/* ============================================================================
   霸天IM · 品牌官网样式   v1.0
   设计语言：纯黑 #0B0B0C + 品牌红 #F40000 / #FF3A22（取自 Logo）
   与 App / 运营后台同一套 tokens：圆角 16-22px、细边框、微妙渐变光斑
   ========================================================================== */

/* ---------- tokens ---------- */
:root{
  --ink:        #0B0B0C;
  --ink-1:      #0F0F11;
  --ink-2:      #141417;
  --ink-3:      #1A1A1F;
  --line:       rgba(255,255,255,.075);
  --line-2:     rgba(255,255,255,.13);
  --line-3:     rgba(255,255,255,.22);
  --txt:        #FFFFFF;
  --txt-2:      #A7A7B2;
  --txt-3:      #7E7E8A;
  --txt-4:      #5A5A65;
  --red:        #F40000;
  --red-2:      #FF3A22;
  --red-soft:   rgba(244,0,0,.12);
  --grad:       linear-gradient(135deg,#FF3A22 0%,#D40000 100%);
  --grad-soft:  linear-gradient(135deg,rgba(255,58,34,.16),rgba(244,0,0,.05));
  --card-grad:  linear-gradient(180deg,#15151A 0%,#0F0F12 100%);
  --r-lg: 22px;
  --r:    18px;
  --r-sm: 12px;
  --sh:    0 24px 60px -28px rgba(0,0,0,.9);
  --sh-red:0 18px 44px -18px rgba(244,0,0,.55);
  --nav-h: 72px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scrollbar-color:#2A2A31 #0B0B0C;
}
body{
  background:var(--ink);
  color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Noto Sans CJK SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
  font-feature-settings:"kern" 1;
}
img,svg{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
ul,ol{list-style:none;}
::selection{background:rgba(244,0,0,.35);color:#fff;}
:focus-visible{outline:2px solid var(--red-2);outline-offset:3px;border-radius:4px;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#0B0B0C;}
::-webkit-scrollbar-thumb{background:#26262C;border-radius:6px;border:3px solid #0B0B0C;}
::-webkit-scrollbar-thumb:hover{background:#3A3A42;}

/* ---------- 基础排版 ---------- */
h1,h2,h3,h4{font-weight:700;line-height:1.16;letter-spacing:-.022em;}
h1{font-size:clamp(38px,5.1vw,66px);letter-spacing:-.03em;line-height:1.08;}
h2{font-size:clamp(28px,3.3vw,44px);letter-spacing:-.028em;line-height:1.16;}
h3{font-size:clamp(18px,1.5vw,21px);letter-spacing:-.015em;line-height:1.4;}
h4{font-size:16px;letter-spacing:-.01em;line-height:1.45;}
p{color:var(--txt-2);}
.wrap{width:100%;max-width:1220px;margin:0 auto;padding:0 32px;}
.narrow{max-width:820px;}
.grad-txt{
  background:linear-gradient(96deg,#FF5C3A 0%,#FF1A0E 42%,#C40000 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}
.muted{color:var(--txt-2);}
.dim{color:var(--txt-3);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:50px;padding:0 26px;border-radius:13px;
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:transform .25s var(--ease),box-shadow .3s var(--ease),background .25s,border-color .25s,color .25s;
  position:relative;overflow:hidden;
}
.btn svg{flex:0 0 auto;}
.btn-red{background:var(--grad);color:#fff;box-shadow:0 10px 30px -12px rgba(244,0,0,.75),inset 0 1px 0 rgba(255,255,255,.22);}
.btn-red::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,transparent 20%,rgba(255,255,255,.28) 48%,transparent 72%);
  transform:translateX(-120%);transition:transform .7s var(--ease);
}
.btn-red:hover{transform:translateY(-2px);box-shadow:0 18px 40px -14px rgba(244,0,0,.9),inset 0 1px 0 rgba(255,255,255,.25);}
.btn-red:hover::after{transform:translateX(120%);}
.btn-ghost{background:rgba(255,255,255,.04);color:#fff;border:1px solid var(--line-2);backdrop-filter:blur(8px);}
.btn-ghost:hover{background:rgba(255,255,255,.085);border-color:var(--line-3);transform:translateY(-2px);}
.btn-light{background:#fff;color:#0B0B0C;}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 16px 34px -16px rgba(255,255,255,.4);}
.btn-sm{height:40px;padding:0 18px;font-size:13.5px;border-radius:11px;}
.btn-lg{height:56px;padding:0 32px;font-size:16px;border-radius:15px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;font-size:14.5px;font-weight:600;color:#fff;
  transition:gap .25s var(--ease),color .2s;
}
.link-arrow svg{transition:transform .25s var(--ease);}
.link-arrow:hover{color:var(--red-2);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 通用小件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  height:32px;padding:0 14px 0 11px;border-radius:100px;
  background:rgba(255,255,255,.045);border:1px solid var(--line);
  font-size:12.5px;font-weight:600;color:var(--txt-2);letter-spacing:.02em;
  backdrop-filter:blur(6px);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--red-2);box-shadow:0 0 0 4px rgba(244,0,0,.16);}
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--red-2);
  text-transform:uppercase;margin-bottom:20px;
}
.kicker::before{content:"";width:22px;height:1.5px;background:linear-gradient(90deg,var(--red),transparent);border-radius:2px;}
.sec{padding:120px 0;position:relative;}
.sec-sm{padding:80px 0;}
.sec-head{max-width:680px;margin-bottom:64px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-head.center .kicker::after{content:"";width:22px;height:1.5px;background:linear-gradient(270deg,var(--red),transparent);border-radius:2px;}
.sec-head h2{margin-bottom:20px;}
.sec-head p{font-size:17px;line-height:1.75;color:var(--txt-2);}
.sec-head.center p{margin:0 auto;}
.sec-tight .sec-head{margin-bottom:44px;}
.hr{height:1px;background:var(--line);border:none;}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--nav-h);
  transition:background .35s var(--ease),border-color .35s,backdrop-filter .35s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(11,11,12,.78);
  border-bottom-color:var(--line);
  backdrop-filter:saturate(180%) blur(22px);
  -webkit-backdrop-filter:saturate(180%) blur(22px);
}
.nav-in{
  height:100%;display:flex;align-items:center;gap:40px;
  max-width:1220px;margin:0 auto;padding:0 32px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand img{width:30px;height:30px;object-fit:contain;}
.brand .bn{font-size:20px;font-weight:800;letter-spacing:-.02em;line-height:1;}
.brand .bt{
  font-size:10px;font-weight:600;color:var(--txt-3);letter-spacing:.1em;
  border-left:1px solid var(--line-2);padding-left:10px;margin-left:2px;line-height:1.4;
}
.nav-links{display:flex;align-items:center;gap:2px;margin:0 auto;}
.nav-links a{
  padding:9px 14px;border-radius:9px;font-size:14.5px;font-weight:500;color:var(--txt-2);
  transition:color .2s,background .2s;position:relative;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-links a.on{color:#fff;font-weight:600;}
.nav-links a.on::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad);
}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-right .login{font-size:14.5px;font-weight:500;color:var(--txt-2);padding:9px 12px;border-radius:9px;transition:color .2s;}
.nav-right .login:hover{color:#fff;}
.burger{
  display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line-2);
  flex-direction:column;align-items:center;justify-content:center;gap:0;
  margin-left:auto;background:rgba(255,255,255,.03);
}
.burger span{display:block;width:17px;height:1.6px;background:#fff;border-radius:2px;transition:.3s var(--ease);}
.burger span+span{margin-top:5px;}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.6px) rotate(45deg);}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg);}

