/* ============================================================
   鼎盛鹏飞 · 办公室保洁服务
   Design system v2 — editorial / high-contrast / restrained motion
   ============================================================ */

:root{
  /* 色彩 */
  --paper:#F3F1EB;
  --paper-2:#EAE7DE;
  --card:#FBFAF7;
  --ink:#0E1113;
  --ink-2:#4B5350;
  --ink-3:#666D68;
  --deep:#0F2E24;
  --deep-2:#123A2D;
  --deep-3:#0A211A;
  --accent:#C6F24E;
  --accent-2:#9FD82F;
  --accent-ink:#4E7A1C;
  --line:#D8D4C8;
  --line-2:#C7C2B4;
  --line-dark:rgba(255,255,255,.13);

  /* 排版 */
  --sans:"PingFang SC","HarmonyOS Sans SC","MiSans","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --latin:"Helvetica Neue",Inter,Arial,system-ui,sans-serif;

  /* 节奏 */
  --max:1240px;
  --gut:32px;
  --r:2px;
  --ease:cubic-bezier(.16,1,.3,1);
  --ease-2:cubic-bezier(.65,.05,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.22;text-wrap:balance}
p{margin:0;text-wrap:pretty}
.lede,.sub,.band-line{text-wrap:pretty}
ul,ol,dl{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--accent);color:var(--ink)}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px;border-radius:1px}

.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gut)}
@media(max-width:720px){:root{--gut:20px}}

.skip{position:absolute;left:-9999px;top:0;z-index:200;background:var(--ink);color:#fff;padding:12px 18px}
.skip:focus{left:12px;top:12px}

/* ---------- 氛围层 ---------- */
.grain{
  position:fixed;inset:0;z-index:120;pointer-events:none;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode:multiply;
}

/* ---------- 自定义光标 ---------- */
.cursor{position:fixed;top:0;left:0;z-index:130;pointer-events:none;display:none;opacity:0;transition:opacity .3s}
.cursor.is-on{opacity:1}
.cursor-dot,.cursor-ring{position:absolute;border-radius:50%;transform:translate(-50%,-50%)}
.cursor-dot{width:5px;height:5px;background:var(--ink)}
.cursor-ring{
  width:34px;height:34px;border:1px solid rgba(14,17,19,.35);
  transition:width .3s var(--ease),height .3s var(--ease),background .3s var(--ease),border-color .3s var(--ease);
}
.cursor.is-hot .cursor-ring{width:60px;height:60px;background:rgba(198,242,78,.22);border-color:transparent}
.cursor.is-deep .cursor-dot{background:var(--accent)}
@media(hover:hover) and (pointer:fine){
  .cursor{display:block}
  body{cursor:none}
  a,button,summary,label,select,input,textarea{cursor:none}
}

/* ---------- 进度条 ---------- */
.progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:140;background:transparent}
.progress i{display:block;height:100%;width:0;background:var(--accent-2);transform-origin:0 50%}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:110;
  transition:background .5s var(--ease),border-color .5s var(--ease),backdrop-filter .5s;
  border-bottom:1px solid transparent;
}
.nav.solid{
  background:rgba(243,241,235,.86);
  backdrop-filter:saturate(180%) blur(16px);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom-color:var(--line);
}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.brand{display:flex;align-items:baseline;gap:10px;white-space:nowrap}
.brand .mark{font-size:18px;font-weight:800;letter-spacing:.01em}
.brand .sub{font-size:11px;font-weight:500;letter-spacing:.14em;color:var(--ink-3)}
.nav:not(.solid) .brand .mark,.nav:not(.solid) .navlinks a{color:#fff}
.nav:not(.solid) .brand .sub{color:rgba(255,255,255,.55)}
.nav:not(.solid) .nav-tel{color:rgba(255,255,255,.8)}
.navlinks{display:flex;gap:26px;font-size:14px;font-weight:500}
.navlinks a{position:relative;padding:4px 0;opacity:.9;transition:opacity .3s}
.navlinks a::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:currentColor;transition:width .45s var(--ease)}
.navlinks a:hover{opacity:1}
.navlinks a:hover::after{width:100%}
.navlinks a.is-current{opacity:1}
.navlinks a.is-current::after{width:100%}
.nav-right{display:flex;align-items:center;gap:18px}
.nav-tel{display:flex;align-items:center;gap:7px;font-family:var(--latin);font-size:14px;font-weight:600;letter-spacing:.02em;color:var(--ink-2)}
.nav-tel .dot{width:6px;height:6px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 0 4px rgba(159,216,47,.18)}
.burger{display:none;width:40px;height:40px;position:relative}
.burger span{position:absolute;left:9px;right:9px;height:1.5px;background:currentColor;transition:transform .45s var(--ease),opacity .3s}
.nav:not(.solid) .burger{color:#fff}
.burger span:nth-child(1){top:16px}
.burger span:nth-child(2){top:24px}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(4px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){transform:translateY(-4px) rotate(-45deg)}
@media(max-width:1040px){.navlinks{display:none}.burger{display:block}}
@media(max-width:520px){.nav-tel{display:none}}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:105;background:var(--deep);color:#fff;
  display:flex;flex-direction:column;justify-content:center;gap:auto;
  padding:100px var(--gut) 40px;
  clip-path:inset(0 0 100% 0);transition:clip-path .7s var(--ease);
}
.drawer.open{clip-path:inset(0 0 0 0)}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{
  display:flex;align-items:baseline;gap:16px;
  font-size:clamp(24px,6vw,34px);font-weight:800;letter-spacing:-.02em;
  padding:14px 0;border-bottom:1px solid var(--line-dark);
}
.drawer nav a em{font-family:var(--latin);font-style:normal;font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--accent)}
.drawer-foot{margin-top:36px;display:flex;flex-direction:column;gap:12px}
.drawer-foot p{font-size:13px;color:rgba(255,255,255,.55)}

