/* ==========================================================================
   环亮防水 V2 · 暖白 + 大图纪实
   规则：只用 1px 线分隔，不用阴影堆叠、不用渐变按钮、不用玻璃拟态
   ========================================================================== */

:root{
  --paper:#FBFAF7;
  --sand:#F1EDE6;
  --sand-2:#E9E3D8;
  --ink:#171514;
  --stone:#6E6862;
  --stone-l:#938B82;
  --line:#E2DDD4;
  --line-d:#CFC7B9;
  --blue:#123E63;
  --blue-l:#1D5A8C;
  --orange:#C94F17;
  --radius:4px;
  --wrap:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:hidden}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.95;-webkit-font-smoothing:antialiased;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:700;line-height:1.3;letter-spacing:-.015em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px}

/* ---------- 顶条 ---------- */
.tbar{border-bottom:1px solid var(--line);background:var(--paper)}
.tbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:40px;font-size:12.5px;color:var(--stone)}
.tbar__l{display:flex;gap:18px;align-items:center;white-space:nowrap;overflow:hidden}
.tbar__l i{width:5px;height:5px;background:var(--orange);border-radius:50%;display:inline-block;margin-right:7px;vertical-align:middle}
.tbar__r{display:flex;gap:18px;white-space:nowrap}
.tbar a:hover{color:var(--ink)}

/* ---------- 导航 ---------- */
.nav{position:sticky;top:0;z-index:60;background:var(--paper);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:28px;height:74px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{width:34px;height:34px;flex:0 0 auto;display:grid;place-items:center;border:1.5px solid var(--ink);border-radius:50%}
.brand__mark svg{width:18px;height:18px;stroke:var(--ink)}
.brand__txt{display:flex;flex-direction:column;line-height:1.15}
.brand__txt b{font-size:18px;letter-spacing:.04em}
.brand__txt span{font-size:9.5px;letter-spacing:.2em;color:var(--stone-l);text-transform:uppercase}
.nav__menu{display:flex;align-items:center;gap:26px;flex:0 0 auto}
.nav__menu a{font-size:14.5px;color:var(--stone);white-space:nowrap;padding-bottom:3px;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.nav__menu a:hover,.nav__menu a.is-active{color:var(--ink);border-color:var(--ink)}
.nav__end{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.nav__tel{font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav__tel small{display:block;font-size:10.5px;font-weight:400;color:var(--stone-l);letter-spacing:.1em}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--radius);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:background .2s,color .2s,border-color .2s;
  white-space:nowrap;font-family:inherit;
}
.btn svg{width:16px;height:16px;flex:0 0 auto}
.btn--primary{background:var(--ink);color:#fff}
.btn--primary:hover{background:#000}
.btn--line{border-color:var(--ink);color:var(--ink);background:transparent}
.btn--line:hover{background:var(--ink);color:#fff}
.btn--sm{padding:10px 18px;font-size:14px}
.btn--full{width:100%}
.nav__burger{display:none;width:40px;height:40px;border:1px solid var(--line-d);background:transparent;border-radius:var(--radius);cursor:pointer;position:relative}
.nav__burger span{position:absolute;left:10px;right:10px;height:1.5px;background:var(--ink);transition:.25s var(--ease)}
.nav__burger span:nth-child(1){top:13px}
.nav__burger span:nth-child(2){top:19px}
.nav__burger span:nth-child(3){top:25px}
.nav__burger.is-on span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav__burger.is-on span:nth-child(2){opacity:0}
.nav__burger.is-on span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{border-bottom:1px solid var(--line);overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.02fr .98fr;gap:0;align-items:stretch;padding:0;max-width:1400px}
.hero__copy{padding:80px 56px 80px 32px;display:flex;flex-direction:column;justify-content:center}
.hero__kicker{display:flex;align-items:center;gap:10px;font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--stone-l);margin-bottom:26px}
.hero__kicker::before{content:"";width:28px;height:1px;background:var(--stone-l)}
.hero h1{font-size:clamp(34px,4.4vw,56px);line-height:1.22;letter-spacing:-.03em}
.hero h1 span{display:block;color:var(--stone)}
.hero__sub{margin-top:26px;font-size:16.5px;line-height:1.95;color:var(--stone);max-width:30em}
.hero__acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero__note{margin-top:22px;font-size:13px;color:var(--stone-l);line-height:1.7}
.hero__fig{position:relative;min-height:540px}
.hero__fig img{width:100%;height:100%;object-fit:cover}
.hero__fig figcaption{
  position:absolute;left:0;bottom:0;background:rgba(23,21,20,.78);color:#fff;
  font-size:11.5px;letter-spacing:.05em;padding:9px 16px;
}

/* ---------- 信息条 ---------- */
.marquee{border-bottom:1px solid var(--line);background:var(--sand)}
.marquee .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.marquee div{padding:22px 24px;border-right:1px solid var(--line-d);font-size:13.5px;color:var(--stone)}
.marquee div:last-child{border-right:0}
.marquee b{display:block;color:var(--ink);font-size:14.5px;font-weight:700;margin-bottom:3px}