/* 移动端菜单 */
.mnav{
  position:fixed;inset:var(--nav-h) 0 0;z-index:99;
  background:rgba(9,9,10,.96);backdrop-filter:blur(26px);
  padding:28px 24px 40px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s;
}
.mnav.open{opacity:1;visibility:visible;transform:none;}
.mnav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:19px 4px;font-size:17px;font-weight:600;color:#fff;
  border-bottom:1px solid var(--line);
}
.mnav a span{color:var(--txt-4);font-size:13px;font-weight:500;}
.mnav .mcta{display:flex;flex-direction:column;gap:10px;margin-top:28px;}
body.locked{overflow:hidden;}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  padding:calc(var(--nav-h) + 40px) 0 72px;overflow:hidden;isolation:isolate;
}
.hero-bg{position:absolute;inset:0;z-index:-2;background:var(--ink);}
.hero-bg::before{
  content:"";position:absolute;width:1100px;height:1100px;right:-300px;top:-380px;
  background:radial-gradient(circle,rgba(244,0,0,.38) 0%,rgba(196,0,0,.16) 34%,transparent 66%);
  filter:blur(30px);
}
.hero-bg::after{
  content:"";position:absolute;width:760px;height:760px;left:-320px;bottom:-380px;
  background:radial-gradient(circle,rgba(255,58,34,.13) 0%,transparent 64%);
  filter:blur(20px);
}
.hero-grid{
  position:absolute;inset:0;z-index:-1;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(ellipse 78% 62% at 62% 26%,#000 0%,transparent 78%);
  mask-image:radial-gradient(ellipse 78% 62% at 62% 26%,#000 0%,transparent 78%);
  opacity:.9;
}
.hero-in{
  display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:56px;width:100%;
  max-width:1220px;margin:0 auto;padding:0 32px;
}
.hero-copy{max-width:600px;position:relative;z-index:2;}
.hero h1{margin:26px 0 0;}
.hero h1 .l2{display:block;}
.hero-sub{
  margin-top:26px;font-size:17.5px;line-height:1.78;color:var(--txt-2);max-width:520px;
}
.hero-sub b{color:#fff;font-weight:600;}
.hero-cta{display:flex;align-items:center;gap:14px;margin-top:38px;flex-wrap:wrap;}
.hero-meta{
  display:flex;align-items:center;gap:22px;margin-top:30px;flex-wrap:wrap;
  font-size:13px;color:var(--txt-3);
}
.hero-meta i{display:flex;align-items:center;gap:6px;font-style:normal;}
.hero-meta i::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--txt-4);}
.hero-meta i:first-child::before{display:none;}

/* Hero 右侧舞台 */
.stage{position:relative;display:flex;align-items:center;justify-content:center;min-height:600px;}
.stage-glow{
  position:absolute;width:480px;height:480px;border-radius:50%;
  background:radial-gradient(circle,rgba(244,0,0,.46) 0%,rgba(180,0,0,.16) 45%,transparent 70%);
  filter:blur(46px);z-index:0;
}
.stage-ring{
  position:absolute;width:430px;height:430px;border-radius:50%;
  border:1px solid rgba(255,255,255,.075);z-index:0;
}
.stage-ring.r2{width:560px;height:560px;border-color:rgba(255,255,255,.045);}
.stage-ring.r3{width:690px;height:690px;border-color:rgba(255,255,255,.028);}

/* ---------- 手机 mock ---------- */
.dev{
  position:relative;z-index:2;width:302px;height:616px;border-radius:44px;
  background:#0A0A0B;
  box-shadow:
    0 0 0 1px rgba(255,255,255,.10),
    0 0 0 8px #17171A,
    0 0 0 9px rgba(255,255,255,.08),
    0 46px 90px -30px rgba(0,0,0,.95),
    0 30px 80px -20px rgba(244,0,0,.30);
  padding:8px;transform:translateZ(0);
}
.dev::after{
  content:"";position:absolute;inset:0;border-radius:44px;pointer-events:none;
  background:linear-gradient(140deg,rgba(255,255,255,.14),transparent 34%,transparent 66%,rgba(255,255,255,.05));
  mix-blend-mode:overlay;
}
.dev-scr{
  position:relative;width:100%;height:100%;border-radius:38px;overflow:hidden;
  background:#F4F4F6;display:flex;flex-direction:column;color:#0B0B0C;
  font-size:13px;
}
.dev-notch{
  position:absolute;top:8px;left:50%;transform:translateX(-50%);
  width:96px;height:24px;border-radius:14px;background:#0A0A0B;z-index:20;
}
.st-bar{
  height:42px;flex:0 0 42px;display:flex;align-items:flex-end;justify-content:space-between;
  padding:0 20px 5px;font-size:11.5px;font-weight:700;letter-spacing:.02em;color:#0B0B0C;
}
.st-r{display:flex;align-items:center;gap:4px;}
.st-r i{display:block;width:3px;border-radius:1px;background:#0B0B0C;}
.st-r .bat{width:18px;height:9px;border:1.2px solid #0B0B0C;border-radius:2.6px;position:relative;}
.st-r .bat::after{content:"";position:absolute;inset:1.6px;right:4px;background:#0B0B0C;border-radius:1px;}
.dv-head{padding:6px 18px 10px;display:flex;align-items:center;justify-content:space-between;}
.dv-head .t{font-size:21px;font-weight:800;letter-spacing:-.02em;}
.dv-head .acts{display:flex;gap:14px;color:#5A5A63;}
.dv-search{
  margin:0 14px 10px;height:34px;border-radius:10px;background:#fff;border:1px solid #EAEAEE;
  display:flex;align-items:center;gap:7px;padding:0 11px;font-size:12px;color:#A0A0A8;
}
.dv-list{flex:1;overflow:hidden;padding:0 8px;}
.dv-row{
  display:flex;align-items:center;gap:10px;padding:8px;border-radius:12px;position:relative;
}
.dv-row.hl{background:#fff;box-shadow:0 1px 3px rgba(11,11,12,.06);}
.dv-av{
  width:40px;height:40px;border-radius:13px;flex:0 0 auto;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:14px;font-weight:700;letter-spacing:.02em;
}
.g1{background:linear-gradient(135deg,#F40000,#FF3A22);}
.g2{background:linear-gradient(135deg,#26262B,#5C5C68);}
.g3{background:linear-gradient(135deg,#C9760A,#E9A93C);}
.g4{background:linear-gradient(135deg,#0E8A50,#2FA76F);}
.g5{background:linear-gradient(135deg,#1F3A8A,#3B6BD6);}
.dv-body{flex:1;min-width:0;}
.dv-body .n{display:flex;align-items:center;gap:5px;font-size:13.5px;font-weight:600;letter-spacing:-.01em;}
.dv-body .m{font-size:11.5px;color:#8A8A94;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.dv-meta{display:flex;flex-direction:column;align-items:flex-end;gap:4px;flex:0 0 auto;}
.dv-meta .tm{font-size:10px;color:#A8A8B0;}
.dv-badge{
  min-width:17px;height:17px;padding:0 5px;border-radius:9px;background:#F40000;color:#fff;
  font-size:10px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.dv-tag{font-size:9px;font-weight:700;color:#F40000;background:rgba(244,0,0,.10);padding:1px 4px;border-radius:3px;}
.dv-tab{
  position:relative;flex:0 0 62px;display:flex;align-items:center;background:#fff;
  border-top:1px solid #EDEDF0;padding-bottom:8px;
}
.dv-tab::before{
  content:"";position:absolute;left:0;right:0;bottom:100%;height:26px;
  background:linear-gradient(180deg,rgba(244,244,246,0),#F4F4F6 78%);
  pointer-events:none;
}
.dv-tab .tb{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:9.5px;color:#9A9AA4;font-weight:600;}
.dv-tab .tb.on{color:#F40000;}
.dv-tab .tb svg{width:21px;height:21px;}
.dv-homebar{position:absolute;bottom:5px;left:50%;transform:translateX(-50%);width:112px;height:4px;border-radius:3px;background:#0B0B0C;opacity:.9;z-index:25;}