/* ---------- 按钮 ---------- */
.btn{
  --bh:52px;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:var(--bh);padding:0 24px;border-radius:var(--r);
  font-size:14.5px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:transform .35s var(--ease),background .35s var(--ease),color .35s var(--ease),border-color .35s var(--ease);
}
.btn-solid{background:var(--ink);color:#fff}
.btn-solid:hover{background:var(--deep-2);transform:translateY(-2px)}
.btn-ghost{border:1px solid var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn .arrow{transition:transform .4s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.btn-block{width:100%}
.nav-cta{--bh:42px;padding:0 18px;font-size:13.5px;background:var(--accent);color:var(--ink)}
.nav-cta:hover{background:var(--accent-2)}
@media(max-width:640px){.nav-cta{--bh:38px;padding:0 14px;font-size:13px}}

/* ---------- Hero ---------- */
.hero{
  position:relative;background:var(--deep-3);color:#fff;overflow:hidden;
  padding:172px 0 96px;min-height:100svh;display:flex;align-items:center;
}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.glow{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5}
.glow.g1{width:52vw;height:52vw;left:-12vw;top:-16vw;background:radial-gradient(circle,rgba(198,242,78,.30),transparent 62%)}
.glow.g2{width:46vw;height:46vw;right:-14vw;bottom:-18vw;background:radial-gradient(circle,rgba(37,120,92,.55),transparent 64%)}
.grid-lines{
  position:absolute;inset:0;opacity:.16;
  background-image:linear-gradient(to right,var(--line-dark) 1px,transparent 1px);
  background-size:calc(100% / 6) 100%;
}
.hero-in{
  position:relative;z-index:2;width:100%;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,370px);
  gap:clamp(28px,4vw,60px);align-items:center;
}
.hero-copy{min-width:0}
.hero-media{
  position:relative;margin:0;aspect-ratio:2/3;max-height:62svh;
  border-radius:2px;overflow:hidden;isolation:isolate;
  box-shadow:0 40px 90px -50px rgba(0,0,0,.85),0 0 0 1px rgba(255,255,255,.06);
}
.hero-media img{width:100%;height:100%;object-fit:cover;transform:scale(1.01);transition:transform 1.4s var(--ease)}
.hero-media:hover img{transform:scale(1.055)}
.hero-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:44px 20px 16px;
  background:linear-gradient(transparent,rgba(6,20,16,.8));
  font-size:11.5px;letter-spacing:.16em;color:rgba(255,255,255,.74);
}
.hero-media figcaption span{display:block}
.kicker{display:flex;align-items:center;gap:12px;font-size:13px;letter-spacing:.16em;color:rgba(255,255,255,.62);margin-bottom:26px}
.kicker .k-line{display:inline-block;width:44px;height:1px;background:var(--accent);transform-origin:0 50%}
.display{
  font-size:clamp(34px,8.6vw,44px);line-height:1.08;letter-spacing:-.035em;
  font-weight:800;max-width:16em;
}
@media(min-width:1100px){.display{font-size:clamp(46px,5.4vw,80px);line-height:1.06}}
.display .w{display:block;overflow:hidden}
.display em{font-style:normal;color:var(--accent);position:relative}
.display em::after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:.07em;background:var(--accent);opacity:.4}
.lede{margin-top:30px;max-width:44ch;font-size:clamp(15px,1.5vw,18px);line-height:1.9;color:rgba(255,255,255,.78)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:40px}
.hero-cta .btn-solid{background:var(--accent);color:var(--ink)}
.hero-cta .btn-solid:hover{background:var(--accent-2)}
.hero-cta .btn-ghost{border-color:rgba(255,255,255,.28);color:#fff}
.hero-cta .btn-ghost:hover{border-color:#fff}
.stats{display:flex;flex-wrap:wrap;gap:0;margin-top:66px;border-top:1px solid var(--line-dark)}
.stats > div{padding:22px 40px 0 0;min-width:170px}
.stats > div + div{padding-left:40px;border-left:1px solid var(--line-dark)}
.stats dt{font-size:12px;letter-spacing:.14em;color:rgba(255,255,255,.5);margin-bottom:6px}
.stats dd{margin:0;font-family:var(--latin);font-size:clamp(22px,2.6vw,32px);font-weight:700;letter-spacing:-.01em}
.scroll-cue{
  position:absolute;left:var(--gut);bottom:30px;z-index:2;
  display:flex;align-items:center;gap:10px;
  font-size:11.5px;letter-spacing:.16em;color:rgba(255,255,255,.45);
}
.scroll-cue span{display:block;width:1px;height:38px;background:linear-gradient(var(--accent),transparent);animation:cue 2.4s var(--ease) infinite}
@keyframes cue{0%{transform:scaleY(.2);transform-origin:0 0}50%{transform:scaleY(1);transform-origin:0 0}51%{transform-origin:0 100%}100%{transform:scaleY(.2);transform-origin:0 100%}}
@media(max-width:1100px){
  .hero-in{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2;aspect-ratio:4/3;max-height:none}
  .hero-copy{order:1}
}
@media(max-width:900px){
  .hero{padding:130px 0 76px;min-height:auto}
  .stats > div{padding-right:26px}
  .stats > div + div{padding-left:26px}
  .scroll-cue{display:none}
}
@media(max-width:620px){
  .stats{display:grid;grid-template-columns:1fr 1fr;border-top:0;margin-top:46px}
  .stats > div{min-width:0;padding:18px 0 0;border-top:1px solid var(--line-dark)}
  .stats > div + div{padding-left:0;border-left:0}
  .stats > div:nth-child(3){grid-column:1 / -1}
}

