/* ================= ReLife 官网样式 =================
   深色电影感主题 · 青绿(teal) + 琥珀(amber) 双色点缀
   无外链依赖，纯系统字体
==================================================== */

:root{
  --bg:#080c14;
  --bg-2:#0b1220;
  --panel:#101a2b;
  --panel-2:#0d1626;
  --line:rgba(148,163,184,.16);
  --line-strong:rgba(148,163,184,.28);
  --text:#e8eef8;
  --muted:#94a5bd;
  --accent:#2dd4bf;
  --accent-d:#14b8a6;
  --accent-2:#fbbf24;
  --danger:#f87171;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 18px 50px -20px rgba(0,0,0,.75);
  --maxw:1180px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:16px;line-height:1.7;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.25;margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
code{font-family:var(--mono);font-size:.9em}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.wrap-narrow{max-width:820px}
.muted{color:var(--muted)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  border:1px solid transparent;border-radius:999px;cursor:pointer;
  font:inherit;font-weight:600;white-space:nowrap;
  padding:11px 22px;transition:transform .16s ease,background .2s,border-color .2s,box-shadow .2s;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-d));color:#04241f;box-shadow:0 10px 26px -12px rgba(45,212,191,.85)}
.btn-primary:hover{box-shadow:0 14px 32px -12px rgba(45,212,191,.95)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:var(--accent)}
.btn-sm{padding:8px 16px;font-size:.9rem}
.btn-lg{padding:14px 28px;font-size:1.02rem}

/* ---------- 导航 ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(8,12,20,.72);backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.12rem;letter-spacing:.01em}
.brand-mark{display:inline-flex;line-height:0;border-radius:9px;overflow:hidden}
.brand-text{background:linear-gradient(120deg,#fff,#9fe9df);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;gap:22px;margin-left:auto;font-size:.94rem;color:var(--muted)}
.nav-links a{position:relative;padding:4px 0;transition:color .2s}
.nav-links a:hover{color:var(--text)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-links+.nav-actions{margin-left:22px}
.lang-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:46px;height:36px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  color:var(--text);font:inherit;font-weight:700;font-size:.85rem;letter-spacing:.03em;
  cursor:pointer;transition:border-color .2s,background .2s;
}
.lang-toggle:hover{border-color:var(--accent);background:rgba(45,212,191,.1)}

/* ---------- Hero ---------- */
.hero{position:relative;isolation:isolate;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background:url("hero.jpg") center 42%/cover no-repeat;
  transform:scale(1.02);
}
.hero-veil{
  position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(90deg,rgba(8,12,20,.96) 0%,rgba(8,12,20,.86) 34%,rgba(8,12,20,.42) 62%,rgba(8,12,20,.28) 100%),
    linear-gradient(180deg,rgba(8,12,20,.55) 0%,rgba(8,12,20,0) 26%,rgba(8,12,20,.55) 82%,var(--bg) 100%);
}
.hero-inner{padding:104px 24px 96px;max-width:900px}
.badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 15px;border-radius:999px;font-size:.86rem;font-weight:600;
  background:rgba(45,212,191,.1);border:1px solid rgba(45,212,191,.32);color:#a7f3e8;
  margin-bottom:22px;
}
.badge .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(45,212,191,.18)}
.hero-title{
  font-size:clamp(3.2rem,8vw,5.6rem);font-weight:800;letter-spacing:-.03em;line-height:1;
  background:linear-gradient(120deg,#ffffff 10%,#a7f3e8 55%,#fbbf24 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:20px;
}
.hero-sub{font-size:clamp(1.02rem,1.7vw,1.24rem);color:#cbd8ea;max-width:660px}
.chips{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:26px 0 0}
.chips li{
  font-size:.87rem;font-weight:600;color:#cfe0f2;
  padding:7px 15px;border-radius:999px;
  background:rgba(255,255,255,.055);border:1px solid var(--line-strong);
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-note{margin-top:22px;font-size:.9rem;color:var(--muted)}

/* ---------- 统计条 ---------- */
.stats{border-bottom:1px solid var(--line);background:var(--bg-2)}
.stats-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;padding:30px 24px}
.stat{text-align:center;padding:8px 4px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:clamp(1.7rem,3.4vw,2.3rem);font-weight:800;color:#fff;letter-spacing:-.02em}
.stat span{font-size:.84rem;color:var(--muted)}