/* ---------- 通用区块 ---------- */
.sec{padding:104px 0}
.sec--sand{background:var(--sand)}
.sec--tight{padding:72px 0}
.sec__head{max-width:660px;margin-bottom:60px}
.sec__head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:block;font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--stone-l);margin-bottom:20px}
.sec__head h2{font-size:clamp(26px,3.1vw,40px);line-height:1.28}
.sec__head p{margin-top:18px;font-size:16px;color:var(--stone);line-height:1.95;max-width:36em}
.sec__head--center p{margin-left:auto;margin-right:auto}

/* ---------- 痛点列表（编号 + 细线） ---------- */
.pains{border-top:1px solid var(--line-d)}
.pains li{display:grid;grid-template-columns:64px 1fr auto;gap:24px;align-items:baseline;padding:30px 0;border-bottom:1px solid var(--line-d)}
.pains em{font-style:normal;font-size:13px;color:var(--orange);letter-spacing:.08em;font-weight:700}
.pains b{font-size:19px;font-weight:700;display:block}
.pains p{font-size:14.5px;color:var(--stone);margin-top:6px;max-width:40em}
.pains .tag{font-size:12px;color:var(--stone-l);white-space:nowrap}

/* ---------- 图文交替 ---------- */
.zrow{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding:64px 0;border-bottom:1px solid var(--line-d)}
.zrow:last-child{border-bottom:0}
.zrow__fig img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius)}
.zrow--rev .zrow__fig{order:2}
.zrow__no{font-size:12px;letter-spacing:.18em;color:var(--orange);font-weight:700;margin-bottom:14px;display:block}
.zrow h3{font-size:clamp(22px,2.4vw,30px);line-height:1.35;margin-bottom:16px}
.zrow p{font-size:15.5px;color:var(--stone);line-height:1.95}
.zrow ul{margin-top:20px;display:grid;gap:9px}
.zrow li{font-size:14.5px;color:var(--stone);padding-left:18px;position:relative}
.zrow li::before{content:"";position:absolute;left:0;top:13px;width:7px;height:1px;background:var(--orange)}
.zrow__link{display:inline-flex;align-items:center;gap:8px;margin-top:26px;font-size:14.5px;font-weight:600;border-bottom:1px solid var(--ink);padding-bottom:2px}
.zrow__link svg{width:14px;height:14px;transition:transform .2s}
.zrow__link:hover svg{transform:translateX(3px)}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line-d)}
.steps li{padding:28px 26px 0 0;border-right:1px solid var(--line-d)}
.steps li:last-child{border-right:0;padding-right:0}
.steps b{display:block;font-size:34px;line-height:1;color:var(--orange);font-weight:800;letter-spacing:-.02em;margin-bottom:16px}
.steps h4{font-size:16px;margin-bottom:8px}
.steps p{font-size:13.5px;color:var(--stone);line-height:1.8}

/* ---------- 数字 ---------- */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line-d);border-bottom:1px solid var(--line-d)}
.stats div{padding:44px 32px 44px 0;border-right:1px solid var(--line-d)}
.stats div:last-child{border-right:0}
.stats b{display:block;font-size:clamp(34px,4vw,52px);line-height:1;letter-spacing:-.03em;font-weight:800}
.stats b em{font-style:normal;font-size:.42em;color:var(--stone);margin-left:6px;font-weight:600}
.stats span{display:block;margin-top:14px;font-size:14px;color:var(--stone);line-height:1.8}

/* ---------- 边界（反向信任） ---------- */
.notes{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line-d)}
.notes div{padding:34px 32px 34px 0;border-right:1px solid var(--line-d)}
.notes div:last-child{border-right:0;padding-right:0}
.notes h4{font-size:15.5px;margin-bottom:12px;display:flex;gap:9px;align-items:center}
.notes h4 svg{width:15px;height:15px;color:var(--stone-l);flex:0 0 auto}
.notes p{font-size:14px;color:var(--stone);line-height:1.9}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line-d);max-width:860px}
.faq__i{border-bottom:1px solid var(--line-d)}
.faq__q{display:flex;gap:20px;align-items:baseline;justify-content:space-between;padding:24px 0;cursor:pointer;font-size:16.5px;font-weight:600;list-style:none}
.faq__q::-webkit-details-marker{display:none}
.faq__q::after{content:"+";font-size:20px;color:var(--stone-l);font-weight:400;line-height:1;flex:0 0 auto}
.faq__i[open] .faq__q::after{content:"–"}
.faq__a{padding:0 0 26px;font-size:15px;color:var(--stone);line-height:1.95;max-width:44em}

