/* 尚屿装饰官网 — 暖白+墨绿，稳重可信的装修公司风格 */
:root{
  --ink:#1c2420; --mut:#6b7570; --pri:#14594a; --pri-d:#0e4438; --pri-l:#e6f0ed;
  --bg:#faf8f4; --card:#ffffff; --line:#e7e3da; --gold:#b98a2f; --gold-b:#d9b45a;
  --dark:#14181c; --dark2:#101511;
  --r:14px; --shadow:0 10px 30px rgba(28,36,32,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font:16px/1.75 "PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--bg)}
img{max-width:100%;display:block}
a{color:var(--pri);text-decoration:none}
h1,h2{line-height:1.3;letter-spacing:.5px}
h1{font-size:clamp(26px,4vw,40px)}
h2{font-size:clamp(22px,3vw,30px);margin-bottom:18px}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
.sec{padding:64px 22px}
.center{text-align:center}
.muted{color:var(--mut);font-size:14px}
.eyebrow{font-size:12px;letter-spacing:3px;text-transform:uppercase;color:var(--gold);font-weight:600;margin-bottom:6px}
.sec-sub{color:var(--mut);max-width:640px;margin:-8px 0 28px}
.band{background:linear-gradient(180deg,#f3efe7, var(--bg))}
.more{text-align:center;margin-top:28px}

/* 顶栏 */
.topbar{position:sticky;top:0;z-index:50;background:rgba(250,248,244,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar-in{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.logo{width:38px;height:38px;border-radius:10px;background:var(--pri);color:#fff;display:grid;place-items:center;font-size:20px;font-weight:700}
.brand-t{font-weight:700;font-size:17px;display:flex;flex-direction:column;line-height:1.2}
.brand-t small{font-weight:400;font-size:11px;color:var(--mut);letter-spacing:1px;white-space:nowrap}
.brand.light{color:#fff}
.nav{display:flex;gap:1px;margin-left:auto}
.nav-link{padding:8px 7px;border-radius:8px;color:#3d463f;font-size:13.5px;white-space:nowrap}
.nav-link:hover{background:var(--pri-l)}
.nav-link.on{color:var(--pri);font-weight:600;background:var(--pri-l)}
.bar-cta{display:flex;align-items:center;gap:12px;margin-left:8px}
.tel{font-weight:700;color:var(--pri);white-space:nowrap}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:8px;font-size:20px;padding:4px 10px;color:var(--ink)}

/* 按钮 */
.btn{display:inline-block;padding:10px 22px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:.15s;white-space:nowrap}
.btn-primary{background:var(--pri);color:#fff}
.btn-primary:hover{background:var(--pri-d)}
.btn-ghost{border-color:var(--pri);color:var(--pri);background:transparent}
.btn-ghost:hover{background:var(--pri-l)}
.hero .btn-ghost{border-color:rgba(255,255,255,.75);color:#fff;background:rgba(255,255,255,.08)}
.hero .btn-ghost:hover{background:rgba(255,255,255,.18)}
.btn-s{padding:7px 14px;font-size:14px}
.btn-l{padding:13px 30px;font-size:16px}

/* 首屏 */
.hero{min-height:520px;display:flex;align-items:center;position:relative;overflow:hidden}
.hero-slides,.hero-slide{position:absolute;inset:0}
.hero-slide{background-size:cover;background-position:center;opacity:0;transition:opacity .9s ease}
.hero-slide.on{opacity:1}
.hero-cap{position:absolute;right:18px;bottom:16px;color:#fff;font-size:12.5px;background:rgba(16,24,20,.5);padding:4px 12px;border-radius:999px;letter-spacing:1px}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,24,20,.78) 0%,rgba(16,24,20,.45) 55%,rgba(16,24,20,.15) 100%);z-index:1}
.hero-dots{position:absolute;left:50%;transform:translateX(-50%);bottom:64px;display:flex;gap:8px;z-index:4}
.hero-dots button{width:26px;height:4px;border-radius:2px;border:none;background:rgba(255,255,255,.4);cursor:pointer;padding:0}
.hero-dots button.on{background:#fff}
.hero-in{position:relative;color:#fff;padding-top:40px;padding-bottom:40px;z-index:2}
.capsule{display:inline-block;border:1px solid rgba(255,255,255,.5);border-radius:999px;padding:5px 16px;font-size:13px;letter-spacing:1px;margin-bottom:18px;background:rgba(255,255,255,.08)}
.hero h1{font-size:clamp(32px,5vw,52px);margin-bottom:14px;text-shadow:0 2px 14px rgba(0,0,0,.25)}
.hero-sub{max-width:600px;font-size:16px;color:#e8ebe9;margin-bottom:26px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}

