
.rev .meta a{color:var(--mint-d);font-weight:600}

/* 算法屏 */
.algo{display:grid;grid-template-columns:1.04fr .96fr;gap:44px;align-items:center}
.algo-list{display:flex;flex-direction:column;gap:14px}
.algo-item{
  display:flex;gap:15px;background:#fff;border:1px solid var(--border);
  border-radius:14px;padding:19px 21px;box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s;
}
.algo-item:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.algo-item .idx{
  width:30px;height:30px;flex:none;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(100deg,var(--mint),var(--sky));color:#fff;
  font-weight:800;font-size:12.5px;
}
.algo-item h3{font-size:15.4px;color:var(--ink);font-weight:700;margin-bottom:4px}
.algo-item p{font-size:14px;line-height:1.65}

/* 功能屏：娱乐模式大卡 + 4 小卡 */
.feat-2{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat-wide{
  grid-column:span 4;
  background:linear-gradient(122deg,#0d1b2a,#123a44);border:0;color:#fff;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:36px;align-items:center;
}
.fw-tags{flex-direction:column;align-items:flex-end;gap:9px;margin-top:0}
.feat-wide h3{color:#fff;font-size:18px;margin-bottom:9px}
.feat-wide p{color:rgba(255,255,255,.74);font-size:14.2px;line-height:1.7;max-width:760px}
.feat-wide .ico{background:rgba(255,255,255,.12)}
.tag-row{display:flex;gap:7px;flex-wrap:wrap;margin-top:14px}
.tag{
  padding:4px 11px;border-radius:999px;font-size:11.5px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.17);
  color:rgba(255,255,255,.86);
}

/* 安装两步 */
.install{display:grid;grid-template-columns:1fr 1fr;gap:22px;max-width:880px;margin:0 auto}
.ins{
  position:relative;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);padding:32px 28px 30px;box-shadow:var(--shadow-sm);
}
.ins .badge{
  position:absolute;top:-13px;left:26px;padding:4px 13px;border-radius:999px;
  background:linear-gradient(100deg,var(--mint),var(--mint-d));color:#fff;
  font-size:12px;font-weight:700;box-shadow:0 6px 16px rgba(16,185,129,.30);
}
.ins h3{font-size:17px;color:var(--ink);font-weight:700;margin:6px 0 10px}
.ins p{font-size:14.3px;text-wrap:pretty}
.ins p .nb{white-space:nowrap}
.ins p b{color:var(--ink);font-weight:700}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
details{
  background:#fff;border:1px solid var(--border);border-radius:13px;
  padding:18px 22px;margin-bottom:12px;box-shadow:var(--shadow-sm);
}
details[open]{border-color:rgba(16,185,129,.32);box-shadow:var(--shadow)}
summary{
  cursor:pointer;list-style:none;font-weight:650;color:var(--ink);font-size:15.4px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:20px;color:var(--mint-d);font-weight:400;transition:transform .2s}
details[open] summary::after{content:"−"}
details p{margin-top:13px;font-size:14.6px;color:var(--body)}

/* 页脚 */
footer{background:var(--bg-alt);border-top:1px solid var(--border);padding:48px 0 36px}
.foot-grid{display:flex;justify-content:space-between;gap:36px;flex-wrap:wrap;align-items:flex-start}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink)}
.foot-brand img{width:28px;height:28px;border-radius:7px;object-fit:cover;object-position:100% 50%}
.foot-links{display:flex;gap:24px;font-size:14px;flex-wrap:wrap}
.foot-links a:hover{color:var(--mint-d)}
.copyright{margin-top:30px;padding-top:22px;border-top:1px solid var(--border);font-size:12.8px;color:var(--muted);display:flex;gap:16px;flex-wrap:wrap}

/* 动效 */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s cubic-bezier(.22,.7,.3,1),transform .6s cubic-bezier(.22,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* 响应式 */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-sub,.hero-ad{max-width:none}
  .algo{grid-template-columns:1fr;gap:34px}
  .feat-2{grid-template-columns:repeat(2,1fr)}
  .feat-wide{grid-column:span 2}
}
@media (max-width:768px){
  .nav-links{display:none}
  section{padding:62px 0}
  .hero{padding:48px 0 60px}
  .pain-grid,.steps,.rev-grid{grid-template-columns:1fr}
  .feat-2{grid-template-columns:1fr}
  .feat-wide{grid-column:span 1;grid-template-columns:1fr;gap:20px}
  .fw-tags{flex-direction:row;align-items:flex-start}
  .install{grid-template-columns:1fr}
  .scene-hud{gap:14px;padding:11px 14px;font-size:12px}
  .hud-tag{margin-left:0}
  .kpis{gap:22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ==========================================================================
   内页（分类 / 文章 / 单页 / 搜索 / 404）—— 与首页同一套设计语言
   由 deploy/build-template.py 拼到 assets/site.css 末尾
   ========================================================================== */