/* ---------- 联系区 ---------- */
.contact{background:var(--ink);color:#fff;padding:96px 0}
.contact .wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:72px;align-items:start}
.contact .eyebrow{color:rgba(255,255,255,.45)}
.contact h2{font-size:clamp(26px,3vw,38px);line-height:1.3;letter-spacing:-.02em}
.contact__sub{margin-top:18px;color:rgba(255,255,255,.62);font-size:15.5px;line-height:1.95;max-width:30em}
.contact__ways{margin-top:40px;border-top:1px solid rgba(255,255,255,.16)}
.contact__ways a,.contact__ways div{display:flex;align-items:baseline;gap:16px;padding:20px 0;border-bottom:1px solid rgba(255,255,255,.16)}
.contact__ways small{font-size:11.5px;letter-spacing:.14em;color:rgba(255,255,255,.42);flex:0 0 84px;text-transform:uppercase}
.contact__ways b{font-size:19px;font-weight:600;letter-spacing:.01em}
.contact__ways span{font-size:14px;color:rgba(255,255,255,.72);line-height:1.7}
.form{background:#fff;color:var(--ink);padding:36px;border-radius:var(--radius)}
.form h3{font-size:18px;margin-bottom:6px}
.form__hint{font-size:12.5px;color:var(--stone-l);line-height:1.7;margin-bottom:24px}
.field{margin-bottom:16px}
.field label{display:block;font-size:12.5px;color:var(--stone);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line-d);border-radius:var(--radius);
  background:#fff;color:var(--ink);font-size:15px;font-family:inherit;transition:border-color .2s;
}
.field input::placeholder,.field textarea::placeholder{color:#B5ADA2}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--ink)}
.field--2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form__note{margin-top:14px;font-size:11.5px;color:var(--stone-l);line-height:1.7}
.form__tip{margin-top:10px;font-size:12.5px;color:var(--blue);line-height:1.7}

/* ---------- 页脚 ---------- */
.foot{background:var(--ink);color:rgba(255,255,255,.6);font-size:13.5px;border-top:1px solid rgba(255,255,255,.12)}
.foot__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:48px;padding:64px 0 48px;border-bottom:1px solid rgba(255,255,255,.12)}
.foot h4{font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.42);margin-bottom:18px;font-weight:600}
.foot ul{display:grid;gap:11px}
.foot a:hover{color:#fff}
.foot__brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.foot__brand .brand__mark{border-color:rgba(255,255,255,.4)}
.foot__brand .brand__mark svg{stroke:#fff}
.foot__brand b{font-size:17px;color:#fff;letter-spacing:.04em;display:block;line-height:1.2}
.foot__brand span{font-size:9.5px;letter-spacing:.2em;color:rgba(255,255,255,.4)}
.foot__about p{line-height:1.9;max-width:330px}
.foot__bar{display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;align-items:center;padding:24px 0;font-size:12px;color:rgba(255,255,255,.36)}
.foot__bar a{color:rgba(255,255,255,.36)}
.foot__bar a:hover{color:#fff}

/* ---------- 移动端悬浮条 ---------- */
.mbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;border-top:1px solid var(--line);padding:10px 14px;gap:10px}
.mbar a{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;padding:12px 0;border-radius:var(--radius);font-size:15px;font-weight:600}
.mbar svg{width:16px;height:16px}
.mbar a.tel{border:1px solid var(--ink);color:var(--ink)}
.mbar a.main{background:var(--ink);color:#fff}

/* ---------- 内页头 ---------- */
.phead{background:var(--sand);border-bottom:1px solid var(--line-d);padding:64px 0 56px}
.crumb{display:flex;flex-wrap:wrap;gap:9px;font-size:12.5px;color:var(--stone-l);margin-bottom:26px}
.crumb a:hover{color:var(--ink)}
.crumb i{font-style:normal;color:var(--line-d)}
.phead h1{font-size:clamp(28px,3.6vw,46px);line-height:1.24;letter-spacing:-.025em;max-width:22em}
.phead p{margin-top:18px;color:var(--stone);font-size:15.8px;max-width:40em;line-height:1.95}

/* ---------- 正文排版 ---------- */
.prose{max-width:760px}
.prose h2{font-size:24px;margin:48px 0 16px;line-height:1.4}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:17.5px;margin:28px 0 10px}
.prose p{color:#3B3733;font-size:16px;line-height:2;margin-bottom:16px}
.prose ul{margin:0 0 18px;display:grid;gap:9px}
.prose ul li{position:relative;padding-left:20px;color:#3B3733;font-size:15.5px;line-height:1.95}
.prose ul li::before{content:"";position:absolute;left:0;top:13px;width:7px;height:1px;background:var(--orange)}
.prose .note{padding:20px 24px;background:var(--sand);border-radius:var(--radius);font-size:14.5px;color:#3B3733;line-height:1.9;margin:26px 0}

/* ---------- 通用卡片（轻） ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.card h3{font-size:16.5px;margin-bottom:12px}
.card p{font-size:14.5px;color:var(--stone);line-height:1.9}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.list-link{border-top:1px solid var(--line-d)}
.list-link a{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-bottom:1px solid var(--line-d);font-size:15.5px}
.list-link a:hover{color:var(--blue-l)}
.list-link span{color:var(--stone-l);font-size:13px;white-space:nowrap}