/* 浮动卡片 */
.float-card{
  position:absolute;z-index:4;
  background:rgba(21,21,25,.82);
  border:1px solid rgba(255,255,255,.11);
  border-radius:16px;padding:13px 15px;
  backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  box-shadow:0 24px 50px -22px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.07);
  animation:floaty 7s ease-in-out infinite;
}
.float-card .fc-h{display:flex;align-items:center;gap:8px;font-size:11px;font-weight:700;letter-spacing:.06em;color:var(--txt-3);text-transform:uppercase;}
.float-card .fc-m{font-size:13px;font-weight:600;color:#fff;margin-top:6px;letter-spacing:-.01em;}
.float-card .fc-s{font-size:11px;color:var(--txt-3);margin-top:2px;}
.fc-ico{
  width:22px;height:22px;border-radius:7px;display:flex;align-items:center;justify-content:center;
  background:rgba(14,138,80,.16);color:#2FA76F;
}
.fc-a{top:-40px;left:-62px;animation-delay:-1.4s;}
.fc-b{bottom:-86px;right:-46px;animation-delay:-3.6s;}
.fc-b .fc-ico{background:rgba(244,0,0,.16);color:#FF5C3A;}
.fc-b .ring{display:flex;align-items:center;gap:10px;}
.fc-b .ring .num{font-size:19px;font-weight:800;letter-spacing:-.02em;}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

/* ---------- Logo 墙 ---------- */
.wall-sec{padding:44px 0 72px;border-bottom:1px solid var(--line);position:relative;}
.wall-lb{
  text-align:center;font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--txt-4);
  text-transform:uppercase;margin-bottom:34px;
}
.wall{display:flex;align-items:center;justify-content:center;gap:58px;flex-wrap:wrap;row-gap:26px;}
.wall span{
  font-size:17px;font-weight:700;color:#3C3C45;letter-spacing:.02em;
  transition:color .35s var(--ease);white-space:nowrap;
}
.wall span:hover{color:var(--txt-2);}

/* ---------- 价值/数字条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
}
.stat{background:var(--ink);padding:34px 28px;}
.stat .v{font-size:clamp(30px,3vw,40px);font-weight:800;letter-spacing:-.035em;line-height:1;}
.stat .v em{font-style:normal;font-size:.5em;font-weight:700;color:var(--txt-2);margin-left:3px;letter-spacing:0;}
.stat .k{font-size:13px;color:var(--txt-3);margin-top:12px;font-weight:500;}

/* ---------- 功能矩阵 ---------- */
.grid-9{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.fcard{
  position:relative;display:flex;flex-direction:column;
  padding:30px 28px 26px;border-radius:var(--r-lg);
  background:var(--card-grad);border:1px solid var(--line);
  transition:transform .35s var(--ease),border-color .35s,background .35s,box-shadow .35s;
  overflow:hidden;
}
.fcard::before{
  content:"";position:absolute;top:0;left:16%;right:16%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,58,34,.75),transparent);
  opacity:0;transition:opacity .35s;
}
.fcard::after{
  content:"";position:absolute;width:220px;height:220px;top:-120px;right:-90px;
  background:radial-gradient(circle,rgba(244,0,0,.16),transparent 68%);
  opacity:0;transition:opacity .4s;pointer-events:none;
}
.fcard:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.16);box-shadow:var(--sh);background:linear-gradient(180deg,#191920 0%,#101014 100%);}
.fcard:hover::before,.fcard:hover::after{opacity:1;}
.fc-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:22px;}
.f-ico{
  width:50px;height:50px;border-radius:15px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.02));
  border:1px solid var(--line-2);color:#fff;
  transition:color .3s,border-color .3s,background .3s,box-shadow .3s;
}
.fcard:hover .f-ico{
  color:#FF5C3A;border-color:rgba(244,0,0,.34);
  background:linear-gradient(160deg,rgba(244,0,0,.16),rgba(244,0,0,.04));
  box-shadow:0 8px 22px -12px rgba(244,0,0,.8);
}
.f-no{font-size:11px;font-weight:700;color:var(--txt-4);letter-spacing:.1em;padding-top:4px;}
.fcard h3{margin-bottom:10px;}
.fcard p{font-size:14px;line-height:1.7;color:var(--txt-2);}
.fc-foot{margin-top:20px;display:flex;align-items:center;justify-content:space-between;}
.fc-chips{display:flex;gap:6px;flex-wrap:wrap;}
.chip{
  font-size:11px;font-weight:600;color:var(--txt-3);padding:3px 8px;border-radius:6px;
  background:rgba(255,255,255,.045);border:1px solid var(--line);
}
.fc-go{color:var(--txt-4);transition:color .3s,transform .3s var(--ease);}
.fcard:hover .fc-go{color:var(--red-2);transform:translateX(3px);}

/* ---------- 三步上手 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;position:relative;}
.step{
  position:relative;padding:34px 30px 30px;border-radius:var(--r-lg);
  border:1px solid var(--line);background:rgba(255,255,255,.018);overflow:hidden;
}
.step .sn{
  font-size:52px;font-weight:800;letter-spacing:-.05em;line-height:1;
  background:linear-gradient(180deg,rgba(255,255,255,.20),rgba(255,255,255,.03));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:18px;font-variant-numeric:tabular-nums;
}
.step h3{margin-bottom:10px;font-size:19px;}
.step p{font-size:14px;line-height:1.72;color:var(--txt-2);}
.step .s-line{
  position:absolute;top:0;left:0;height:2px;width:100%;
  background:linear-gradient(90deg,var(--red),transparent 70%);opacity:.55;
}
.step .tagline{display:inline-block;margin-top:18px;font-size:11.5px;font-weight:700;color:var(--red-2);letter-spacing:.05em;}

/* ---------- 安全 / 私有化 ---------- */
.dark-panel{
  position:relative;border-radius:28px;overflow:hidden;
  background:linear-gradient(150deg,#141417 0%,#0C0C0E 58%,#160808 100%);
  border:1px solid var(--line);padding:64px;
}
.dark-panel::before{
  content:"";position:absolute;width:620px;height:620px;right:-180px;top:-240px;
  background:radial-gradient(circle,rgba(244,0,0,.20),transparent 62%);filter:blur(16px);
}
.dark-panel::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:linear-gradient(100deg,#000,transparent 62%);
  mask-image:linear-gradient(100deg,#000,transparent 62%);
}
.sec2{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.sec2 h2{margin-bottom:18px;}
.sec2 p{font-size:15.5px;line-height:1.78;}
.sec-list{margin-top:28px;display:flex;flex-direction:column;gap:2px;}
.sec-list li{display:flex;align-items:flex-start;gap:12px;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.055);}
.sec-list li:last-child{border-bottom:none;}
.sec-list .ck{
  width:19px;height:19px;border-radius:50%;flex:0 0 auto;margin-top:2px;
  background:rgba(244,0,0,.14);color:#FF5C3A;display:flex;align-items:center;justify-content:center;
}
.sec-list .ct{font-size:14.5px;font-weight:600;color:#fff;}
.sec-list .cd{font-size:13px;color:var(--txt-3);margin-top:2px;line-height:1.6;}

/* 安全卡（右侧） */
.audit-card{
  position:relative;border-radius:20px;border:1px solid var(--line-2);
  background:rgba(11,11,12,.72);backdrop-filter:blur(20px);overflow:hidden;
}
.audit-h{
  display:flex;align-items:center;gap:9px;padding:15px 20px;border-bottom:1px solid var(--line);
  font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--txt-3);text-transform:uppercase;
}
.audit-h .led{width:7px;height:7px;border-radius:50%;background:#2FA76F;box-shadow:0 0 0 3px rgba(47,167,111,.16);}
.audit-body{padding:8px 20px 20px;}
.arow{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.05);}
.arow:last-child{border-bottom:none;}
.arow .k{font-size:13px;color:var(--txt-3);width:88px;flex:0 0 auto;}
.arow .v{font-size:13.5px;font-weight:600;color:#fff;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:-.01em;}
.arow .ok{margin-left:auto;font-size:11px;font-weight:700;color:#2FA76F;display:flex;align-items:center;gap:4px;}