/* Hero 右侧竖排信息栏 */
.hero-rail{
  position:absolute;right:var(--gut);top:50%;transform:translateY(-50%);z-index:2;
  display:flex;flex-direction:column;align-items:center;gap:18px;
  color:rgba(255,255,255,.42);font-size:11.5px;letter-spacing:.22em;
}
.hero-rail .rl{writing-mode:vertical-rl}
.hero-rail .line{width:1px;height:56px;background:linear-gradient(transparent,rgba(198,242,78,.7),transparent)}
.hero-rail a{color:rgba(255,255,255,.78);font-family:var(--latin);letter-spacing:.18em;transition:color .3s}
.hero-rail a:hover{color:var(--accent)}
@media(max-width:1560px){.hero-rail{display:none}}

/* ---------- 走马灯 ---------- */
.marquee{background:var(--accent);color:var(--ink);overflow:hidden;padding:16px 0;border-block:1px solid rgba(14,17,19,.12)}
.marquee-track{display:flex;align-items:center;gap:26px;width:max-content;animation:slide 34s linear infinite}
.marquee-track span{font-size:14.5px;font-weight:600;letter-spacing:.06em;white-space:nowrap}
.marquee-track i{color:rgba(14,17,19,.4);font-style:normal}
@keyframes slide{to{transform:translateX(-50%)}}
.marquee:hover .marquee-track{animation-play-state:paused}

/* ---------- 区块骨架 ---------- */
.sec{padding:clamp(80px,11vw,150px) 0;position:relative;scroll-margin-top:70px}
.sec-deep{background:var(--deep);color:#fff}
.sec-deep > .wrap{position:relative;z-index:2}
/* 深色板块的极暗背景图（只做质感，不抢内容） */
.sec-bg{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:.42;pointer-events:none;z-index:0;
}
.sec-deep::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,rgba(15,46,36,.72) 0%,rgba(15,46,36,.34) 45%,rgba(15,46,36,.86) 100%);
}
.sec-deep .sub{color:rgba(255,255,255,.66)}
.sec-head{max-width:760px;margin-bottom:clamp(44px,6vw,72px)}
.eyebrow{
  display:flex;align-items:center;gap:10px;
  font-family:var(--latin);font-size:12px;font-weight:600;letter-spacing:.2em;
  text-transform:uppercase;color:var(--ink-3);margin-bottom:22px;
}
.sec-deep .eyebrow{color:rgba(255,255,255,.5)}
.eyebrow em{font-style:normal;color:var(--accent-ink)}
.sec-deep .eyebrow em{color:var(--accent)}
.h2{font-size:clamp(28px,4.2vw,54px);line-height:1.16;letter-spacing:-.03em}
.sec-head .sub{margin-top:22px;font-size:clamp(14.5px,1.4vw,16.5px);line-height:1.9;color:var(--ink-2);max-width:52ch}

/* 带侧图的节标题 */
.sec-head--side{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(190px,250px);
  gap:clamp(28px,4vw,60px);max-width:none;align-items:end;
}
.head-side{margin:0;aspect-ratio:3/4;overflow:hidden;border-radius:2px;background:var(--paper-2);isolation:isolate}
.head-side img{width:100%;height:100%;object-fit:cover;transform:scale(1.01);transition:transform 1.2s var(--ease)}
.head-side:hover img{transform:scale(1.05)}
@media(max-width:880px){.sec-head--side{grid-template-columns:1fr}.head-side{display:none}}