/* ---------- 表格 ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:14.5px;background:#fff;border-top:1px solid var(--line-d)}
.tbl caption{caption-side:top;text-align:left;font-size:12.5px;color:var(--stone-l);padding-bottom:12px}
.tbl th,.tbl td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{background:var(--sand);font-weight:600;font-size:13.5px;color:var(--ink);white-space:nowrap}
.tbl td{color:#3B3733;line-height:1.85}
.tblwrap{overflow-x:auto}

/* ---------- 症状清单 ---------- */
.sym{display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:1px solid var(--line-d)}
.sym li{display:flex;gap:12px;padding:18px 24px 18px 0;border-bottom:1px solid var(--line-d);font-size:14.5px;color:#3B3733;line-height:1.85}
.sym li svg{width:15px;height:15px;color:var(--orange);flex:0 0 auto;margin-top:6px}

/* ---------- 成因清单 ---------- */
.causes{border-top:1px solid var(--line-d)}
.causes li{padding:20px 0;border-bottom:1px solid var(--line-d)}
.causes h4{font-size:15.5px;margin-bottom:6px}
.causes p{font-size:14px;color:var(--stone);line-height:1.9}

/* ---------- 纵向步骤 ---------- */
.flow{border-top:1px solid var(--line-d)}
.flow li{padding:22px 0;border-bottom:1px solid var(--line-d);display:grid;grid-template-columns:44px 1fr;gap:16px}
.flow b{font-size:13px;color:var(--orange);font-weight:700;padding-top:4px}
.flow h4{font-size:16px;margin-bottom:7px}
.flow p{font-size:14.5px;color:var(--stone);line-height:1.9}

/* ---------- 底部咨询条 ---------- */
.cbar{background:var(--sand);border-top:1px solid var(--line-d);padding:48px 0}
.cbar .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.cbar h2{font-size:clamp(20px,2.2vw,26px);letter-spacing:-.02em}
.cbar p{margin-top:8px;font-size:14px;color:var(--stone)}
.cbar__acts{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 进场动画（无 JS 时保持可见） ---------- */
html.js [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
html.js [data-reveal].is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html.js [data-reveal]{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero .wrap{grid-template-columns:1fr}
  .hero__copy{padding:64px 32px 48px}
  .hero__fig{min-height:0;aspect-ratio:4/3}
  .marquee .wrap{grid-template-columns:repeat(2,1fr)}
  .marquee div:nth-child(2){border-right:0}
  .marquee div:nth-child(-n+2){border-bottom:1px solid var(--line-d)}
  .zrow{grid-template-columns:1fr;gap:32px;padding:48px 0}
  .zrow--rev .zrow__fig{order:0}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps li{padding:24px 24px 24px 0;border-bottom:1px solid var(--line-d)}
  .steps li:nth-child(2n){border-right:0}
  .notes{grid-template-columns:1fr}
  .notes div{border-right:0;border-bottom:1px solid var(--line-d);padding:26px 0}
  .notes div:last-child{border-bottom:0}
  .contact .wrap{grid-template-columns:1fr;gap:44px}
  .foot__grid{grid-template-columns:1fr 1fr;gap:40px}
}
@media (max-width:860px){
  .tbar__l{display:none}
  .nav .wrap{height:64px;gap:16px}
  .nav__tel{display:none}
  .nav__menu{
    position:fixed;top:104px;left:0;right:0;bottom:0;z-index:59;flex-direction:column;align-items:stretch;gap:0;
    background:var(--paper);padding:8px 32px 120px;overflow-y:auto;transform:translateX(100%);transition:transform .3s var(--ease);
    border-top:1px solid var(--line);
  }
  .nav__menu.is-open{transform:none}
  .nav__menu a{padding:18px 0;font-size:17px;border-bottom:1px solid var(--line);border-radius:0}
  .nav__menu a.is-active{border-color:var(--ink)}
  .nav__burger{display:block}
  .mbar{display:flex}
  body{padding-bottom:64px}
  .sec{padding:72px 0}
  .pains li{grid-template-columns:44px 1fr;gap:16px}
  .pains .tag{display:none}
  .stats{grid-template-columns:1fr}
  .stats div{border-right:0;border-bottom:1px solid var(--line-d);padding:28px 0}
  .stats div:last-child{border-bottom:0}
  .sym{grid-template-columns:1fr}
  .grid3,.grid4,.grid2{grid-template-columns:1fr}
}
@media (max-width:640px){
  .wrap{padding:0 20px}
  .hero__copy{padding:44px 20px 40px}
  .hero h1{font-size:31px}
  .hero__acts .btn{flex:1 1 100%}
  .nav__menu{top:104px;padding:8px 20px 110px}
  .sec__head{margin-bottom:40px}
  .steps{grid-template-columns:1fr}
  .steps li{border-right:0;padding-right:0}
  .field--2{grid-template-columns:1fr}
  .form{padding:26px}
  .foot__grid{grid-template-columns:1fr;gap:34px;padding:44px 0 32px}
  .tbar .wrap{height:36px;font-size:11.5px}
  .tbar__r a:last-child{display:none}
  .phead{padding:44px 0 40px}
  .cbar{padding:36px 0}
  .cbar__acts .btn{flex:1 1 100%}
}

