:root{
  --ink:#10262E; --brand:#1F6F78; --brand-dk:#14545C; --brand-lt:#E7F1F2;
  --sand:#C9A227; --sand-lt:#FAF4E2; --mist:#F4F8F8; --line:#DCE6E7;
  --text:#2C3A3F; --muted:#6B7C81; --bg:#fff;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --serif:"Songti SC","Noto Serif SC",Georgia,"Source Han Serif SC",serif;
  --r:4px; --wrap:1180px;
  --sh:0 1px 2px rgba(16,38,46,.04);
  --sh-hover:0 10px 30px -12px rgba(16,38,46,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --ease-back:cubic-bezier(.34,1.46,.64,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scrollbar-gutter:stable;overflow-x:clip;}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;overflow-x:hidden;}
img{max-width:100%;display:block;}
picture{display:contents;}
a{color:inherit;text-decoration:none;}
h1,h2,h3{color:var(--ink);line-height:1.35;margin:0 0 .6em;font-weight:600;letter-spacing:.01em;}
h1{font-size:clamp(25px,3.4vw,40px);}
h2{font-size:clamp(19px,2.2vw,26px);}
h3{font-size:17px;}
p{margin:0 0 1em;}
.dim{color:var(--muted);}
.small{font-size:13px;}
.mt{margin-top:56px;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.wrap.narrow{max-width:760px;}
.pad{padding-top:76px;padding-bottom:76px;}
.serif{font-family:var(--serif);}

/* ---------------- 头部与移动端菜单 ---------------- */
.site-head{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.93);
  backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line);}
.head-inner{display:flex;align-items:center;gap:28px;height:66px;}
.brand{display:flex;align-items:baseline;gap:8px;flex:none;}
.brand-mark{font-size:20px;font-weight:700;color:var(--ink);letter-spacing:.16em;}
.brand-sub{font-size:12px;color:var(--brand);letter-spacing:.2em;}
.nav{display:flex;gap:26px;margin-left:auto;font-size:15px;}
.nav a{position:relative;color:var(--text);padding:6px 0;}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--sand);transform:scaleX(0);transform-origin:left;
  transition:transform .32s var(--ease);}
.nav a:hover::after,.nav a.on::after{transform:scaleX(1);}
.nav a:hover,.nav a.on{color:var(--brand);}
.head-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.head-actions .btn{margin-left:0;}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r);cursor:pointer;padding:0;position:relative;transition:.2s;}
.nav-toggle:hover{border-color:var(--brand);}
.nav-toggle span{position:absolute;left:11px;right:11px;height:1.5px;background:var(--ink);
  border-radius:2px;transition:transform .3s var(--ease),opacity .2s;}
.nav-toggle span:nth-child(1){top:14px;}
.nav-toggle span:nth-child(2){top:20px;}
.nav-toggle span:nth-child(3){top:26px;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

@media(max-width:900px){
  .head-inner{gap:12px;height:62px;position:relative;}
  .nav-toggle{display:block;}
  .head-actions{margin-left:auto;}
  .nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;
    background:#fff;border-bottom:1px solid var(--line);padding:4px 24px 14px;
    display:none;box-shadow:0 18px 34px -22px rgba(16,38,46,.45);}
  .nav.open{display:flex;animation:navDrop .38s var(--ease-out);}
  .nav a{padding:13px 0;border-bottom:1px solid var(--mist);font-size:16px;
    transition:padding-left .28s var(--ease-out),color .2s;}
  .nav a:hover,.nav a.on{padding-left:6px;}
  .nav a:last-child{border-bottom:0;}
  .nav a::after{display:none;}
}
@keyframes navDrop{from{opacity:0;transform:translateY(-10px);}to{opacity:1;transform:none;}}
.nav-backdrop{position:fixed;inset:0;background:rgba(10,28,34,.36);z-index:55;
  opacity:0;transition:opacity .32s var(--ease-out);}
.nav-backdrop.show{opacity:1;}
@media(min-width:901px){.nav-backdrop{display:none;}}