/* ---------- 01 服务项目 ---------- */
.svc{border-top:1px solid var(--line)}
.svc-item{
  display:grid;grid-template-columns:56px clamp(220px,26vw,300px) minmax(0,1fr);
  gap:32px;align-items:start;
  padding:34px 0;border-bottom:1px solid var(--line);
  position:relative;transition:background .5s var(--ease);
}
.svc-media{
  margin:0;aspect-ratio:3/2;overflow:hidden;border-radius:2px;
  background:var(--paper-2);isolation:isolate;
}
.svc-media img{width:100%;height:100%;object-fit:cover;transform:scale(1.01);transition:transform .9s var(--ease),filter .6s var(--ease)}
.svc-item:hover .svc-media img{transform:scale(1.06)}
.svc-body{min-width:0}
.svc-item::before{
  content:"";position:absolute;left:-24px;right:-24px;top:0;bottom:0;
  background:var(--paper-2);opacity:0;transition:opacity .5s var(--ease);z-index:0;
}
.svc-item > *{position:relative;z-index:1}
.svc-item:hover::before{opacity:1}
.svc-no{font-family:var(--latin);font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--ink-3);padding-top:7px}
.svc-item h3{font-size:clamp(19px,2.1vw,25px);letter-spacing:-.025em;transition:transform .5s var(--ease)}
.svc-item:hover h3{transform:translateX(6px)}
.svc-item p{font-size:15px;line-height:1.9;color:var(--ink-2)}
.fit{
  margin-top:14px;font-size:13.5px;color:var(--ink-3);
  display:grid;grid-template-columns:auto 1fr;gap:8px 10px;align-items:baseline;
}
.fit span{
  font-size:11px;letter-spacing:.1em;padding:3px 9px;border:1px solid var(--line-2);
  border-radius:100px;color:var(--ink-2);white-space:nowrap;
}
@media(max-width:560px){
  .hero-cta .btn{flex:1 1 100%;justify-content:center}
  .brand .sub{display:none}
}
@media(max-width:860px){
  .svc-item{grid-template-columns:44px 1fr;gap:12px 16px;padding:26px 0}
  .svc-media{grid-column:2;aspect-ratio:16/9}
  .svc-body{grid-column:2}
}

/* ---------- 02 对照表 ---------- */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.cmp{width:100%;border-collapse:collapse;font-size:15px;min-width:720px}
.cmp th,.cmp td{text-align:left;padding:20px 20px;border-bottom:1px solid var(--line-dark);vertical-align:top}
.cmp thead th{
  font-size:11.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(255,255,255,.5);border-bottom-color:rgba(255,255,255,.22);padding-bottom:14px;
}
.cmp tbody th{font-size:16.5px;font-weight:700;color:#fff;white-space:nowrap}
.cmp tbody td{color:rgba(255,255,255,.74);line-height:1.8}
.cmp tbody tr{transition:background .45s var(--ease)}
.cmp tbody tr:hover{background:rgba(255,255,255,.045)}
.cmp tbody tr:hover th{color:var(--accent)}
@media(max-width:760px){
  .cmp{min-width:0;display:block}
  .cmp thead{display:none}
  .cmp tbody,.cmp tr,.cmp th,.cmp td{display:block;width:100%}
  .cmp tr{border-bottom:1px solid var(--line-dark);padding:20px 0}
  .cmp tbody th{font-size:19px;padding:0 0 12px;border:0}
  .cmp tbody td{border:0;padding:4px 0;display:flex;gap:12px}
  .cmp tbody td::before{
    content:attr(data-label);flex:0 0 84px;font-size:11.5px;letter-spacing:.1em;
    color:rgba(255,255,255,.42);padding-top:3px;
  }
}
.note{
  margin-top:34px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);
  padding-left:18px;border-left:2px solid var(--accent);
}
.note strong{color:#fff;font-weight:700}

/* ---------- 03 服务优势 ---------- */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.why-item{background:var(--paper);padding:38px 32px 42px;position:relative;transition:background .5s var(--ease)}
.why-item:hover{background:var(--card)}
.why-no{font-family:var(--latin);font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--ink-3);display:block;margin-bottom:26px}
.why-item h3{font-size:18.5px;letter-spacing:-.02em;margin-bottom:14px}
.why-item p{font-size:14.5px;line-height:1.9;color:var(--ink-2)}
.why-item::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--accent-2);
  transform:scaleX(0);transform-origin:0 50%;transition:transform .6s var(--ease);
}
.why-item:hover::after{transform:scaleX(1)}
@media(max-width:980px){.why{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.why{grid-template-columns:1fr}}

/* ---------- 作业细节横幅 ---------- */
.band{position:relative;overflow:hidden;display:flex;align-items:flex-end;background:var(--deep-3);isolation:isolate}
.band > img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62;filter:saturate(.9)}
.band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,33,26,.5) 0%,rgba(10,33,26,.72) 45%,rgba(10,33,26,.94) 100%);
}
.band-inner{position:relative;z-index:2;color:#fff;padding-top:clamp(90px,15vw,190px);padding-bottom:clamp(46px,7vw,86px)}
.band-line{font-size:clamp(28px,4.6vw,58px);font-weight:800;letter-spacing:-.035em;line-height:1.14}
.band-sub{margin-top:20px;max-width:46ch;font-size:15px;line-height:1.9;color:rgba(255,255,255,.72)}