/* ---------- 关于页清单 ---------- */
.about-list{display:grid;gap:12px}
.about-list li{position:relative;padding-left:18px;font-size:14.5px;color:var(--stone);line-height:1.9}
.about-list li::before{content:"";position:absolute;left:0;top:13px;width:7px;height:1px;background:var(--orange)}

/* ---------- 标题换行优化 ---------- */
.hero h1,.sec__head h2,.phead h1,.zrow h3{text-wrap:balance}

/* ---------- 数字后缀对齐 ---------- */
.stats b em{vertical-align:baseline;line-height:1}

/* ==========================================================================
   交互与细节（V2.1）
   原则：时长 200–700ms，缓动统一，暖橙且透明度 ≤ .16，reduced-motion 全关
   ========================================================================== */

/* 1. 阅读进度条 */
.progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--orange);z-index:90;transition:width .12s linear}

/* 2. 导航收缩 */
.nav .wrap{transition:height .3s var(--ease)}
.nav.is-scrolled .wrap{height:58px}
.brand__mark{transition:width .3s var(--ease),height .3s var(--ease)}
.nav.is-scrolled .brand__mark{width:28px;height:28px}
.nav.is-scrolled .brand__mark svg{width:15px;height:15px}
.nav.is-scrolled{box-shadow:0 1px 0 rgba(23,21,20,.06)}

/* 3. 文字链接：下划线从左展开 */
.zrow__link,.list-link a,.foot__bar a,.crumb a{background-image:linear-gradient(currentColor,currentColor);background-repeat:no-repeat;background-position:0 100%;background-size:0 1px;transition:background-size .35s var(--ease),color .25s}
.zrow__link{border-bottom:0;padding-bottom:3px}
.zrow__link:hover,.list-link a:hover,.foot__bar a:hover,.crumb a:hover{background-size:100% 1px}

/* 4. 按钮 */
.btn{transition:background .25s,color .25s,border-color .25s,transform .25s var(--ease)}
.btn--primary:hover{background:#000;transform:translateY(-1px)}
.btn--line:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn:active{transform:none}
.btn:focus-visible{outline:2px solid var(--orange);outline-offset:3px}
.btn svg{transition:transform .25s var(--ease)}
.btn:hover svg{transform:translateX(4px)}

/* 5. 列表条目 */
.pains li{position:relative;transition:background .3s,padding-left .3s var(--ease)}
.pains li::before{content:"";position:absolute;left:-32px;top:50%;width:2px;height:0;background:var(--orange);transition:height .3s var(--ease),top .3s var(--ease)}
.pains li:hover{background:linear-gradient(90deg,rgba(241,237,230,.95),rgba(241,237,230,0) 72%)}
.pains li:hover::before{height:56%;top:22%}
.pains li b,.pains li p{transition:transform .3s var(--ease)}
.pains li:hover b{transform:translateX(2px)}

.list-link a{transition:background .25s,padding-left .25s var(--ease)}
.list-link a:hover{padding-left:8px}

/* 6. 卡片 */
.card{position:relative;transition:border-color .3s,background .3s,transform .3s var(--ease)}
.card:hover{border-color:var(--ink);background:var(--paper);transform:translateY(-2px)}
.card::after{content:"↗";position:absolute;right:20px;top:16px;font-size:14px;color:var(--orange);opacity:0;transform:translate(-5px,5px);transition:opacity .3s,transform .3s var(--ease)}
.card:hover::after{opacity:1;transform:none}

/* 7. 图片悬停与角标 */
.zrow__fig{position:relative;overflow:hidden;border-radius:var(--radius)}
.zrow__fig img{transition:transform .7s var(--ease)}
.zrow__fig:hover img{transform:scale(1.025)}
.zrow__fig::after{content:"";position:absolute;inset:0;border:1px solid rgba(23,21,20,.07);border-radius:inherit;pointer-events:none}
.fig-badge{position:absolute;left:14px;top:14px;z-index:2;background:rgba(255,255,255,.94);border:1px solid var(--line-d);border-radius:2px;font-size:11px;letter-spacing:.12em;padding:4px 9px;color:var(--ink);opacity:0;transform:translateY(-8px);transition:opacity .3s,transform .3s var(--ease)}
.zrow__fig:hover .fig-badge{opacity:1;transform:none}
.fig-cap{position:absolute;left:0;right:0;bottom:0;z-index:2;background:rgba(23,21,20,.8);color:#fff;font-size:11.5px;letter-spacing:.04em;padding:9px 14px;transform:translateY(100%);transition:transform .35s var(--ease)}
.zrow__fig:hover .fig-cap{transform:none}