/* 承诺条 */
.promises{list-style:none;display:grid;grid-template-columns:repeat(6,1fr);gap:10px;padding-top:18px;padding-bottom:6px}
.promises li{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 8px;text-align:center;font-size:13px;font-weight:600;color:var(--pri)}

/* 数据 */
.stats-b{padding:34px 0}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;text-align:center}
.stat b{font-size:clamp(26px,3.4vw,38px);color:var(--pri);display:block;line-height:1.2}
.stat span{font-size:13px;color:var(--mut)}

/* 套餐卡 */
.pkg-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:30px;max-width:720px}
.pkg-price{display:flex;align-items:baseline;gap:6px;margin:6px 0 12px}
.pkg-price b{font-size:clamp(30px,4vw,44px);color:var(--pri)}
.pkg-price span{color:var(--mut)}
.pkg-desc{margin-bottom:14px}
.pkg-items{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:14px}
.pkg-items li{padding-left:24px;position:relative;font-size:14.5px}
.pkg-items li::before{content:"✓";position:absolute;left:2px;color:var(--pri);font-weight:700}
.pkg-pay{font-size:13.5px;color:var(--gold);font-weight:600;margin-bottom:18px}

/* 流程 */
.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;counter-reset:st}
.steps li{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;position:relative}
.step-n{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--pri);color:#fff;font-weight:700;margin-bottom:10px}
.steps b{display:block;margin-bottom:4px}
.steps p{font-size:14px;color:var(--mut)}

/* 卡片 */
.cards{display:grid;gap:16px}
.g2{grid-template-columns:1fr 1fr}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g5{grid-template-columns:repeat(5,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;position:relative;display:flex;flex-direction:column;gap:8px}
.card b{font-size:16.5px}
.card p{font-size:14px;color:var(--mut)}
.tag{display:inline-block;font-size:12px;color:var(--gold);border:1px solid currentColor;border-radius:999px;padding:1px 10px;align-self:flex-start}
.ribbon{position:absolute;top:14px;right:-6px;background:var(--gold);color:#fff;font-size:12px;padding:3px 12px;border-radius:6px 0 0 6px}
.plan.recommend{border-color:var(--pri);box-shadow:var(--shadow)}
.plan-name{font-size:18px}
.brand-card{align-items:center;text-align:center}
.brand-card span{font-size:13.5px;color:var(--mut)}

/* 案例/文章卡 */
.case-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:block;color:var(--ink)}
.case-card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.case-card>div{padding:16px 18px;display:flex;flex-direction:column;gap:2px}
.case-card span{font-size:13px;color:var(--mut)}
.case-card:hover{box-shadow:var(--shadow)}
.post-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;color:var(--ink)}
.post-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.post-body{padding:16px 18px;display:flex;flex-direction:column;gap:6px}
.post-body .meta{font-size:12.5px;color:var(--mut)}
.post-body b{font-size:15.5px;line-height:1.5}
.post-body p{font-size:13.5px;color:var(--mut);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-card:hover{box-shadow:var(--shadow)}

/* 图集 */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.ph{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.ph img{aspect-ratio:4/3;object-fit:cover;width:100%;cursor:zoom-in;transition:.25s}
.ph img:hover{transform:scale(1.03)}
.ph figcaption{font-size:12px;color:var(--mut);padding:6px 10px}

/* 页头 */
.page-head{padding:56px 0}
.page-head .sec-sub{margin:10px 0 0}

/* 清单 */
.checklist{list-style:none;display:grid;gap:8px;margin:10px 0}
.checklist li{font-size:15px}

/* 关于页 */
.about-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:36px;align-items:start}
.about-img img{border-radius:var(--r);aspect-ratio:4/3;object-fit:cover}
.about-img figcaption{font-size:13px;color:var(--mut);margin-top:8px}
.timeline{list-style:none;display:grid;gap:14px;max-width:680px}
.timeline li{display:flex;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 20px}
.timeline b{color:var(--pri);white-space:nowrap}
.timeline p{font-size:14.5px}

/* 联系页 */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:start}
.lead-card form{display:grid;gap:14px;margin-top:10px}
.lead-card label{display:grid;gap:6px;font-size:14px;font-weight:600}
.lead-card input{border:1px solid var(--line);border-radius:10px;padding:11px 14px;font-size:15px;background:#fdfcf9}
.lead-card input:focus{outline:2px solid var(--pri-l);border-color:var(--pri)}
.form-tip{font-size:12.5px;color:var(--mut)}
.big-tel a{font-size:26px;font-weight:700;color:var(--pri)}
.contact-side{display:grid;gap:16px}