/* ---------- 行业预览 ---------- */
.sol-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.sol-mini{
  display:flex;flex-direction:column;justify-content:flex-end;min-height:190px;
  padding:24px;border-radius:var(--r);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.008));
  transition:border-color .3s,transform .3s var(--ease),background .3s;position:relative;overflow:hidden;
}
.sol-mini:hover{border-color:rgba(244,0,0,.3);transform:translateY(-3px);background:linear-gradient(180deg,rgba(244,0,0,.07),rgba(255,255,255,.01));}
.sol-mini .sn{font-size:11px;font-weight:700;color:var(--txt-4);letter-spacing:.12em;position:absolute;top:22px;left:24px;}
.sol-mini h4{font-size:17px;margin-bottom:6px;}
.sol-mini p{font-size:12.5px;line-height:1.6;color:var(--txt-3);}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;border-radius:28px;overflow:hidden;padding:76px 56px;text-align:center;
  background:linear-gradient(150deg,#1A0909 0%,#120C0C 40%,#0B0B0C 100%);
  border:1px solid rgba(244,0,0,.20);
}
.cta-band::before{
  content:"";position:absolute;width:760px;height:420px;left:50%;top:-160px;transform:translateX(-50%);
  background:radial-gradient(ellipse,rgba(244,0,0,.34),transparent 68%);filter:blur(30px);
}
.cta-band::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,58,34,.6),transparent);
}
.cta-band>*{position:relative;z-index:1;}
.cta-band h2{margin-bottom:16px;}
.cta-band p{font-size:16.5px;max-width:520px;margin:0 auto 34px;line-height:1.7;}
.cta-band .btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.foot{border-top:1px solid var(--line);padding:72px 0 0;margin-top:0;background:#0A0A0B;}
.foot-top{display:grid;grid-template-columns:1.6fr .8fr .8fr .8fr .9fr;gap:40px;padding-bottom:56px;}
.foot-brand{max-width:300px;}
.foot-brand .brand{margin-bottom:18px;}
.foot-brand p{font-size:13.5px;line-height:1.75;color:var(--txt-3);}
.foot-col h5{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--txt-4);text-transform:uppercase;margin-bottom:16px;}
.foot-col a{display:block;font-size:14px;color:var(--txt-2);padding:5px 0;transition:color .2s;}
.foot-col a:hover{color:#fff;}
.foot-bot{
  border-top:1px solid var(--line);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:12.5px;color:var(--txt-4);
}
.foot-bot .fl{display:flex;gap:18px;flex-wrap:wrap;}
.foot-bot a:hover{color:var(--txt-2);}

/* ---------- 内页页头 ---------- */
.phead{
  position:relative;padding:calc(var(--nav-h) + 84px) 0 72px;overflow:hidden;
  border-bottom:1px solid var(--line);
}
.phead::before{
  content:"";position:absolute;width:900px;height:600px;right:-200px;top:-320px;
  background:radial-gradient(ellipse,rgba(244,0,0,.22),transparent 66%);filter:blur(24px);
}
.phead-in{position:relative;z-index:1;max-width:760px;}
.phead h1{font-size:clamp(34px,4.2vw,54px);margin:20px 0 0;}
.phead p{font-size:17px;line-height:1.75;margin-top:20px;color:var(--txt-2);}
.crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--txt-4);}
.crumb a:hover{color:var(--txt-2);}
.crumb span{color:#3A3A42;}

/* ---------- 锚点偏移 ---------- */
[id]{scroll-margin-top:calc(var(--nav-h) + 28px);}

/* ---------- 功能详解页 ---------- */
.fnav{display:flex;gap:8px;flex-wrap:wrap;padding:26px 0 0;}
.fnav a{
  font-size:13px;font-weight:600;color:var(--txt-2);padding:8px 15px;border-radius:100px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:color .25s,border-color .25s,background .25s,transform .25s var(--ease);
}
.fnav a:hover{color:#fff;border-color:rgba(244,0,0,.42);background:rgba(244,0,0,.10);transform:translateY(-1px);}
.fmod{
  display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center;
  padding:74px 0;border-bottom:1px solid var(--line);position:relative;
}
.fmod:last-of-type{border-bottom:none;}
.fmod:nth-child(even) .fmod-txt{order:2;}
.fmod:nth-child(even) .fmod-vis{order:1;}
.fmod-txt .fmod-no{
  display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;
  letter-spacing:.14em;color:var(--red-2);margin-bottom:18px;
}
.fmod-txt .fmod-no::after{content:"";width:36px;height:1px;background:rgba(244,0,0,.4);}
.fmod-txt h2{font-size:clamp(26px,2.6vw,34px);margin-bottom:16px;}
.fmod-txt>p{font-size:15.5px;line-height:1.8;color:var(--txt-2);}
.fmod-ul{margin-top:24px;display:flex;flex-direction:column;gap:11px;}
.fmod-ul li{display:flex;gap:10px;font-size:14px;color:var(--txt-2);line-height:1.65;}
.fmod-ul li b{color:#fff;font-weight:600;}
.fmod-ul svg{flex:0 0 auto;margin-top:4px;color:var(--red-2);}
.fmod-vis{position:relative;}
.panel{
  position:relative;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(165deg,#15151A,#0D0D10);
  padding:26px;overflow:hidden;box-shadow:var(--sh);
}
.panel::before{
  content:"";position:absolute;width:320px;height:320px;top:-150px;right:-120px;
  background:radial-gradient(circle,rgba(244,0,0,.15),transparent 68%);
}
.panel-bar{display:flex;align-items:center;gap:6px;margin-bottom:20px;position:relative;}
.panel-bar i{width:8px;height:8px;border-radius:50%;background:#2A2A31;}
.panel-bar .pt{margin-left:10px;font-size:11.5px;font-weight:600;color:var(--txt-4);letter-spacing:.06em;}

/* 面板通用行 */
.p-row{
  display:flex;align-items:center;gap:11px;padding:12px 13px;border-radius:12px;
  border:1px solid rgba(255,255,255,.06);background:rgba(255,255,255,.02);margin-bottom:8px;
}
.p-row:last-child{margin-bottom:0;}
.p-row.hi{border-color:rgba(244,0,0,.28);background:linear-gradient(100deg,rgba(244,0,0,.11),rgba(244,0,0,.02));}
.p-av{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:#fff;background:linear-gradient(135deg,#2A2A33,#4A4A56);
}
.p-av.r{background:linear-gradient(135deg,#F40000,#FF3A22);}
.p-av.g{background:linear-gradient(135deg,#0E8A50,#2FA76F);}
.p-nm{font-size:13px;font-weight:600;color:#fff;line-height:1.4;}
.p-sb{font-size:11.5px;color:var(--txt-3);margin-top:1px;}
.p-rt{margin-left:auto;font-size:11px;color:var(--txt-4);flex:0 0 auto;text-align:right;}
.p-badge{display:inline-flex;align-items:center;height:19px;padding:0 7px;border-radius:5px;font-size:10px;font-weight:700;}
.b-ok{background:rgba(14,138,80,.16);color:#3BC583;}
.b-wait{background:rgba(201,118,10,.16);color:#E0A043;}
.b-red{background:rgba(244,0,0,.15);color:#FF6A52;}
.p-tags{display:flex;gap:6px;margin-bottom:14px;flex-wrap:wrap;}
.p-tag{font-size:11px;font-weight:600;color:var(--txt-3);padding:4px 9px;border-radius:7px;background:rgba(255,255,255,.05);border:1px solid var(--line);}
.p-tag.on{color:#fff;background:rgba(244,0,0,.16);border-color:rgba(244,0,0,.32);}