/* 8. 图片渐显 */
.imgfade{filter:blur(10px);opacity:.55;transition:filter .5s var(--ease),opacity .5s var(--ease)}
.imgfade.done{filter:none;opacity:1}

/* 9. 首屏微倾 */
.hero__fig{perspective:1400px}
.hero__fig img{transform-style:preserve-3d;transition:transform .45s ease-out,filter .45s}
.hero__fig.is-tilt img{will-change:transform}

/* 10. 表单聚焦 */
.field{position:relative;transition:padding-left .25s var(--ease)}
.field::before{content:"";position:absolute;left:-10px;top:24px;bottom:4px;width:2px;background:var(--orange);opacity:0;transition:opacity .25s}
.field:focus-within{padding-left:4px}
.field:focus-within::before{opacity:1}
.field label{transition:color .25s}
.field:focus-within label{color:var(--ink)}

/* 11. FAQ 展开 */
.faq__q::after{transition:transform .3s var(--ease),color .25s}
.faq__q:hover::after{color:var(--orange)}
.faq__i[open] .faq__q::after{transform:rotate(180deg)}
.faq__i[open] .faq__a{animation:faqIn .35s var(--ease)}
@keyframes faqIn{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:none}}

/* 12. 联系区暖光（唯一的"发光"，低强度） */
.contact{position:relative;overflow:hidden}
.contact::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .6s;
  background:radial-gradient(circle 380px at var(--mx,50%) var(--my,50%),rgba(201,79,23,.30),rgba(201,79,23,.10) 42%,rgba(201,79,23,0) 72%);
}
.contact:hover::before{opacity:1}
.contact .wrap{position:relative;z-index:1}

/* 13. 页脚品牌大字 */
.foot{position:relative;overflow:hidden}
.foot__big{
  position:absolute;left:50%;bottom:-.22em;transform:translateX(-50%);
  font-size:15vw;line-height:1;letter-spacing:-.05em;font-weight:800;white-space:nowrap;
  color:rgba(255,255,255,.032);pointer-events:none;user-select:none;
}
.foot .wrap{position:relative;z-index:1}

/* 14. 全宽出血图 */
.bleed{width:100vw;margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw);position:relative;overflow:hidden}
.bleed img{width:100%;height:clamp(260px,40vw,500px);object-fit:cover}
.bleed figcaption{position:absolute;left:max(32px,calc((100vw - 1180px)/2 + 32px));bottom:24px;color:#fff;font-size:12.5px;letter-spacing:.06em;background:rgba(23,21,20,.66);padding:7px 14px}

/* 15. 竖排标签 */
.vlabel{writing-mode:vertical-rl;font-size:11px;letter-spacing:.32em;text-transform:uppercase;color:var(--stone-l);position:absolute;left:-6px;top:6px}
.sec__has-vlabel{position:relative}

/* 16. 章节标题竖线（进入时生长） */
.sec__head h2{position:relative}
.sec__head h2::before{content:"";position:absolute;left:-18px;top:.18em;bottom:.18em;width:2px;background:var(--orange);transform:scaleY(0);transform-origin:top;transition:transform .6s var(--ease) .1s}
html.js .sec__head h2.is-in::before{transform:scaleY(1)}

@media (max-width:1024px){
  .pains li::before{display:none}
  .fig-badge,.fig-cap{display:none}
  .foot__big{font-size:22vw}
}
@media (max-width:860px){
  .progress{display:none}
  .bleed figcaption{left:20px;right:20px;bottom:16px}
  .vlabel{display:none}
}
@media (hover:none){
  .zrow__fig:hover img{transform:none}
  .contact:hover::before{opacity:0}
}
@media (prefers-reduced-motion:reduce){
  .progress{transition:none}
  .nav .wrap,.brand__mark,.btn,.btn svg,.card,.zrow__fig img,.fig-badge,.fig-cap,.pains li,.pains li::before,.zrow__link,.list-link a,.field,.field::before{transition:none}
  .zrow__fig:hover img{transform:none}
  .card:hover{transform:none}
  .btn:hover{transform:none}
  .faq__i[open] .faq__a{animation:none}
  .contact::before{display:none}
  .sec__head h2::before{transform:scaleY(1)}
}

/* 标题断行均衡（避免把词拆成孤字） */
h1,h2{text-wrap:balance}

/* ---------- 已服务的物业 ---------- */
.clients{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line-d)}
.clients__col{padding:32px 0;border-bottom:1px solid var(--line-d)}
.clients__col + .clients__col{border-left:1px solid var(--line-d);padding-left:56px}
.clients__col h3{font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--stone-l);margin-bottom:16px;font-weight:600}
.clients__col li{font-size:16.5px;padding:13px 0;border-bottom:1px solid rgba(226,221,212,.55);transition:color .25s,padding-left .25s var(--ease)}
.clients__col li:last-child{border-bottom:0}
.clients__col li:hover{color:var(--blue);padding-left:6px}