/* ---------------- 按钮 ---------------- */
.btn{display:inline-block;background:var(--brand);color:#fff;padding:12px 26px;
  border-radius:var(--r);font-size:15px;border:1px solid var(--brand);cursor:pointer;
  font-family:inherit;line-height:1.5;
  transition:background .22s var(--ease),border-color .22s var(--ease),
             transform .22s var(--ease),box-shadow .22s var(--ease);}
.btn:hover{background:var(--brand-dk);border-color:var(--brand-dk);
  transform:translateY(-2px) scale(1.025);box-shadow:0 10px 24px -10px rgba(31,111,120,.75);}
.btn:active{transform:translateY(0) scale(.985);box-shadow:none;}
.btn-sm{padding:8px 18px;font-size:14px;}
.btn-lg{padding:15px 40px;font-size:16px;}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;
  box-shadow:0 8px 20px -12px rgba(0,0,0,.5);}
a:focus-visible,.btn:focus-visible,button:focus-visible,input:focus-visible,
select:focus-visible,textarea:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* ---------------- 首屏 ---------------- */
.hero{position:relative;background:linear-gradient(158deg,#0B2229,#12333C 48%,#1F6F78);
  color:#fff;padding:104px 0 116px;overflow:hidden;}
.hero-bg{position:absolute;inset:0;overflow:hidden;}
.hero-bg picture,.hero-bg img{display:block;width:100%;height:100%;}
.hero-bg img{object-fit:cover;object-position:center;opacity:.26;filter:saturate(.9);
  transform:scale(1.09);transform-origin:center;}
.hero-inner{position:relative;z-index:2;}
.hero-kicker{color:#9CC9CD;letter-spacing:.28em;font-size:13px;margin:0 0 20px;}
.hero h1{color:#fff;font-family:var(--serif);font-size:clamp(28px,4.4vw,52px);
  line-height:1.45;margin:0 0 20px;font-weight:600;}
.hero-lead{color:#C6DEE1;max-width:600px;font-size:16.5px;line-height:2;margin-bottom:0;}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap;}

/* ---------------- 滚动进场（仅在 JS 可用时隐藏，避免 JS 失败导致内容不可见） ---------------- */
html.js .reveal{opacity:0;transform:translateY(36px);
  transition:opacity .95s var(--ease-out),transform .95s var(--ease-out);}
html.js .reveal.in{opacity:1;transform:none;}
html.js .reveal.no-anim{transition:none;}
html.no-js .reveal{opacity:1;transform:none;}

/* 图片帘幕：卡片图从下往上展开 */
html.js .reveal .thumb,html.js .reveal .cover,html.js .reveal .case-thumb{
  clip-path:inset(0 0 100% 0);}
html.js .reveal.in .thumb,html.js .reveal.in .cover,html.js .reveal.in .case-thumb{
  clip-path:inset(0 0 0 0);transition:clip-path 1.1s var(--ease-out) .05s;}
html.no-js .reveal .thumb,html.no-js .reveal .cover,html.no-js .reveal .case-thumb{clip-path:none;}

/* 滚动进度条 */
.scroll-progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:100;
  background:linear-gradient(90deg,var(--brand),var(--sand));
  transition:width .12s linear;pointer-events:none;}

/* 首屏标题不做任何入场动画 */

/* 节标题下的短金线生长 */
.sec-head h2::after{content:"";display:block;width:42px;height:2px;background:var(--sand);
  margin-top:12px;transform:scaleX(0);transform-origin:left;
  transition:transform .9s var(--ease-out) .18s;}
.sec-head.in h2::after{transform:scaleX(1);}

/* 平面卡片的光标跟随光晕 */
.pop-lit{position:relative;overflow:hidden;}
.pop-lit::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;
  background:radial-gradient(320px circle at var(--mx,50%) var(--my,50%),rgba(31,111,120,.12),transparent 64%);
  transition:opacity .55s var(--ease-out);}
.pop-lit:hover::before{opacity:1;}

/* ---------------- 通用区块 ---------------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.sec-head h2{margin-bottom:6px;}
.more{color:var(--brand);font-size:14.5px;position:relative;padding-bottom:2px;}
.more::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--brand);transform:scaleX(.6);transform-origin:left;
  transition:transform .3s var(--ease);}
.more:hover::after{transform:scaleX(1);}
.band{background:var(--mist);}

/* ---------------- 三条承诺（无彩色边） ---------------- */
.promise-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.promise{background:#fff;border:1px solid var(--line);padding:28px 26px;border-radius:var(--r);
  transition:transform .42s var(--ease-out),box-shadow .42s var(--ease-out),border-color .42s var(--ease-out);}
.promise:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#C9D9DB;}
.promise-no{font-size:12px;letter-spacing:.3em;color:var(--sand);margin-bottom:10px;}
.promise h3{margin-bottom:8px;}
.promise p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.85;}

/* ---------------- 网格与卡片 ---------------- */
.grid{display:grid;gap:24px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
.card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;box-shadow:var(--sh);
  transition:transform .42s var(--ease-out),box-shadow .42s var(--ease-out),border-color .42s var(--ease-out);}
.card:hover{transform:translateY(-6px);box-shadow:var(--sh-hover);border-color:#C9D9DB;}
.card .thumb,.card .cover{aspect-ratio:4/5;overflow:hidden;background:var(--mist);}
.card .thumb img,.card .cover img{width:100%;height:100%;object-fit:cover;
  transition:transform .85s var(--ease-out);}
.card:hover .thumb img,.card:hover .cover img{transform:scale(1.06);}
.card-body{padding:18px 18px 20px;}
.card h3{font-size:16px;margin-bottom:6px;}
.card p{margin:0;font-size:14px;}
.card-tags{display:flex;gap:8px;margin-bottom:10px;flex-wrap:wrap;}
.card-link{padding:30px 26px;}