/* 文章 */
.article{max-width:800px}
.crumb{font-size:13px;color:var(--mut);margin-bottom:14px}
.article .meta{color:var(--mut);font-size:14px;margin:8px 0 20px}
.art-cover{border-radius:var(--r);margin-bottom:22px}
.art-body{font-size:16.5px;line-height:1.9}
.art-body h2{font-size:22px;margin:28px 0 12px}
.art-body p{margin:12px 0}
.art-body ul,.art-body ol{margin:12px 0 12px 22px;display:grid;gap:6px}
.art-cta{margin-top:36px;background:var(--pri-l);border-radius:var(--r);padding:24px;display:grid;gap:8px}
.art-cta .btn{justify-self:start}

/* CTA */
.cta{text-align:center}
.cta p{margin:10px auto 20px;max-width:560px;color:var(--mut)}

/* 页脚 */
.foot{background:#141b18;color:#c9d2cd;margin-top:40px;padding:52px 0 26px;font-size:14px}
.foot-in{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:32px}
.foot h4{color:#fff;margin-bottom:12px;font-size:15px}
.foot a{color:#c9d2cd;display:block;margin:6px 0}
.foot a:hover{color:#fff}
.foot a.tel-l{display:inline}
.foot .muted{color:#8b968f}
.foot-bt{display:flex;gap:16px;flex-wrap:wrap;border-top:1px solid #263029;margin-top:36px;padding-top:18px;font-size:12.5px;color:#8b968f}
.icp{color:#8b968f}
.tel-l{font-weight:700}

/* 浮动条（移动端） */
.float-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;background:var(--pri);color:#fff}
.float-bar a{flex:1;text-align:center;color:#fff;padding:13px 0;font-weight:600;font-size:15px}
.float-bar a+a{border-left:1px solid rgba(255,255,255,.2)}

/* 灯箱 */
.lightbox{position:fixed;inset:0;background:rgba(10,14,12,.92);z-index:100;display:none;align-items:center;justify-content:center}
.lightbox.on{display:flex}
.lightbox img{max-width:92vw;max-height:86vh;border-radius:8px}
.lightbox .lb-x{position:absolute;top:14px;right:18px;color:#fff;font-size:30px;background:none;border:none;cursor:pointer}
.lightbox .lb-n{position:absolute;top:50%;transform:translateY(-50%);color:#fff;font-size:38px;background:none;border:none;cursor:pointer;padding:20px}
.lb-prev{left:6px}.lb-next{right:6px}

/* 响应式 */
@media (max-width:960px){
  .promises{grid-template-columns:repeat(3,1fr)}
  .g4,.g5{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .about-grid,.contact-grid{grid-template-columns:1fr}
  .foot-in{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  .nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:10px 16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .burger{display:block}
  .tel{display:none}
  .g2,.g3,.g4,.g5{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .pkg-items{grid-template-columns:1fr}
  .promises{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .foot-in{grid-template-columns:1fr}
  body{padding-bottom:48px}
  .float-bar{display:flex}
  .sec{padding:44px 22px}
}