/* 组织树 */
.tree{font-size:13px;}
.tree .tn{display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:9px;color:var(--txt-2);}
.tree .tn.root{color:#fff;font-weight:600;}
.tree .tn.on{background:rgba(244,0,0,.10);color:#fff;}
.tree .tn .cnt{margin-left:auto;font-size:11px;color:var(--txt-4);font-variant-numeric:tabular-nums;}
.tree ul{margin-left:16px;padding-left:14px;border-left:1px solid rgba(255,255,255,.08);}
.tree .dd{width:5px;height:5px;border-radius:50%;background:var(--txt-4);flex:0 0 auto;}
.tree .dd.r{background:var(--red-2);}

/* 考勤环 */
.ring-wrap{display:flex;align-items:center;gap:30px;padding:10px 4px 4px;}
.ring-c{position:relative;width:150px;height:150px;flex:0 0 auto;}
.ring-c svg{transform:rotate(-90deg);}
.ring-c .rt{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;}
.ring-c .rt .big{font-size:27px;font-weight:800;letter-spacing:-.03em;line-height:1;}
.ring-c .rt .sm{font-size:10.5px;color:var(--txt-3);margin-top:6px;letter-spacing:.1em;font-weight:600;}
.ring-info .k{font-size:11px;color:var(--txt-4);letter-spacing:.08em;font-weight:700;text-transform:uppercase;}
.ring-info .v{font-size:15px;font-weight:600;color:#fff;margin-top:3px;}
.ring-info .v em{font-style:normal;color:var(--txt-3);font-size:12px;font-weight:500;margin-left:6px;}
.ring-info>div+div{margin-top:14px;padding-top:14px;border-top:1px solid rgba(255,255,255,.06);}

/* 网盘 */
.file{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:11px;transition:background .2s;}
.file:hover{background:rgba(255,255,255,.035);}
.f-ico-sm{width:32px;height:32px;border-radius:9px;display:flex;align-items:center;justify-content:center;flex:0 0 auto;font-size:10px;font-weight:700;color:#fff;}
.f-pdf{background:rgba(244,0,0,.18);color:#FF6A52;}
.f-doc{background:rgba(31,58,138,.3);color:#7FA4FF;}
.f-xls{background:rgba(14,138,80,.22);color:#3BC583;}
.f-zip{background:rgba(201,118,10,.2);color:#E0A043;}
.bar-s{height:4px;border-radius:3px;background:rgba(255,255,255,.09);overflow:hidden;margin-top:7px;}
.bar-s i{display:block;height:100%;background:var(--grad);border-radius:3px;}

/* 工资条 */
.pay{
  border-radius:14px;border:1px solid var(--line-2);background:rgba(255,255,255,.025);
  padding:18px;position:relative;overflow:hidden;
}
.pay::after{
  content:"已加密";position:absolute;right:-26px;top:14px;transform:rotate(38deg);
  background:rgba(244,0,0,.14);color:#FF6A52;font-size:9px;font-weight:800;letter-spacing:.14em;
  padding:3px 30px;border-top:1px solid rgba(244,0,0,.2);border-bottom:1px solid rgba(244,0,0,.2);
}
.pay-h{display:flex;align-items:baseline;justify-content:space-between;padding-bottom:14px;border-bottom:1px dashed rgba(255,255,255,.12);}
.pay-h .t{font-size:13px;font-weight:600;color:var(--txt-2);}
.pay-h .a{font-size:26px;font-weight:800;letter-spacing:-.03em;}
.kv{display:flex;justify-content:space-between;font-size:12.5px;padding:7px 0;color:var(--txt-3);}
.kv b{color:#fff;font-weight:600;font-variant-numeric:tabular-nums;}

/* 公告 */
.notice-card{border-radius:13px;border:1px solid var(--line-2);overflow:hidden;background:rgba(255,255,255,.02);}
.notice-h{padding:14px 16px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;}
.notice-b{padding:16px;font-size:12.5px;line-height:1.8;color:var(--txt-2);}
.notice-f{display:flex;align-items:center;gap:8px;padding:12px 16px;border-top:1px solid var(--line);background:rgba(255,255,255,.02);}
.read-stat{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--txt-3);}
.read-stat b{color:#3BC583;}

/* 审批流程 */
.flow{display:flex;flex-direction:column;gap:0;position:relative;}
.fl-node{display:flex;gap:13px;position:relative;padding-bottom:20px;}
.fl-node:last-child{padding-bottom:0;}
.fl-node::before{content:"";position:absolute;left:12px;top:26px;bottom:0;width:1.5px;background:rgba(255,255,255,.10);}
.fl-node:last-child::before{display:none;}
.fl-node.done::before{background:rgba(244,0,0,.45);}
.fl-dot{
  width:25px;height:25px;border-radius:50%;flex:0 0 auto;display:flex;align-items:center;justify-content:center;
  border:1.5px solid rgba(255,255,255,.16);background:#0B0B0C;color:var(--txt-4);font-size:10px;font-weight:700;
}
.fl-node.done .fl-dot{background:var(--grad);border-color:transparent;color:#fff;}
.fl-node.cur .fl-dot{border-color:var(--red);color:var(--red-2);box-shadow:0 0 0 4px rgba(244,0,0,.12);}
.fl-t{font-size:13px;font-weight:600;color:#fff;line-height:1.3;padding-top:3px;}
.fl-s{font-size:11.5px;color:var(--txt-3);margin-top:3px;}

/* ---------- 方案页 ---------- */
.sol-card{
  border-radius:26px;border:1px solid var(--line);overflow:hidden;position:relative;
  background:linear-gradient(170deg,#131317 0%,#0C0C0E 100%);
}
.sol-head{padding:44px 44px 0;display:flex;align-items:flex-start;gap:24px;justify-content:space-between;}
.sol-no{font-size:64px;font-weight:800;letter-spacing:-.05em;line-height:.9;
  background:linear-gradient(180deg,rgba(255,255,255,.16),rgba(255,255,255,.02));
  -webkit-background-clip:text;background-clip:text;color:transparent;}
.sol-head h2{font-size:clamp(24px,2.4vw,30px);margin-bottom:10px;}
.sol-head .sub{font-size:14.5px;color:var(--txt-2);line-height:1.7;max-width:520px;}
.sol-body{padding:32px 44px 44px;display:grid;grid-template-columns:1fr 1fr;gap:36px;}
.sb-col h5{font-size:11.5px;font-weight:700;letter-spacing:.14em;color:var(--txt-4);text-transform:uppercase;margin-bottom:14px;}
.sb-col .pain{font-size:13.5px;line-height:1.75;color:var(--txt-3);}
.sb-col .pain li{padding-left:15px;position:relative;margin-bottom:9px;}
.sb-col .pain li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:rgba(244,0,0,.6);}
.sol-mods{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px;}
.sol-mod{font-size:11.5px;color:var(--txt-2);padding:5px 10px;border-radius:7px;background:rgba(255,255,255,.05);border:1px solid var(--line);}
.sol-quote{
  grid-column:1/-1;border-left:2px solid rgba(244,0,0,.5);padding:4px 0 4px 18px;
  font-size:14.5px;line-height:1.8;color:var(--txt-2);
}
.sol-quote b{color:#fff;font-weight:600;}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start;}
.pcard{
  position:relative;border-radius:24px;border:1px solid var(--line);padding:36px 32px 32px;
  background:linear-gradient(180deg,#121216,#0C0C0E);display:flex;flex-direction:column;
  transition:transform .3s var(--ease),border-color .3s,box-shadow .3s;
}
.pcard:hover{transform:translateY(-3px);border-color:var(--line-2);}
.pcard.pro{
  border-color:rgba(244,0,0,.42);
  background:linear-gradient(180deg,#1A0E0E 0%,#0F0B0B 55%,#0C0C0E 100%);
  box-shadow:0 30px 70px -34px rgba(244,0,0,.55);transform:translateY(-8px);
}
.pcard.pro:hover{transform:translateY(-11px);}
.p-badge-top{
  position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  height:25px;padding:0 14px;border-radius:100px;background:var(--grad);color:#fff;
  font-size:11px;font-weight:700;letter-spacing:.06em;display:flex;align-items:center;white-space:nowrap;
  box-shadow:0 8px 20px -8px rgba(244,0,0,.8);
}
.pname{font-size:15px;font-weight:700;letter-spacing:.01em;color:var(--txt-2);}
.pdesc{font-size:13px;color:var(--txt-4);margin-top:6px;min-height:20px;}
.pamt{display:flex;align-items:flex-end;gap:6px;margin:22px 0 4px;min-height:64px;}
.pamt .cur{font-size:19px;font-weight:600;color:var(--txt-2);margin-bottom:8px;}
.pamt .n{font-size:46px;font-weight:800;letter-spacing:-.04em;line-height:.9;font-variant-numeric:tabular-nums;}
.pamt .per{font-size:12.5px;color:var(--txt-4);margin-bottom:7px;}
.pnote{font-size:12px;color:var(--txt-4);min-height:34px;line-height:1.5}
.pcard .btn{margin:26px 0 24px;}
.pfeat{display:flex;flex-direction:column;gap:11px;border-top:1px solid var(--line);padding-top:22px;}
.pfeat li{display:flex;gap:9px;font-size:13.2px;color:var(--txt-2);line-height:1.55;}
.pfeat svg{flex:0 0 auto;margin-top:3px;color:#FF5C3A;}
.pfeat li.mut{color:var(--txt-4);}
.pfeat li.mut svg{color:#3A3A42;}