/* ---------- 04 资质与保障 ---------- */
.qual{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,2.6vw,34px)}
.qual-card{margin:0}
.qual-img{
  display:block;width:100%;padding:0;position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:2px;background:#fff;aspect-ratio:4/3;
}
.qual-img img{width:100%;height:100%;object-fit:contain;transition:transform .7s var(--ease)}
.qual-img:hover img{transform:scale(1.03)}
.qual-zoom{
  position:absolute;right:10px;bottom:10px;font-size:11px;letter-spacing:.08em;
  background:rgba(14,17,19,.74);color:#fff;padding:5px 10px;border-radius:100px;
  opacity:0;transform:translateY(4px);
  transition:opacity .35s var(--ease),transform .35s var(--ease);
}
.qual-img:hover .qual-zoom,.qual-img:focus-visible .qual-zoom{opacity:1;transform:none}
.qual-card figcaption{margin-top:15px}
.qual-card strong{display:block;font-size:15px;letter-spacing:-.01em;margin-bottom:7px}
.qual-card figcaption span{display:block;font-size:12.5px;line-height:1.75;color:var(--ink-3)}
@media(max-width:900px){.qual{grid-template-columns:1fr 1fr}.qual-card:first-child{grid-column:1 / -1}}
@media(max-width:600px){.qual{grid-template-columns:1fr}}
.qual--portrait .qual-img{aspect-ratio:3/4}
.qual-label{
  display:flex;align-items:baseline;gap:9px;flex-wrap:wrap;
  margin:clamp(46px,5.4vw,68px) 0 clamp(18px,2.2vw,26px);
  padding-top:clamp(22px,2.6vw,30px);border-top:1px solid var(--line);
  font-size:13.5px;font-weight:600;letter-spacing:.02em;color:var(--ink-2);
}
.qual-label span{font-size:12px;font-weight:400;color:var(--ink-3);letter-spacing:.02em}
@media(max-width:900px){.qual--portrait{grid-template-columns:1fr 1fr}.qual--portrait .qual-card:first-child{grid-column:auto}}

/* 证书放大 */
.lightbox{border:0;padding:0;background:transparent;max-width:min(1080px,94vw)}
.lightbox::backdrop{background:rgba(6,20,16,.88);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.lightbox img{display:block;width:100%;height:auto;max-height:86vh;object-fit:contain;background:#fff;border-radius:2px}
.lb-close{
  position:fixed;top:20px;right:22px;z-index:2;width:40px;height:40px;border-radius:50%;
  background:var(--accent);color:var(--ink);font-size:22px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:transform .3s var(--ease),background .3s var(--ease);
}
.lb-close:hover{transform:rotate(90deg);background:var(--accent-2)}

/* ---------- 05 服务流程 ---------- */
.flow{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(250px,340px);
  gap:clamp(32px,5vw,76px);align-items:start;
}
.flow-main{position:relative;min-width:0}
.flow-line{position:absolute;left:31px;top:8px;bottom:8px;width:1px;background:var(--line-dark);overflow:hidden}
.flow-line i{display:block;width:100%;height:0;background:var(--accent)}
.flow-list{display:flex;flex-direction:column}
.flow-item{display:grid;grid-template-columns:64px 1fr;gap:26px;padding:30px 0;align-items:start}
.flow-no{
  position:relative;z-index:2;width:62px;height:62px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--latin);font-size:18px;font-weight:700;
  background:var(--deep-3);border:1px solid var(--line-dark);color:rgba(255,255,255,.6);
  transition:background .5s var(--ease),color .5s var(--ease),border-color .5s var(--ease),transform .5s var(--ease);
}
.flow-item.is-active .flow-no{background:var(--accent);color:var(--ink);border-color:var(--accent);transform:scale(1.04)}
.flow-item h3{font-size:clamp(18px,2vw,23px);letter-spacing:-.025em;margin-bottom:10px}
.flow-item p{font-size:15px;line-height:1.9;color:rgba(255,255,255,.68);max-width:52ch}
.flow-side{
  position:sticky;top:104px;margin:0;aspect-ratio:3/4;
  overflow:hidden;border-radius:2px;background:var(--deep-3);isolation:isolate;
  box-shadow:0 40px 90px -60px rgba(0,0,0,.9);
}
.flow-side img{width:100%;height:100%;object-fit:cover;opacity:.92;transform:scale(1.01);transition:transform 1.4s var(--ease)}
.flow-side:hover img{transform:scale(1.05)}
.flow-side figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:52px 18px 14px;
  background:linear-gradient(transparent,rgba(6,20,16,.82));
  font-size:11.5px;letter-spacing:.14em;color:rgba(255,255,255,.74);
}
@media(max-width:880px){
  .flow{grid-template-columns:1fr}
  .flow-side{display:none}
}
@media(max-width:620px){
  .flow-line{left:23px}
  .flow-item{grid-template-columns:48px 1fr;gap:18px;padding:24px 0}
  .flow-no{width:46px;height:46px;font-size:15px}
}

/* ---------- 05 服务区域 ---------- */
.area-media{
  position:relative;margin:0 0 clamp(38px,5vw,64px);aspect-ratio:21/9;
  overflow:hidden;border-radius:2px;background:var(--paper-2);isolation:isolate;
}
.area-media img{width:100%;height:100%;object-fit:cover}
.area-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:64px 24px 18px;
  background:linear-gradient(transparent,rgba(6,20,16,.82));
  color:rgba(255,255,255,.84);font-size:12.5px;letter-spacing:.12em;
}
@media(max-width:700px){.area-media{aspect-ratio:4/3}.area-media figcaption{padding:44px 18px 14px;font-size:11.5px}}
.districts{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.districts li{
  border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:26px 22px;font-size:clamp(15px,1.7vw,19px);font-weight:600;letter-spacing:-.01em;
  position:relative;overflow:hidden;transition:color .45s var(--ease);
}
.districts li::before{
  content:"";position:absolute;inset:0;background:var(--deep);transform:translateY(101%);
  transition:transform .55s var(--ease);z-index:-1;
}
.districts li{isolation:isolate}
.districts li:hover{color:#fff}
.districts li:hover::before{transform:translateY(0)}
@media(max-width:900px){.districts{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.districts{grid-template-columns:repeat(2,1fr)}.districts li{padding:20px 16px}}