/* 移动端菜单（<details> 实现，无需 JS） */
.nav-mobile{display:none;margin-left:auto;position:relative}
.nav-mobile>summary{
  list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
  padding:8px 14px;border:1px solid var(--border);border-radius:10px;background:#fff;
}
.nav-mobile>summary::-webkit-details-marker{display:none}
.nav-mobile>summary::after{content:"▾";font-size:11px;color:var(--muted)}
.nav-m-list{
  position:absolute;right:0;top:calc(100% + 10px);z-index:60;
  display:flex;flex-direction:column;min-width:176px;padding:8px;
  background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow-lg);
}
.nav-m-list a{padding:9px 12px;border-radius:9px;font-size:14.4px;color:var(--body)}
.nav-m-list a:hover{background:var(--bg-alt);color:var(--mint-d)}
.nav-m-list a.on{color:var(--mint-d);font-weight:650;background:rgba(16,185,129,.08)}

/* 当前栏目高亮 */
.nav-links a.on{color:var(--mint-d);font-weight:650}

/* 页脚补充：与首页同一套 foot-grid / foot-links */
.foot-desc{margin-top:12px;font-size:13.6px;max-width:320px;color:var(--muted);line-height:1.65}
.foot-links a{color:var(--body)}

/* 页面主容器 */
body.qchild{background:var(--bg);color:var(--body)}
.site-main{display:block}

/* 页头 */
.page-head{
  padding:44px 0 34px;border-bottom:1px solid var(--border);
  background:linear-gradient(180deg,#F6FAFD,#FFFFFF);
}
.page-head .crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12.8px;color:var(--muted);margin-bottom:14px;
}
.page-head .crumb a{color:var(--muted)}
.page-head .crumb a:hover{color:var(--mint-d)}
.page-head .crumb .sep{opacity:.5}
.page-head .crumb .cur{color:var(--body);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-head h1{
  font-size:clamp(24px,3vw,33px);font-weight:800;color:var(--ink);
  letter-spacing:-.4px;line-height:1.32;
}
.page-head .sub{margin-top:10px;font-size:14.4px;color:var(--muted);display:flex;gap:14px;flex-wrap:wrap}
.page-head .sub a{color:var(--mint-d);font-weight:600}
.page-head .sub .cat-tag{color:var(--mint-d);font-weight:600}

/* 正文区 */
.page-body{padding:44px 0 68px}
.page-body.narrow{max-width:860px;margin:0 auto}

/* 文章列表卡片 */
.post-list{display:flex;flex-direction:column;gap:14px}
.post-card{
  display:block;padding:22px 24px;border-radius:16px;
  background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:rgba(16,185,129,.35)}
.post-card h2{font-size:17.5px;font-weight:700;color:var(--ink);line-height:1.45;letter-spacing:-.2px}
.post-card .meta{margin-top:9px;display:flex;flex-wrap:wrap;gap:12px;font-size:12.6px;color:var(--muted)}
.post-card .meta .cat{color:var(--mint-d);font-weight:600}
.post-card .excerpt{margin-top:10px;font-size:14.2px;line-height:1.72;color:var(--body)}
.post-card .more{margin-top:12px;font-size:13.4px;color:var(--mint-d);font-weight:600}

/* 文章正文 */
.post-body{
  padding:34px 38px;border-radius:18px;
  background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-sm);
  font-size:15.4px;line-height:1.9;color:var(--body);
}
.post-body>*:first-child{margin-top:0}
.post-body h2{font-size:21px;font-weight:780;color:var(--ink);margin:34px 0 14px;line-height:1.45;letter-spacing:-.3px}
.post-body h3{font-size:17.5px;font-weight:700;color:var(--ink);margin:28px 0 12px;line-height:1.5}
.post-body h4{font-size:16px;font-weight:700;color:var(--ink);margin:24px 0 10px}
.post-body p{margin:0 0 18px}
.post-body ul,.post-body ol{margin:0 0 18px 24px}
.post-body li{margin-bottom:9px}
.post-body img{max-width:100%;height:auto;border-radius:12px;margin:10px 0}
.post-body a{color:var(--mint-d);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.post-body a:hover{color:var(--mint)}
.post-body blockquote{
  margin:22px 0;padding:14px 20px;border-left:3px solid var(--mint);
  background:rgba(16,185,129,.06);border-radius:0 10px 10px 0;color:var(--body);
}
.post-body blockquote p:last-child{margin-bottom:0}
.post-body code{background:#F1F5F9;padding:2px 6px;border-radius:6px;font-size:.9em}
.post-body pre{background:#0F172A;color:#E2E8F0;padding:16px 18px;border-radius:12px;overflow:auto;margin:0 0 18px}
.post-body pre code{background:none;padding:0;color:inherit}
.post-body hr{border:0;border-top:1px solid var(--border);margin:30px 0}
.post-body table{width:100%;border-collapse:collapse;margin:0 0 18px;font-size:14.4px}
.post-body th,.post-body td{border:1px solid var(--border);padding:10px 12px;text-align:left}
.post-body th{background:var(--bg-alt);color:var(--ink);font-weight:700}
.post-body iframe{max-width:100%}
/* 宽表格在手机上横向滚动，不撑破正文 */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 18px;border-radius:12px}
.table-wrap table{margin:0;min-width:660px;font-size:13.6px}
.table-wrap th,.table-wrap td{padding:9px 11px;vertical-align:top}