/* ===== 海报式首页（大站风格）===== */
@media (min-width:961px){
  html{scroll-snap-type:y proximity}
  .fp{scroll-snap-align:start;min-height:100vh;display:flex;flex-direction:column;justify-content:center}
  .hero.fp{min-height:100vh}
}
.fp{padding:56px 0;position:relative}
.sec-center{text-align:center}
.sec-center .sec-sub{margin-left:auto;margin-right:auto}
.sec-center-in{padding:56px 22px;max-width:1120px;margin:0 auto}
.dark{background:var(--dark);color:#e8ebe9}
.dark .h-light{color:#fff}
.dark .sec-sub.light,.sec-sub.light{color:#a8b2ac}
.eyebrow.gold{color:var(--gold-b)}
.h-light{color:#fff}
.gold-t{color:var(--gold-b)}
.veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,16,13,.82),rgba(12,16,13,.72))}
.promises-dark{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:980px;margin:0 auto 28px;text-align:left}
.promises-dark li{display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);border-radius:12px;padding:18px 20px;font-weight:600;color:#f2f4f2;font-size:16.5px}
.pk{display:inline-grid;place-items:center;min-width:30px;height:30px;border-radius:50%;background:var(--gold-b);color:#1c1913;font-weight:800}
.stats-dark{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:980px;margin:0 auto}
.stat-dark b{display:block;font-size:clamp(38px,5vw,60px);color:var(--gold-b);font-weight:800;line-height:1.15}
.stat-dark span{font-size:14px;color:#a8b2ac}
.pkg-hero{max-width:760px;margin:0 auto;padding:40px}
.card-glass{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);backdrop-filter:blur(4px)}
.card-glass b{color:#fff}
.card-glass span{color:#c6cdc8}
.steps-dark li{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.09)}
.steps-dark li p{color:#a8b2ac}
.btn-gold{background:var(--gold-b);color:#1c1913}
.btn-gold:hover{background:#e3c06c}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;background:rgba(16,24,20,.35);border:1px solid rgba(255,255,255,.3);color:#fff;font-size:34px;width:52px;height:52px;border-radius:50%;cursor:pointer;line-height:1;transition:.2s}
.hero-arrow:hover{background:rgba(16,24,20,.6)}
.ha-l{left:22px}.ha-r{right:22px}
.scroll-hint{position:absolute;left:50%;transform:translateX(-50%);bottom:16px;z-index:4;color:rgba(255,255,255,.85);font-size:26px;text-decoration:none;animation:bob 1.8s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}
.quick-rail{position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:70;display:flex;flex-direction:column;gap:2px}
.quick-rail a,.quick-rail button{display:flex;flex-direction:column;align-items:center;gap:3px;width:76px;padding:13px 4px;background:var(--dark);color:#e8ebe9;border:none;border-bottom:1px solid rgba(255,255,255,.08);font-size:12.5px;cursor:pointer;transition:.2s}
.quick-rail span{font-size:19px}
.quick-rail a:hover,.quick-rail button:hover{background:var(--gold-b);color:#1c1913}
.quick-rail button:first-of-type{border-bottom:none}
/* 首页导航：深色透明→滚动变实 */
body.home .topbar{position:fixed;left:0;right:0;background:transparent;border-bottom-color:transparent;transition:.3s}
body.home .topbar .nav-link{color:rgba(255,255,255,.92)}
body.home .topbar .nav-link.on{background:rgba(255,255,255,.14);color:#fff}
body.home .topbar .nav-link:hover{background:rgba(255,255,255,.12)}
body.home .topbar .brand-t,body.home .topbar .brand{color:#fff}
body.home .topbar .brand-t small{color:rgba(255,255,255,.65)}
body.home .topbar .tel{color:var(--gold-b)}
body.home .topbar.scrolled{background:rgba(20,24,28,.94);border-bottom-color:rgba(255,255,255,.08)}
main{padding-top:0}
@media (max-width:960px){
  .promises-dark{grid-template-columns:1fr 1fr}
  .stats-dark{grid-template-columns:repeat(2,1fr)}
  .quick-rail{display:none}
  .fp{min-height:0;padding:48px 0}
  .hero.fp{min-height:100svh}
  .hero-arrow{display:none}
}
.dark .btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.dark .btn-ghost:hover{background:rgba(255,255,255,.1)}

/* ===== 视觉升级：衬线标题 / 页头深色 / 入场动画 ===== */
h1,h2,.hero h1{font-family:"Noto Serif SC","Songti SC","STSongti-SC","SimSun",serif;font-weight:700;letter-spacing:.5px}
.page-head{background:linear-gradient(160deg,#14181c,#1c2620);color:#fff;padding:72px 0}
.page-head .eyebrow{color:var(--gold-b)}
.page-head .sec-sub{color:#a8b2ac;margin:12px 0 0}
.hero-slide{transform:scale(1.04)}
.hero-slide.on{animation:kb 8s ease-out forwards}
@keyframes kb{from{transform:scale(1.04)}to{transform:scale(1.12)}}
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}.hero-slide{transform:none}.hero-slide.on{animation:none}}

/* 内页照片大片页头 */
.ph-hero{position:relative;background-size:cover;background-position:center;min-height:440px;display:flex;align-items:center}
.ph-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,16,13,.72),rgba(12,16,13,.55))}
.ph-hero .wrap{position:relative;z-index:2;width:100%}
.ph-hero h1{color:#fff;font-size:clamp(30px,4.6vw,50px);text-shadow:0 2px 16px rgba(0,0,0,.35)}
.ph-hero .eyebrow{color:var(--gold-b)}
.ph-hero .sec-sub{color:#cfd6d0;max-width:720px;margin:14px 0 0;font-size:16.5px}
@media (max-width:960px){.ph-hero{min-height:300px}}