.area-note{margin-top:52px;display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.4fr);gap:14px 48px;align-items:start}
.area-note h3{font-size:clamp(20px,2.4vw,28px);letter-spacing:-.025em}
.area-note p{font-size:15px;line-height:1.9;color:var(--ink-2)}
.area-note p + p{margin-top:12px}
@media(max-width:760px){.area-note{grid-template-columns:1fr;gap:16px}}

/* ---------- 06 FAQ ---------- */
.faq{border-top:1px solid var(--line-dark)}
.faq details{border-bottom:1px solid var(--line-dark)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:20px;
  padding:26px 0;font-size:clamp(16px,1.9vw,20px);font-weight:600;letter-spacing:-.02em;
  transition:color .35s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";flex:none;margin-left:auto;margin-top:8px;width:13px;height:13px;position:relative;
  background:
    linear-gradient(currentColor,currentColor) center/13px 1.5px no-repeat,
    linear-gradient(currentColor,currentColor) center/1.5px 13px no-repeat;
  transition:transform .45s var(--ease);
}
.faq details[open] summary::after{transform:rotate(135deg)}
.faq summary:hover{color:var(--accent)}
.faq .ans{padding:0 0 30px;max-width:76ch}
.faq .ans p{font-size:15px;line-height:1.95;color:rgba(255,255,255,.72)}
.faq details[open] .ans{animation:fade .55s var(--ease)}
@keyframes fade{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.faq-more{margin-top:38px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.66)}
.faq-more a{color:var(--accent);border-bottom:1px solid rgba(198,242,78,.4);transition:border-color .3s}
.faq-more a:hover{border-color:var(--accent)}

/* ---------- 07 联系 ---------- */
.contact{background:var(--paper)}
.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:clamp(36px,5vw,80px)}
.big-tel{display:block;border-top:2px solid var(--ink);border-bottom:1px solid var(--line);padding:26px 0 30px}
.big-tel .label{display:block;font-size:12px;letter-spacing:.16em;color:var(--ink-3);margin-bottom:10px}
.big-tel .num{
  display:block;font-family:var(--latin);font-weight:700;letter-spacing:-.02em;
  font-size:clamp(30px,4.6vw,54px);line-height:1;
  transition:color .4s var(--ease),transform .5s var(--ease);
}
.big-tel:hover .num{color:var(--deep-2);transform:translateX(6px)}
.meta{margin-top:30px;display:grid;gap:16px}
.meta > div{display:grid;grid-template-columns:130px 1fr;gap:16px;font-size:14.5px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.meta dt{color:var(--ink-3);font-size:13px}
.meta dd{margin:0;color:var(--ink);line-height:1.75}
.meta a{border-bottom:1px solid var(--line-2);transition:border-color .3s}
.meta a:hover{border-color:var(--ink)}
.qr{margin-top:30px;display:flex;align-items:center;gap:18px}
.qr img{width:132px;height:132px;border:1px solid var(--line);background:#fff;border-radius:var(--r)}
.qr strong{display:block;font-size:15px;margin-bottom:6px}
.qr p{font-size:13px;color:var(--ink-3)}

.form{background:var(--card);border:1px solid var(--line);padding:clamp(26px,3.4vw,44px);border-radius:var(--r)}
.form h3{font-size:clamp(20px,2.2vw,26px);letter-spacing:-.025em}
.form-sub{margin-top:8px;font-size:13.5px;color:var(--ink-3);margin-bottom:26px}
.field{margin-bottom:18px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field label{display:block;font-size:12.5px;font-weight:600;letter-spacing:.06em;color:var(--ink-2);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:15px;color:var(--ink);
  background:var(--paper);border:1px solid var(--line-2);border-radius:var(--r);
  padding:13px 14px;transition:border-color .3s var(--ease),box-shadow .3s var(--ease),background .3s;
  appearance:none;
}
.field select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%234B5350' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;
}
.field textarea{resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--deep-2);box-shadow:0 0 0 3px rgba(18,58,45,.1);background:#fff;
}
.field input::placeholder,.field textarea::placeholder{color:#A9AEA9}
.field input[aria-invalid="true"],.field textarea[aria-invalid="true"]{border-color:#C0392B;box-shadow:0 0 0 3px rgba(192,57,43,.08)}
.form .btn{margin-top:8px}
.form-alt{margin-top:16px;text-align:center;font-size:13px;color:var(--ink-3)}
.form-alt a{border-bottom:1px solid var(--line-2);color:var(--ink-2)}
.form-msg{margin-top:14px;font-size:13.5px;line-height:1.7;min-height:0}
.form-msg.ok{color:var(--deep-2)}
.form-msg.err{color:#C0392B}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr}}
@media(max-width:560px){.field-row{grid-template-columns:1fr}.meta > div{grid-template-columns:1fr;gap:4px}}