/* ---------- 首页资质条 ---------- */
.certsbar{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.certsbar ul{display:grid;grid-template-columns:repeat(4,1fr)}
.certsbar li{padding:20px 24px;border-right:1px solid var(--line);font-size:13.5px;color:var(--stone);line-height:1.6}
.certsbar li:last-child{border-right:0}
.certsbar b{display:block;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--stone-l);font-weight:600;margin-bottom:5px}

/* ---------- 资质清单 ---------- */
.certs{border-top:1px solid var(--line-d)}
.certs li{display:grid;grid-template-columns:110px 1fr auto;gap:20px;align-items:center;padding:19px 0;border-bottom:1px solid var(--line-d)}
.certs__tag{font-size:11px;letter-spacing:.1em;color:var(--stone-l);border:1px solid var(--line-d);border-radius:2px;padding:4px 0;text-align:center;white-space:nowrap}
.certs__name{font-size:16px;color:var(--ink)}
.certs__st{font-size:12px;color:var(--orange);letter-spacing:.04em;white-space:nowrap}
.certs__note{margin-top:22px;font-size:12.5px;color:var(--stone-l);line-height:1.9;max-width:52em}

@media (max-width:860px){
  .clients{grid-template-columns:1fr}
  .clients__col + .clients__col{border-left:0;padding-left:0}
  .certsbar ul{grid-template-columns:1fr 1fr}
  .certsbar li:nth-child(2n){border-right:0}
  .certsbar li:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .certs li{grid-template-columns:1fr auto;gap:10px 14px}
  .certs__tag{grid-column:1 / -1;justify-self:start;padding:4px 10px}
}

/* ---------- 常识列表 ---------- */
.newslist{border-top:1px solid var(--line-d)}
.newslist > li{border-bottom:1px solid var(--line-d)}
.newslist a{display:grid;grid-template-columns:1fr auto;gap:32px;align-items:start;padding:30px 0;transition:padding-left .3s var(--ease),background .3s}
.newslist a:hover{padding-left:10px}
.newslist time{display:block;font-size:12px;letter-spacing:.08em;color:var(--stone-l);font-variant-numeric:tabular-nums}
.newslist h3{font-size:19px;line-height:1.45;margin:8px 0 10px;transition:color .25s}
.newslist a:hover h3{color:var(--blue)}
.newslist p{font-size:14.5px;color:var(--stone);line-height:1.9;max-width:56em}
.newslist__more{font-size:13px;color:var(--stone-l);white-space:nowrap;padding-top:26px;transition:color .25s}
.newslist a:hover .newslist__more{color:var(--orange)}
@media (max-width:640px){
  .newslist a{grid-template-columns:1fr;gap:10px;padding:24px 0}
  .newslist__more{padding-top:0}
}

/* ==========================================================================
   V3 修复层（依三方审查意见）
   ========================================================================== */

/* 1. 进场动画改用 translate，避免压掉 .card/.pains 的 hover transform */
html.js [data-reveal]{opacity:0;translate:0 16px;transform:none;transition:opacity .6s var(--ease),translate .6s var(--ease)}
html.js [data-reveal].is-in{opacity:1;translate:0 0;transform:none}

/* 2. 标题层级由 h4 改 h3 后同步样式（6 个详情页 / 首页步骤与边界 / 页脚） */
.causes h3{font-size:15.5px;margin:0 0 6px;font-weight:700}
.flow h3{font-size:16px;margin:0 0 7px}
.steps h3{font-size:16px;margin:0 0 8px}
.notes h3{font-size:15.5px;margin:0 0 12px;display:flex;gap:9px;align-items:center;font-weight:700}
.notes h3 svg{width:15px;height:15px;color:var(--stone-l);flex:0 0 auto}
.foot h2{font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.5);margin:0 0 18px;font-weight:600}

/* 3. 对比度：小字灰提到 AA（4.79:1），原 #938B82 仅用于线与图标 */
:root{--stone-l:#776E64}
.eyebrow,.crumb,.hero__note,.certs__tag,.newslist time,.form__note,.certs__note,.pains .tag,.clients__col h3{color:#776E64}
.foot__bar,.foot__bar a{color:rgba(255,255,255,.56)}
.foot h2{color:rgba(255,255,255,.5)}
.field input::placeholder,.field textarea::placeholder{color:#8A8279}
.form__hint{color:#776E64}