/* ---------- 通用分节 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-block;font-size:.82rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;
}
.h2{font-size:clamp(1.7rem,3.6vw,2.5rem);margin-bottom:16px}
.lead{color:var(--muted);font-size:1.05rem;max-width:760px}
.section .lead{margin-bottom:44px}

/* ---------- Why ---------- */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.why-card{
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;
  transition:border-color .22s,transform .22s;
}
.why-card:hover{border-color:rgba(45,212,191,.4);transform:translateY(-3px)}
.why-card h3{font-size:1.06rem;margin-bottom:10px;color:#fff}
.why-card p{font-size:.92rem;color:var(--muted)}

/* ---------- 功能网格 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.fcard{
  position:relative;background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px;
  transition:border-color .22s,transform .22s,box-shadow .22s;
}
.fcard::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(340px 120px at 50% -10%,rgba(45,212,191,.14),transparent 70%);
  opacity:0;transition:opacity .25s;
}
.fcard:hover{border-color:rgba(45,212,191,.42);transform:translateY(-4px);box-shadow:var(--shadow)}
.fcard:hover::after{opacity:1}
.ficon{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:12px;margin-bottom:16px;
  background:rgba(45,212,191,.1);border:1px solid rgba(45,212,191,.28);color:var(--accent);
}
.ficon svg{width:24px;height:24px}
.fcard h3{font-size:1.04rem;margin-bottom:9px;color:#fff}
.fcard p{font-size:.9rem;color:var(--muted);line-height:1.68}

/* ---------- 门户展示 ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.tick-list{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:12px}
.tick-list li{position:relative;padding-left:30px;font-size:.95rem;color:#c9d7ea}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.45em;width:16px;height:16px;border-radius:50%;
  background:rgba(45,212,191,.16);
  box-shadow:inset 0 0 0 1.6px var(--accent);
}
.tick-list li::after{
  content:"";position:absolute;left:5px;top:.72em;width:5px;height:9px;
  border:2px solid var(--accent);border-top:0;border-left:0;transform:rotate(42deg);
}
.portal-tree{
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);
}
.pt-root{
  display:inline-block;font-family:var(--mono);font-size:.95rem;font-weight:700;color:#04241f;
  background:linear-gradient(135deg,var(--accent),var(--accent-d));
  padding:7px 16px;border-radius:10px;margin-bottom:18px;
}
.pt-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.pt-col{display:flex;flex-direction:column;gap:7px}
.pt-h{font-size:.82rem;font-weight:700;letter-spacing:.06em;color:var(--accent-2);text-transform:uppercase;margin-bottom:2px}
.pt-col span:not(.pt-h){
  font-size:.87rem;color:#c9d7ea;padding:6px 11px;border-radius:8px;
  background:rgba(255,255,255,.045);border:1px solid var(--line);
}

/* ---------- 安装步骤 ---------- */
.steps{list-style:none;padding:0;margin:0;display:grid;gap:16px}
.step{
  display:flex;gap:20px;align-items:flex-start;
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px;
}
.step-no{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1.1rem;color:#04241f;
  background:linear-gradient(135deg,var(--accent),var(--accent-d));
}
.step-body h3{font-size:1.08rem;margin-bottom:8px;color:#fff}
.step-body p{font-size:.94rem;color:var(--muted)}
.code{
  margin:12px 0 0;padding:12px 14px;border-radius:10px;overflow-x:auto;
  background:#060a11;border:1px solid var(--line);color:#9fe9df;
}
.notes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}
.note{background:rgba(255,255,255,.03);border:1px solid var(--line);border-left:3px solid var(--accent-2);border-radius:12px;padding:20px}
.note h3{font-size:.98rem;margin-bottom:8px;color:#fff}
.note p{font-size:.88rem;color:var(--muted)}