/* ---------- 页脚 ---------- */
.foot{background:var(--deep-3);color:rgba(255,255,255,.7);padding:clamp(56px,7vw,88px) 0 30px}
.foot-in{display:grid;grid-template-columns:1.5fr 1fr 1.4fr 1fr;gap:clamp(28px,4vw,56px)}
.foot-brand .mark{font-size:19px;font-weight:800;color:#fff;letter-spacing:.01em}
.foot-brand p{margin-top:16px;font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.55);max-width:34ch}
.foot-col h4{font-size:12px;letter-spacing:.16em;color:var(--accent);font-weight:600;margin-bottom:18px}
.foot-col ul{display:grid;gap:11px;font-size:13.5px}
.foot-col a{border-bottom:1px solid transparent;transition:border-color .3s,color .3s}
.foot-col a:hover{color:#fff;border-color:rgba(255,255,255,.4)}
.foot-bar{
  margin-top:clamp(44px,5vw,64px);padding-top:22px;border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.56);
}
.foot-bar .ai-note{font-size:11.5px;color:rgba(255,255,255,.3)}
@media(max-width:900px){.foot-in{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.foot-in{grid-template-columns:1fr}}

/* ---------- 滚动入场 ---------- */
.js [data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js [data-reveal].in{opacity:1;transform:none}
/* 首屏大标题：行遮罩上推 */
.js .display{overflow:hidden;padding-bottom:.06em}
.js .display .w{display:block;transform:translateY(115%);transition:transform 1.05s var(--ease)}
.js .display.in .w{transform:none}
.js .display.in .w:nth-child(2){transition-delay:.09s}

/* ---------- 降级：尊重减少动效 ---------- */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .js [data-reveal]{opacity:1;transform:none}
  .marquee-track{animation:none}
  .grain,.cursor{display:none}
}

/* ============================================================
   子页面（多页站）样式
   ============================================================ */
.sub-page .nav,
.sub-page .nav:not(.solid){
  background:rgba(243,241,235,.9);
  backdrop-filter:saturate(180%) blur(16px);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom-color:var(--line);
}
.sub-page .nav .brand .mark,
.sub-page .nav .navlinks a,
.sub-page .nav .brand .sub,
.sub-page .nav .burger,
.sub-page .nav .nav-tel{color:var(--ink)}
.sub-page .nav .brand .sub{color:var(--ink-3)}
.sub-page .nav .nav-tel{color:var(--ink-2)}

/* 子页面主容器（注意：不要叫 .sub，会撞上首页栏目副标题的 .sub） */
.subpage{padding:calc(70px + clamp(38px,5vw,68px)) 0 clamp(70px,9vw,120px)}
.crumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:12.5px;color:var(--ink-3);margin-bottom:clamp(24px,3vw,38px);
}
.crumb a{border-bottom:1px solid transparent;transition:border-color .3s,color .3s}
.crumb a:hover{color:var(--ink);border-bottom-color:var(--line-2)}
.crumb i{font-style:normal;color:var(--line-2)}
.sub-h1{
  font-size:clamp(30px,5vw,58px);line-height:1.14;letter-spacing:-.032em;
  max-width:20em;margin-bottom:22px;
}
.sub-lede{font-size:clamp(15px,1.5vw,18px);line-height:1.9;color:var(--ink-2);max-width:52ch}
.sub-body{max-width:76ch;margin-top:clamp(38px,5vw,60px)}
.sub-h2{
  font-size:clamp(20px,2.4vw,28px);letter-spacing:-.025em;
  margin:clamp(38px,4.5vw,56px) 0 16px;padding-top:clamp(20px,2.4vw,28px);
  border-top:1px solid var(--line);
}
.sub-body > .sub-h2:first-child{margin-top:0;border-top:0;padding-top:0}
.sub-body p{font-size:15.5px;line-height:1.95;color:var(--ink-2)}
.sub-body p + p{margin-top:14px}
.sub-body p a{color:var(--deep-2);border-bottom:1px solid var(--line-2)}
.sub-body p a:hover{border-bottom-color:var(--deep-2)}
.sub-ul{margin-top:16px;display:grid;gap:11px}
.sub-ul li{position:relative;padding-left:22px;font-size:15px;line-height:1.9;color:var(--ink-2)}
.sub-ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:9px;height:1.5px;background:var(--accent-ink);
}
.sub-table-wrap{overflow-x:auto;margin-top:20px}
.sub-table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:560px}
.sub-table th,.sub-table td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.8}
.sub-table thead th{font-size:12px;letter-spacing:.1em;color:var(--ink-3);border-bottom-color:var(--line-2)}
.sub-table tbody th{color:var(--ink)}
.sub-table td{color:var(--ink-2)}
.sub-faq{border-bottom:1px solid var(--line);padding:6px 0}
.sub-faq summary{
  list-style:none;cursor:pointer;display:flex;gap:18px;align-items:flex-start;
  padding:18px 0;font-size:clamp(15.5px,1.8vw,19px);font-weight:600;letter-spacing:-.02em;
}
.sub-faq summary::-webkit-details-marker{display:none}
.sub-faq summary::after{
  content:"";flex:none;margin-left:auto;margin-top:8px;width:13px;height:13px;
  background:linear-gradient(currentColor,currentColor) center/13px 1.5px no-repeat,
             linear-gradient(currentColor,currentColor) center/1.5px 13px no-repeat;
  transition:transform .45s var(--ease);
}
.sub-faq[open] summary::after{transform:rotate(135deg)}
.sub-faq summary:hover{color:var(--accent-ink)}
.sub-faq .ans{padding:0 0 20px;max-width:74ch}
.sub-faq .ans p{font-size:15px;line-height:1.95;color:var(--ink-2)}