/* 对比表 */
.tbl-wrap{margin-top:64px;border:1px solid var(--line);border-radius:20px;overflow:hidden;background:rgba(255,255,255,.012);}
.tbl-scroll{overflow-x:auto;}
.tbl-hint{display:none;font-size:12px;color:var(--txt-4);margin-bottom:10px;text-align:right;}
@media (max-width:720px){.tbl-hint{display:block;}}
table.cmp{width:100%;border-collapse:collapse;min-width:760px;font-size:13.5px;}
.cmp th,.cmp td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line);}
.cmp thead th{
  font-size:11.5px;font-weight:700;letter-spacing:.12em;color:var(--txt-4);text-transform:uppercase;
  background:rgba(255,255,255,.03);position:sticky;top:0;
}
.cmp thead th:first-child{width:26%;}
.cmp td:not(:first-child),.cmp th:not(:first-child){text-align:center;width:24.6%;}
.cmp tbody tr:hover{background:rgba(255,255,255,.022);}
.cmp td:first-child{color:#fff;font-weight:500;}
.cmp td{color:var(--txt-2);}
.cmp .grp td{background:rgba(244,0,0,.045);color:var(--red-2);font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:11px 20px;}
.cmp .col-pro{background:rgba(244,0,0,.03);}
.cmp .yes{color:#FF5C3A;}
.cmp .no{color:#3A3A42;}
.cmp tbody tr:last-child td{border-bottom:none;}

/* FAQ */
.faq{max-width:860px;margin:0 auto;}
.faq details{
  border-bottom:1px solid var(--line);padding:0;
}
.faq details:first-child{border-top:1px solid var(--line);}
.faq summary{
  display:flex;align-items:center;gap:16px;padding:22px 4px;cursor:pointer;list-style:none;
  font-size:15.5px;font-weight:600;color:#fff;transition:color .2s;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--red-2);}
.faq summary .ic{
  margin-left:auto;flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--line-2);display:flex;align-items:center;justify-content:center;
  position:relative;transition:border-color .25s,background .25s,transform .3s var(--ease);
}
.faq summary .ic::before,.faq summary .ic::after{
  content:"";position:absolute;background:var(--txt-2);border-radius:2px;transition:opacity .25s,background .25s;
}
.faq summary .ic::before{width:9px;height:1.4px;}
.faq summary .ic::after{width:1.4px;height:9px;}
.faq details[open] summary .ic{background:var(--red);border-color:var(--red);transform:rotate(90deg);}
.faq details[open] summary .ic::before,.faq details[open] summary .ic::after{background:#fff;}
.faq details[open] summary .ic::after{opacity:0;}
.faq .ans{padding:0 46px 24px 4px;font-size:14.2px;line-height:1.8;color:var(--txt-2);}
.help-main .faq .ans{padding:0 34px 22px 2px;}
.faq .ans p+p{margin-top:10px;}

/* ---------- 下载页 ---------- */
.dl-hero{display:grid;grid-template-columns:1fr .82fr;gap:60px;align-items:center;}
.dl-app{display:flex;align-items:center;gap:16px;margin-bottom:26px;}
.dl-app img{width:64px;height:64px;border-radius:17px;box-shadow:0 12px 30px -12px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.12);}
.dl-app .n{font-size:20px;font-weight:800;letter-spacing:-.02em;}
.dl-app .s{font-size:12.5px;color:var(--txt-3);margin-top:2px;}
.dl-btns{display:flex;flex-direction:column;gap:12px;max-width:400px;}
.dl-btn{
  display:flex;width:100%;align-items:center;gap:14px;padding:15px 20px;border-radius:15px;
  border:1px solid var(--line-2);background:rgba(255,255,255,.035);transition:.3s var(--ease);
}
.dl-btn:hover{background:rgba(255,255,255,.07);border-color:var(--line-3);transform:translateX(3px);}
.dl-btn .ic{width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;background:rgba(244,0,0,.14);color:#FF5C3A;flex:0 0 auto;}
.dl-btn .tx{flex:1;min-width:0;}
.dl-btn .t1{display:block;font-size:14.5px;font-weight:600;color:#fff;line-height:1.35;}
.dl-btn .t2{display:block;font-size:11.5px;color:var(--txt-3);margin-top:2px;line-height:1.4;}
.dl-btn .go{color:var(--txt-4);}
.dl-btn.dis{opacity:.55;cursor:not-allowed;}
.dl-btn.dis:hover{transform:none;background:rgba(255,255,255,.035);border-color:var(--line-2);}
.dl-meta{display:flex;gap:26px;margin-top:26px;font-size:12px;color:var(--txt-4);flex-wrap:wrap;}
.dl-meta b{color:var(--txt-2);font-weight:600;}

/* 安装步骤 */
.inst{counter-reset:st;display:flex;flex-direction:column;gap:0;}
.inst li{
  counter-increment:st;position:relative;padding:0 0 26px 46px;
  font-size:14px;line-height:1.7;color:var(--txt-2);
}
.inst li::before{
  content:counter(st);position:absolute;left:0;top:-2px;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line-2);display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:var(--txt-2);background:rgba(255,255,255,.03);
}
.inst li::after{content:"";position:absolute;left:13.5px;top:30px;bottom:8px;width:1px;background:var(--line);}
.inst li:last-child{padding-bottom:0;}
.inst li:last-child::after{display:none;}
.inst b{color:#fff;}

/* 更新日志 */
.rel{border-left:1px solid var(--line);padding-left:26px;position:relative;}
.rel-item{position:relative;padding-bottom:30px;}
.rel-item:last-child{padding-bottom:0;}
.rel-item::before{
  content:"";position:absolute;left:-32px;top:7px;width:11px;height:11px;border-radius:50%;
  background:#0B0B0C;border:2px solid var(--txt-4);
}
.rel-item.new::before{border-color:var(--red);background:var(--red);box-shadow:0 0 0 4px rgba(244,0,0,.14);}
.rel-v{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;color:#fff;}
.rel-d{font-size:12px;color:var(--txt-4);margin:4px 0 10px;}
.rel-item ul li{font-size:13.5px;color:var(--txt-2);line-height:1.75;padding-left:14px;position:relative;}
.rel-item ul li::before{content:"";position:absolute;left:0;top:10px;width:4px;height:4px;border-radius:50%;background:var(--txt-4);}