/* 上下篇 + 返回 */
.post-nav{display:flex;justify-content:space-between;gap:16px;margin-top:22px;flex-wrap:wrap;font-size:14px}
.post-nav a{color:var(--mint-d);font-weight:600}
.post-nav .n{color:var(--muted)}
.back-home{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap;justify-content:center}

/* 分类说明（分类页顶部一段正文，给搜索引擎看的） */
.page-head .arc-desc{
  margin-top:12px;max-width:660px;font-size:14.8px;line-height:1.75;color:var(--body);
}
.page-head .arc-desc p{margin:0 0 8px}
.page-head .arc-desc p:last-child{margin-bottom:0}

/* 相关内容（文章页底部同分类内链） */
.related{
  margin-top:34px;padding:22px 24px;border:1px solid var(--border);
  border-radius:16px;background:#fff;
}
.related h2{
  margin:0 0 12px;font-size:15px;font-weight:750;color:var(--ink);
  letter-spacing:.2px;
}
.related ul{list-style:none;margin:0;padding:0}
.related li{padding:9px 0;border-top:1px solid var(--border)}
.related li:first-child{border-top:0;padding-top:0}
.related a{color:var(--mint-d);font-size:14.8px;line-height:1.6;text-decoration:none}
.related a:hover{text-decoration:underline;text-underline-offset:3px}

/* 分页 */
.pager{margin-top:34px;display:flex;justify-content:center}
.pager .page-numbers{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:40px;height:40px;padding:0 13px;margin:0 4px;
  border:1px solid var(--border);border-radius:11px;background:#fff;
  font-size:14px;color:var(--body);transition:border-color .18s,color .18s;
}
.pager .page-numbers:hover{border-color:rgba(16,185,129,.45);color:var(--mint-d)}
.pager .page-numbers.current{background:var(--mint);border-color:var(--mint);color:#fff;font-weight:700}
.pager .page-numbers.dots{border-color:transparent;background:none}

/* 空状态 */
.empty{text-align:center;padding:56px 20px;border:1px dashed var(--border);border-radius:18px;background:#fff}
.empty h2{font-size:20px;font-weight:780;color:var(--ink)}
.empty p{margin:10px 0 22px;font-size:14.6px;color:var(--muted)}
.empty .btn{display:inline-flex}

/* 404 */
.err-404{text-align:center;padding:70px 20px 90px}
.err-404 .code{
  font-size:clamp(64px,12vw,120px);font-weight:850;letter-spacing:-4px;
  background:linear-gradient(100deg,var(--mint-d),var(--sky));
  -webkit-background-clip:text;background-clip:text;color:transparent;line-height:1;
}
.err-404 h1{margin-top:16px;font-size:24px;font-weight:780;color:var(--ink)}
.err-404 p{margin:12px auto 26px;max-width:440px;font-size:14.8px;color:var(--muted)}

@media (max-width:768px){
  /* 导航：三件套（logo / 菜单 / 下载）挤在一行，收一收尺寸 */
  .nav-inner{gap:10px;height:60px}
  .brand{font-size:15.5px;gap:8px}
  .brand img{width:26px;height:26px;border-radius:7px}
  .nav-cta{margin-left:0;padding:8px 13px;font-size:13.5px;white-space:nowrap}
  .nav-mobile>summary{padding:7px 11px;font-size:13.5px;white-space:nowrap}
  .nav-m-list{min-width:160px}

  .nav-mobile{display:block}
  .page-head{padding:32px 0 26px}
  .post-body{padding:24px 20px;border-radius:14px;font-size:15px}
  .post-body h2{font-size:19px}
  .post-card{padding:18px 18px}
  .page-body{padding:32px 0 52px}
}

@media (max-width:340px){
  .brand-name{display:none}
}

/* 菜单按钮：压掉主题/框架给的绿色聚焦光晕，只留一层细描边 */
.nav-mobile>summary:focus,
.nav-mobile>summary:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(16,185,129,.22);
}