/* ---------- 指令表 ---------- */
.tabs{margin-top:8px}
.tab-btns{display:flex;gap:10px;margin-bottom:20px}
.tab-btn{
  font:inherit;font-weight:600;font-size:.92rem;color:var(--muted);
  padding:9px 20px;border-radius:999px;cursor:pointer;
  background:rgba(255,255,255,.04);border:1px solid var(--line-strong);
  transition:color .2s,border-color .2s,background .2s;
}
.tab-btn.active{color:#04241f;background:linear-gradient(135deg,var(--accent),var(--accent-d));border-color:transparent}
.tab-panel{display:none}
.tab-panel.active{display:block}
.cmd-table{width:100%;border-collapse:collapse;font-size:.93rem}
.cmd-table th,.cmd-table td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.cmd-table thead th{color:var(--accent);font-size:.82rem;letter-spacing:.08em;text-transform:uppercase;background:rgba(255,255,255,.025)}
.cmd-table tbody tr:hover{background:rgba(45,212,191,.045)}
.cmd-table td:first-child{white-space:nowrap;color:#a7f3e8;width:38%}
.cmd-table code{background:rgba(45,212,191,.1);border:1px solid rgba(45,212,191,.2);border-radius:6px;padding:2px 7px}
.cmd-table td:last-child{color:var(--muted)}
.table-foot{margin-top:16px;font-size:.86rem;color:var(--muted)}

/* ---------- 兼容性 ---------- */
.compat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.compat-col{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.compat-col h3{font-size:1.5rem;color:#fff;margin-bottom:12px;letter-spacing:-.01em}
.compat-col ul{list-style:none;padding:0;margin:0 0 12px;display:grid;gap:6px}
.compat-col li{font-size:.93rem;color:#c9d7ea;padding-left:16px;position:relative}
.compat-col li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.compat-col .muted{font-size:.84rem}
.compat-col-warn{border-color:rgba(248,113,113,.3)}
.compat-col-warn h3{color:#fca5a5}
.compat-col-warn li::before{background:var(--danger)}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;margin-top:8px}
.faq details{
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:border-color .2s;
}
.faq details[open]{border-color:rgba(45,212,191,.35)}
.faq summary{
  cursor:pointer;list-style:none;padding:18px 22px;font-weight:600;font-size:1rem;color:#eaf2fb;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";flex:0 0 auto;width:10px;height:10px;margin-right:4px;
  border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(45deg);transition:transform .22s;
}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq p{padding:0 22px 20px;color:var(--muted);font-size:.94rem;margin:0}

/* ---------- 联系 ---------- */
.contact-inner{text-align:center}
.contact .lead{margin-left:auto;margin-right:auto}
.contact-card{
  margin:32px auto 16px;max-width:440px;text-align:left;
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:8px 24px;box-shadow:var(--shadow);
}
.contact-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:15px 0;border-bottom:1px solid var(--line)}
.contact-row:last-child{border-bottom:0}
.contact-label{font-size:.86rem;color:var(--muted);letter-spacing:.04em}
.contact-value{font-weight:700;color:#fff;font-family:var(--mono);font-size:1.02rem}
.contact-todo{color:var(--accent-2)}
.contact-actions{display:flex;justify-content:center;margin:26px 0 18px}
.btn.copied{background:linear-gradient(135deg,#34d399,#10b981)}
.contact-tip{font-size:.84rem;color:var(--muted);max-width:460px;margin:0 auto}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--line);background:var(--bg-2);padding:38px 0}
.footer-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700}
.footer-meta{font-size:.88rem;color:var(--muted)}
.footer-copy{font-size:.84rem;color:#63758f}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .feature-grid{grid-template-columns:repeat(3,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .notes-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav-links{display:none}
  .stats-grid{grid-template-columns:repeat(3,1fr)}
  .stat{border-right:0}
  .two-col{grid-template-columns:1fr;gap:34px}
  .compat-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:720px){
  .section{padding:66px 0}
  .hero-inner{padding:76px 24px 68px}
  .feature-grid{grid-template-columns:1fr 1fr}
  .notes-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .pt-grid{grid-template-columns:1fr}
  .btn-lg{padding:13px 22px;font-size:.98rem}
  .cmd-table{font-size:.88rem}
  .cmd-table th,.cmd-table td{padding:11px 12px}
  .cmd-table td:first-child{white-space:normal;width:auto}
}
@media (max-width:520px){
  .feature-grid{grid-template-columns:1fr}
  .why-grid{grid-template-columns:1fr}
  .compat-grid{grid-template-columns:1fr}
  .hero-cta .btn{width:100%}
  .contact-card{padding:4px 18px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}