/* ---------- 关于页 ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start;}
.about-grid p{font-size:15.5px;line-height:1.85;margin-bottom:16px;}
.about-facts{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:rgba(255,255,255,.015);}
.af{display:flex;justify-content:space-between;gap:20px;padding:17px 22px;border-bottom:1px solid var(--line);font-size:13.5px;}
.af:last-child{border-bottom:none;}
.af .k{color:var(--txt-3);}
.af .v{color:#fff;font-weight:600;text-align:right;}
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.value{padding:30px 28px;border-radius:var(--r);border:1px solid var(--line);background:rgba(255,255,255,.018);}
.value .vi{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(244,0,0,.12);color:#FF5C3A;margin-bottom:18px;}
.value h3{font-size:17px;margin-bottom:8px;}
.value p{font-size:13.5px;line-height:1.7;}
.tl-list{position:relative;padding-left:0;}
.tl-y{display:flex;gap:32px;padding:22px 0;border-top:1px solid var(--line);}
.tl-y .y{font-size:15px;font-weight:700;color:var(--red-2);width:88px;flex:0 0 auto;font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.tl-y .c{font-size:14px;color:var(--txt-2);line-height:1.7;}
.tl-y .c b{color:#fff;display:block;margin-bottom:4px;font-weight:600;}
.qual{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.qual-c{
  border:1px dashed rgba(255,255,255,.16);border-radius:var(--r);padding:30px 24px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:10px;
  min-height:150px;background:rgba(255,255,255,.012);
}
.qual-c .qi{width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.05);display:flex;align-items:center;justify-content:center;color:var(--txt-3);}
.qual-c .qt{font-size:13.5px;font-weight:600;color:var(--txt-2);}
.qual-c .qs{font-size:11.5px;color:var(--txt-4);}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.cc{padding:28px;border-radius:var(--r);border:1px solid var(--line);background:rgba(255,255,255,.018);}
.cc .ci{width:36px;height:36px;border-radius:10px;background:rgba(244,0,0,.1);color:#FF5C3A;display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.cc .ck{font-size:11.5px;font-weight:700;letter-spacing:.1em;color:var(--txt-4);text-transform:uppercase;}
.cc .cv{font-size:15px;font-weight:600;color:#fff;margin-top:6px;word-break:break-all;}
.cc .cs{font-size:12px;color:var(--txt-3);margin-top:4px;}

/* ---------- 法务页 ---------- */
.legal{display:grid;grid-template-columns:236px 1fr;gap:64px;align-items:start;}
.legal-toc{position:sticky;top:calc(var(--nav-h) + 28px);}
.legal-toc .th{font-size:11px;font-weight:700;letter-spacing:.14em;color:var(--txt-4);text-transform:uppercase;margin-bottom:14px;}
.legal-toc a{
  display:block;font-size:13px;color:var(--txt-3);padding:6px 0 6px 13px;border-left:1px solid var(--line);
  transition:.2s;line-height:1.5;
}
.legal-toc a:hover{color:#fff;border-left-color:var(--red);}
.doc-meta{display:flex;gap:22px;flex-wrap:wrap;font-size:12.5px;color:var(--txt-4);padding-bottom:28px;border-bottom:1px solid var(--line);margin-bottom:36px;}
.doc-meta b{color:var(--txt-2);font-weight:600;}
.doc h2{font-size:21px;margin:44px 0 16px;letter-spacing:-.01em;scroll-margin-top:calc(var(--nav-h) + 28px);}
.doc h2:first-of-type{margin-top:0;}
.doc h3{font-size:16px;margin:26px 0 10px;color:#fff;}
.doc p{font-size:14.5px;line-height:1.92;margin-bottom:14px;color:var(--txt-2);}
.doc ul{margin:0 0 16px 0;}
.doc ul li{font-size:14.5px;line-height:1.9;color:var(--txt-2);padding-left:18px;position:relative;margin-bottom:4px;}
.doc ul li::before{content:"";position:absolute;left:2px;top:12px;width:4px;height:4px;border-radius:50%;background:rgba(244,0,0,.6);}
.doc ol{counter-reset:o;margin:0 0 16px;}
.doc ol li{counter-increment:o;font-size:14.5px;line-height:1.9;color:var(--txt-2);padding-left:24px;position:relative;margin-bottom:6px;}
.doc ol li::before{content:counter(o) ".";position:absolute;left:0;color:var(--txt-3);font-weight:600;font-size:12.5px;}
.doc strong{color:#fff;font-weight:600;}
.doc .note{
  border-left:2px solid rgba(244,0,0,.5);background:rgba(244,0,0,.045);
  padding:15px 18px;border-radius:0 10px 10px 0;margin:18px 0 22px;
}
.doc .note p{margin:0;font-size:13.8px;color:var(--txt-2);}
.doc table{width:100%;border-collapse:collapse;font-size:13px;margin:8px 0 20px;}
.doc table th,.doc table td{border:1px solid var(--line);padding:11px 13px;text-align:left;vertical-align:top;}
.doc table th{background:rgba(255,255,255,.04);color:var(--txt-2);font-weight:600;font-size:12px;letter-spacing:.03em;}
.doc table td{color:var(--txt-2);line-height:1.7;}
.doc .end{margin-top:44px;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--txt-4);}

/* ---------- 帮助中心 ---------- */
.help-search{
  display:flex;align-items:center;gap:11px;height:56px;border-radius:15px;
  border:1px solid var(--line-2);background:rgba(255,255,255,.04);padding:0 20px;max-width:560px;
  transition:border-color .25s,box-shadow .25s;
}
.help-search:focus-within{border-color:rgba(244,0,0,.5);box-shadow:0 0 0 4px rgba(244,0,0,.09);}
.help-search input{
  flex:1;background:none;border:none;outline:none;color:#fff;font-size:14.5px;
  font-family:inherit;
}
.help-search input::placeholder{color:var(--txt-4);}
.help-empty{display:none;padding:44px 0;text-align:center;color:var(--txt-3);font-size:14px;}
.help-empty.show{display:block;}
.faq-grp{
  margin-bottom:16px;border:1px solid var(--line);border-radius:var(--r);
  background:rgba(255,255,255,.016);padding:0 22px;
}
.faq-grp .gt{
  font-size:11.5px;font-weight:700;letter-spacing:.14em;color:var(--txt-4);
  text-transform:uppercase;padding:18px 0 6px;
}
.faq-grp details{border-bottom:1px solid var(--line);}
.faq-grp details:last-child{border-bottom:none;}
.faq-grp summary{padding:17px 2px;font-size:15px;}
.faq-grp .ans{padding:0 34px 20px 2px;}

.help-layout{display:grid;grid-template-columns:minmax(0,1fr) 306px;gap:52px;align-items:start;}
.help-main .faq{max-width:none;margin:0;}
.help-side{
  position:sticky;top:calc(var(--nav-h) + 28px);
  border:1px solid var(--line-2);border-radius:var(--r-lg);padding:26px 24px;
  background:linear-gradient(170deg,#16161C 0%,#0E0E11 100%);
  box-shadow:var(--sh);
}
.help-side h4{font-size:15.5px;margin-bottom:8px;}
.help-side>p{font-size:12.5px;color:var(--txt-3);line-height:1.7;}
.hs-item{display:flex;align-items:flex-start;gap:10px;padding:13px 0;border-top:1px solid var(--line);}
.hs-item:first-of-type{margin-top:16px;}
.hs-item .hi{width:28px;height:28px;border-radius:9px;background:rgba(244,0,0,.12);color:#FF5C3A;display:flex;align-items:center;justify-content:center;flex:0 0 auto;}
.hs-item .hk{font-size:10.5px;font-weight:700;letter-spacing:.1em;color:var(--txt-4);text-transform:uppercase;}
.hs-item .hv{font-size:13px;font-weight:600;color:#fff;margin-top:2px;word-break:break-all;}
.hs-item .hs{font-size:11px;color:var(--txt-4);margin-top:2px;}
.help-side .btn{margin-top:18px;}
.faq .hide{display:none;}
.support{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}