.sub-cta{
  margin-top:clamp(48px,6vw,80px);padding:clamp(28px,3.6vw,46px);
  background:var(--deep);color:#fff;border-radius:2px;
  display:flex;gap:28px;align-items:center;justify-content:space-between;flex-wrap:wrap;
}
.sub-cta-t{font-size:clamp(19px,2.2vw,26px);font-weight:800;letter-spacing:-.025em}
.sub-cta-s{margin-top:10px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:44ch}
.sub-cta-b{display:flex;gap:12px;flex-wrap:wrap}
.sub-cta .btn-solid{background:var(--accent);color:var(--ink)}
.sub-cta .btn-solid:hover{background:var(--accent-2)}
.sub-cta .btn-ghost{border-color:rgba(255,255,255,.28);color:#fff}
.sub-cta .btn-ghost:hover{border-color:#fff}

.sub-rel{margin-top:clamp(44px,5vw,64px);padding-top:clamp(22px,2.6vw,30px);border-top:1px solid var(--line)}
.sub-rel-t{font-size:12px;letter-spacing:.16em;color:var(--ink-3);margin-bottom:18px}
.sub-rel-g{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.sub-rel-g a{background:var(--paper);padding:22px 20px;display:flex;flex-direction:column;gap:8px;transition:background .45s var(--ease)}
.sub-rel-g a:hover{background:var(--card)}
.sub-rel-g span{font-size:16px;font-weight:700;letter-spacing:-.02em}
.sub-rel-g em{font-style:normal;font-size:12.5px;color:var(--ink-3)}
@media(max-width:760px){.sub-rel-g{grid-template-columns:1fr}}

.hub{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.hub-card{background:var(--paper);padding:clamp(24px,2.8vw,34px);display:flex;flex-direction:column;gap:12px;transition:background .45s var(--ease)}
.hub-card:hover{background:var(--card)}
.hub-card h3{font-size:18px;letter-spacing:-.02em}
.hub-card p{font-size:14px;line-height:1.85;color:var(--ink-2)}
.hub-more{margin-top:auto;font-size:13px;font-weight:600;color:var(--accent-ink)}
.hub--dist{grid-template-columns:repeat(4,1fr)}
.hub-card--sm{padding:20px 18px}
.hub-card--sm h3{font-size:16px}
.hub-card--sm p{font-size:13px}
@media(max-width:900px){.hub{grid-template-columns:1fr 1fr}.hub--dist{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.hub,.hub--dist{grid-template-columns:1fr}}

/* 首页内链的交互细节 */
.svc-body h3 a{background-image:linear-gradient(currentColor,currentColor);background-repeat:no-repeat;background-size:0 1px;background-position:0 100%;transition:background-size .5s var(--ease)}
.svc-item:hover .svc-body h3 a{background-size:100% 1px}
.districts li a{display:block}
.qual-more{margin-top:clamp(24px,2.8vw,34px);font-size:14px;color:var(--ink-3)}
.qual-more a{color:var(--deep-2);border-bottom:1px solid var(--line-2)}
.qual-more a:hover{border-bottom-color:var(--deep-2)}

/* ============================================================
   行业观察（文章 / 发帖区）
   ============================================================ */
.posts{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
}
.post-card{
  background:var(--paper);padding:clamp(22px,2.6vw,32px);
  display:flex;flex-direction:column;gap:12px;
  transition:background .45s var(--ease);
}
.post-card:hover{background:var(--card)}
.post-card-meta{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-family:var(--latin);font-size:12px;letter-spacing:.06em;color:var(--ink-3);
}
.post-card-meta span{
  font-family:var(--sans);letter-spacing:.1em;font-size:11px;
  padding:2px 9px;border:1px solid var(--line-2);border-radius:100px;color:var(--ink-2);
}
.post-card h3{font-size:clamp(17px,1.7vw,20px);line-height:1.42;letter-spacing:-.022em}
.post-card-x{font-size:13.5px;line-height:1.85;color:var(--ink-2)}
.post-card .hub-more{margin-top:auto;font-size:13px;font-weight:600;color:var(--accent-ink)}
.posts-more{margin-top:clamp(22px,2.6vw,30px);font-size:14px}
.posts-more a{font-weight:600;color:var(--accent-ink);border-bottom:1px solid var(--line-2);transition:border-color .35s}
.posts-more a:hover{border-bottom-color:var(--accent-ink)}
@media(max-width:900px){.posts{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.posts{grid-template-columns:1fr}}

/* 文章正文页 */
.post-meta{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-family:var(--latin);font-size:12.5px;letter-spacing:.06em;color:var(--ink-3);
  margin-bottom:clamp(20px,2.6vw,30px);padding-bottom:18px;border-bottom:1px solid var(--line);
}
.post-meta span{
  font-family:var(--sans);letter-spacing:.1em;font-size:11px;
  padding:2px 9px;border:1px solid var(--line-2);border-radius:100px;color:var(--ink-2);
}
.post-tail{
  margin-top:clamp(30px,3.4vw,44px);padding-top:clamp(18px,2vw,24px);
  border-top:1px solid var(--line);font-size:14px;line-height:1.9;color:var(--ink-3);
}
.post-tail a{color:var(--deep-2);border-bottom:1px solid var(--line-2)}
.post-tail a:hover{border-bottom-color:var(--deep-2)}