/* 4. 导航：1120 起切汉堡，避免 861–1100 溢出裁掉按钮 */
@media (max-width:1120px){
  .nav__burger{display:block}
  .nav__tel{display:none}
  .nav__menu{gap:20px}
}
@media (max-width:1120px){
  .nav__menu{
    position:fixed;top:104px;left:0;right:0;bottom:0;z-index:59;flex-direction:column;align-items:stretch;gap:0;
    background:var(--paper);padding:8px 32px 120px;overflow-y:auto;border-top:1px solid var(--line);
    visibility:hidden;transform:translateX(100%);transition:transform .3s var(--ease),visibility .3s;
  }
  .nav__menu.is-open{visibility:visible;transform:none}
  .nav__menu a{padding:18px 0;font-size:17px;border-bottom:1px solid var(--line)}
}
/* 底部悬浮条只在真手机出现（<=860），平板不占屏 */
@media (max-width:860px){
  .mbar{display:flex}
  body{padding-bottom:calc(72px + env(safe-area-inset-bottom))}
}
@media (max-width:860px){
  .brand__txt span{display:none}
  .nav__menu{top:100px}
}
@media (max-width:400px){
  .nav__end .btn--sm{display:none}
}

/* 5. 两栏内联 gap 在窄屏收窄（内联样式需 !important 覆盖） */
@media (max-width:860px){
  .grid2{gap:32px !important}
  .grid3{grid-template-columns:1fr}
}
@media (max-width:1024px){
  .grid3{grid-template-columns:repeat(2,1fr)}
}

/* 6. 通栏图：不用 100vw，避免滚动条导致的左右各偏 7.5px */
.bleed{width:auto;margin:0}
.bleed figcaption{left:max(32px,calc((100% - 1180px)/2 + 32px))}

/* 7. 底部悬浮条：实际高度 74px，补足并处理安全区 */
.mbar{padding:10px 14px calc(10px + env(safe-area-inset-bottom))}
.mbar a{line-height:1.4;padding:10px 0}

/* 8. 竖排标签：之前 left:-6px 落在负值区被裁掉，改为贴正文左栏外侧 */
.sec__has-vlabel .wrap{position:relative}
.vlabel{left:auto;right:calc(100% - 12px);top:6px}

/* 9. 外链箭头只给真链接，静态卡片不加"↗" */
.card::after{content:none}
a.card::after{content:"↗";position:absolute;right:20px;top:16px;font-size:14px;color:var(--orange);opacity:0;transform:translate(-5px,5px);transition:opacity .3s,transform .3s var(--ease)}
a.card:hover::after{opacity:1;transform:none}
.card:hover{border-color:var(--line-d);transform:none}

/* 10. 列表链接：移除下划线展开，避免叠出第二条线；用位移代替 padding 抖动 */
.list-link a{background-image:none}
.list-link a:hover{background-size:0 0;padding-left:0;translate:8px 0;color:var(--ink)}

/* 11. 键盘焦点可见 */
a:focus-visible,summary:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--orange);outline-offset:3px;border-radius:2px
}
.faq__q:focus-visible{outline-offset:-2px}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--orange);outline-offset:1px;border-color:var(--ink)}

/* 12. 行宽收敛到可读区间（中文 30–34 字） */
.prose{max-width:34em}
.prose p{max-width:34em}
.faq__a{max-width:32em}
.pains p,.newslist p{max-width:30em}
.phead p,.sec__head p{max-width:32em}

/* 13. 页脚品牌大字：3.2% 在白底上几乎不可见，提到 5.5% 并限幅 */
.foot__big{color:rgba(255,255,255,.055);font-size:clamp(96px,13vw,220px);letter-spacing:-.02em}

/* 14. 中文标题不做负字距（笔画会贴） */
h1,h2,h3,h4{letter-spacing:0}
.hero h1{letter-spacing:-.01em;line-height:1.3}

/* 15. 数字区：等宽数字 + 橙色后缀，读数更稳 */
.stats b{font-variant-numeric:tabular-nums;letter-spacing:0}
.stats b em{font-size:.34em;color:var(--orange);font-weight:600;margin-left:8px;vertical-align:.22em}

/* 16. reduced-motion 补齐（原来只覆盖了一部分） */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .imgfade{filter:none;opacity:1}
  .zrow__fig:hover img,.card:hover,.btn:hover{transform:none}
  .contact::before{display:none}
}

/* 17. 首屏跳转链接（键盘用户） */
.skip{position:absolute;left:-9999px;top:0;z-index:999;padding:12px 18px;background:var(--ink);color:#fff;font-size:14px;border-radius:0 0 4px 0}
.skip:focus{left:0;top:0}

/* 仅为读屏与标题层级存在的隐藏标题 */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 品牌标志：实底绿 logo（替换原 SVG 水滴） ---------- */
.brand__mark{width:40px;height:40px;border:0;border-radius:7px;overflow:hidden;display:block;background:#009A44;
  box-shadow:0 1px 2px rgba(23,21,20,.12);transition:width .3s var(--ease),height .3s var(--ease)}
.brand__mark img{width:100%;height:100%;object-fit:cover;display:block;border-radius:inherit}
.nav.is-scrolled .brand__mark{width:32px;height:32px}
.foot__brand .brand__mark{border-color:transparent;box-shadow:0 1px 3px rgba(0,0,0,.35)}
.foot__brand b{letter-spacing:.06em}