/* ---------- 404 ---------- */
.e404{
  min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:120px 24px 80px;position:relative;overflow:hidden;isolation:isolate;
}
.e404 .code{
  font-size:clamp(110px,20vw,220px);font-weight:800;letter-spacing:-.06em;line-height:.85;
  background:linear-gradient(180deg,#fff 0%,#5A0E0E 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  position:relative;z-index:1;
}
.e404 h1{font-size:clamp(22px,2.6vw,30px);margin:28px 0 14px;position:relative;z-index:1;}
.e404 p{max-width:420px;font-size:15px;line-height:1.75;position:relative;z-index:1;}
.e404 .btns{display:flex;gap:12px;margin-top:34px;position:relative;z-index:1;flex-wrap:wrap;justify-content:center;}

/* ---------- 滚动揭示 ---------- */
@media print{.js .reveal{opacity:1 !important;transform:none !important;}}
/* 不用 opacity 隐藏内容：任何情况下正文都必须可读（截图/打印/JS 异常） */
.js .reveal{opacity:1;transform:translateY(18px);transition:transform .75s var(--ease);}
.js .reveal.in{opacity:1;transform:none;}
.js .reveal.d1{transition-delay:.07s}
.js .reveal.d2{transition-delay:.14s}
.js .reveal.d3{transition-delay:.21s}
.js .reveal.d4{transition-delay:.28s}
.js .reveal.d5{transition-delay:.35s}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .js .reveal{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .inst-grid,.tl-grid{grid-template-columns:1fr !important;gap:42px !important;}
  .help-layout{grid-template-columns:1fr;gap:32px;}
  .help-side{position:static;order:2;}
  .nav-links{display:none;}
  .nav-right{margin-left:auto;}
  .burger{display:flex;margin-left:10px;}
  .nav-in{gap:0;}
  .hero{min-height:auto;padding-top:calc(var(--nav-h) + 56px);}
  .hero-in{grid-template-columns:1fr;gap:64px;}
  .hero-copy{max-width:640px;}
  .hero-sub{max-width:560px;}
  .stage{min-height:600px;}
  .sec2{grid-template-columns:1fr;gap:44px;}
  .dark-panel{padding:48px 32px;}
  .grid-9{grid-template-columns:repeat(2,1fr);}
  .stats{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
  .sol-strip{grid-template-columns:repeat(2,1fr);}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto;}
  .pcard.pro{transform:none;}
  .pcard.pro:hover{transform:translateY(-3px);}
  .fmod{grid-template-columns:1fr;gap:40px;padding:64px 0;}
  .fmod:nth-child(even) .fmod-txt{order:1;}
  .fmod:nth-child(even) .fmod-vis{order:2;}
  .sol-body{grid-template-columns:1fr;gap:26px;}
  .dl-hero{grid-template-columns:1fr;gap:52px;}
  .about-grid{grid-template-columns:1fr;gap:44px;}
  .values{grid-template-columns:1fr;}
  .qual{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .support{grid-template-columns:1fr;}
  .legal{grid-template-columns:1fr;gap:32px;}
  .legal-toc{position:static;display:none;}
  .foot-top{grid-template-columns:1fr 1fr;gap:36px;}
  .foot-brand{grid-column:1/-1;max-width:none;}
  .cta-band{padding:56px 28px;}
  .wall{gap:36px 40px;}
  .wall span{font-size:15px;}
}

@media (max-width:720px){
  :root{--nav-h:64px;}
  .wrap,.hero-in,.nav-in{padding-left:20px;padding-right:20px;}
  .sec{padding:76px 0;}
  .sec-sm{padding:56px 0;}
  .sec-head{margin-bottom:44px;}
  .sec-head p{font-size:15.5px;}
  .hero{padding-top:calc(var(--nav-h) + 40px);padding-bottom:64px;}
  .hero h1{font-size:clamp(34px,9vw,44px);}
  .hero-sub{font-size:15.5px;margin-top:20px;}
  .hero-cta{gap:10px;margin-top:30px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .hero-meta{gap:14px;font-size:12px;}
  .stage{min-height:auto;padding:34px 0 10px;}
  .dev{width:270px;height:556px;border-radius:38px;padding:7px;}
  .dev-scr{border-radius:31px;}
  .dev-notch{width:78px;height:20px;top:6px;}
  .float-card{padding:10px 12px;border-radius:13px;transform:scale(.9);}
  .fc-a{display:none;}
  .fc-b{bottom:-72px;right:-2px;}
  .stage-glow{width:340px;height:340px;filter:blur(34px);}
  .stage-ring{width:300px;height:300px;}
  .stage-ring.r2{width:400px;height:400px;}
  .stage-ring.r3{display:none;}
  .grid-9{grid-template-columns:1fr;gap:14px;}
  .fcard{padding:24px 22px 22px;}
  .stats{grid-template-columns:1fr 1fr;}
  .stat{padding:24px 20px;}
  .sol-strip{grid-template-columns:1fr 1fr;}
  .sol-mini{min-height:150px;padding:18px;}
  .sol-mini .sn{top:16px;left:18px;}
  .step{padding:26px 22px;}
  .dark-panel{padding:36px 22px;border-radius:22px;}
  .sec2 h2{font-size:26px;}
  .cta-band{padding:46px 22px;border-radius:22px;}
  .cta-band h2{font-size:26px;}
  .cta-band p{font-size:14.5px;}
  .cta-band .btns .btn{width:100%;}
  .foot{padding:52px 0 0;}
  .foot-top{grid-template-columns:1fr 1fr;gap:30px 20px;padding-bottom:36px;}
  .foot-col h5{margin-bottom:10px;}
  .foot-bot{flex-direction:column;align-items:flex-start;gap:12px;}
  .phead{padding:calc(var(--nav-h) + 52px) 0 48px;}
  .phead p{font-size:15.5px;}
  .fmod{padding:52px 0;gap:32px;}
  .panel{padding:18px;border-radius:var(--r);}
  .ring-wrap{flex-direction:column;align-items:flex-start;gap:20px;}
  .sol-head{padding:28px 22px 0;flex-direction:column;gap:14px;position:relative;padding-right:76px;}
  .sol-no{position:absolute;top:20px;right:22px;font-size:38px;}
  .sol-body{padding:24px 22px 30px;}
  .pcard{padding:30px 24px 26px;}
  .pamt .n{font-size:40px;}
  .tbl-wrap{border-radius:16px;}
  .cmp th,.cmp td{padding:12px 14px;}
  .faq summary{font-size:14.5px;padding:18px 2px;gap:12px;}
  .faq .ans{padding:0 12px 20px 2px;font-size:13.6px;}
  .doc h2{font-size:19px;margin-top:36px;}
  .doc p,.doc ul li,.doc ol li{font-size:14px;line-height:1.85;}
  .doc table{font-size:12px;}
  .doc table th,.doc table td{padding:9px 10px;}
  .doc .tbl-wrap{overflow-x:auto;display:block;}
  .about-grid p{font-size:15px;}
  .values{gap:14px;}
  .value{padding:24px 22px;}
  .tl-y{flex-direction:column;gap:6px;padding:18px 0;}
  .tl-y .y{width:auto;}
  .qual-c{min-height:120px;padding:24px 20px;}
  .e404{padding-top:100px;}
  .e404 .hero-bg::before{width:560px;height:560px;right:-240px;top:-260px;opacity:.75;}
  .help-search{height:50px;}
  .faq-grp{padding:0 16px;}
  .faq-grp summary{font-size:14.5px;padding:15px 0;}
  .help-main .faq .ans{padding:0 8px 18px 0;}
  .help-side{padding:22px 20px;}
  .wall{gap:22px 28px;}
  .wall span{font-size:13.5px;}
  .brand .bt{display:none;}
}

@media (max-width:400px){
  .grid-9{grid-template-columns:1fr;}
  .sol-strip{grid-template-columns:1fr;}
  .hero-meta{font-size:11.5px;gap:10px;}
  .dev{width:252px;height:520px;}
  .float-card{transform:scale(.85);}
}