.tag{display:inline-block;font-size:12px;padding:2px 10px;border-radius:20px;
  background:var(--brand-lt);color:var(--brand-dk);}
.tag-line{background:transparent;border:1px solid var(--line);color:var(--muted);}
.meta-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px;}

.card-photo{text-align:center;padding:26px 18px;}
.card-photo .avatar{width:96px;height:96px;border-radius:50%;overflow:hidden;
  margin:0 auto 14px;background:var(--mist);}
.card-photo .avatar img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card-photo:hover .avatar img{transform:scale(1.06);}
.card-photo h3{margin-bottom:4px;}
.card-photo .lv{font-size:11px;color:var(--sand);border:1px solid var(--sand);
  border-radius:20px;padding:1px 8px;vertical-align:middle;}
.card-photo .stat{font-size:13px;color:var(--muted);margin-top:6px;}
.card-photo-lg{text-align:left;padding:0;}
.card-photo-lg .cover{aspect-ratio:4/3;}
.card-photo-lg .card-body{padding:18px;}

/* ---------------- 表格（移动端可横滑） ---------------- */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 6px;}
.table-wrap table{margin-bottom:0;}
.table-hint{display:none;font-size:12.5px;color:var(--muted);margin:0 0 18px;}
.price-table{width:100%;border-collapse:collapse;font-size:15px;background:#fff;}
.price-table th{background:var(--brand);color:#fff;text-align:left;padding:14px 16px;
  font-weight:600;font-size:14px;white-space:nowrap;}
.price-table td{padding:15px 16px;border-bottom:1px solid var(--line);vertical-align:top;
  transition:background .2s;}
.price-table tbody tr:hover td{background:#F2F8F8;}
.price-table tbody tr:nth-child(even) td{background:#F9FCFC;}
.price-table tbody tr:nth-child(even):hover td{background:#F2F8F8;}
.price-table tbody tr:last-child td{border-bottom:1px solid var(--line);}
.price-table .price{font-weight:600;color:var(--brand-dk);white-space:nowrap;}
.price-table-lg{font-size:15.5px;}
.price-table .small{line-height:1.6;margin-top:4px;}

/* ---------------- 步骤 ---------------- */
.steps{margin:0;padding-left:22px;}
.steps li{margin-bottom:12px;padding-left:4px;}
.steps li::marker{color:var(--brand);font-weight:600;}

/* ---------------- 品牌故事条 ---------------- */
.story-band{background:var(--sand-lt);padding:84px 0;}
.story-band h2{font-family:var(--serif);font-size:clamp(21px,2.6vw,30px);margin-bottom:24px;}
.serif-body{font-family:var(--serif);font-size:16.5px;line-height:2.1;color:#243438;margin-bottom:1.2em;}
.story p{font-family:var(--serif);font-size:16.5px;line-height:2.15;color:#243438;margin-bottom:1.5em;}
.story-h1{font-size:clamp(23px,3vw,34px);line-height:1.6;margin:0 0 2.4em;font-weight:700;}
.story-h3{text-align:center;letter-spacing:.5em;font-size:17px;margin:2.6em 0 1.6em;color:var(--brand-dk);}
.mission{background:linear-gradient(135deg,#0F3038,#1F6F78);color:#fff;padding:36px 40px;
  border-radius:var(--r);margin:2.4em 0;border:0;}
.mission p{color:#fff;font-family:var(--sans);font-size:19px;line-height:1.85;font-weight:600;margin-bottom:14px;}
.mission span{color:#C6E1E4;font-size:14.5px;line-height:1.9;display:block;}
.slogan-box{font-family:var(--serif);font-size:20px;text-align:center;color:var(--ink);
  background:var(--sand-lt);padding:30px 26px;border-radius:var(--r);margin:2em 0;line-height:1.9;}

/* ---------------- 客户评价（去掉彩色左边框） ---------------- */
.quote{margin:0;background:#fff;border:1px solid var(--line);padding:28px;
  border-radius:var(--r);position:relative;
  transition:transform .42s var(--ease-out),box-shadow .42s var(--ease-out),border-color .42s var(--ease-out);}
.quote:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#C9D9DB;}
.quote p{font-size:15px;line-height:1.95;color:var(--text);}
.quote cite{font-style:normal;font-size:13px;color:var(--muted);display:block;margin-top:14px;
  padding-top:14px;border-top:1px solid var(--mist);}

/* ---------------- CTA ---------------- */
.cta-band{background:#0E2A32;color:#fff;padding:70px 0;}
.cta-band h2{color:#fff;margin-bottom:10px;}
.cta-band .dim{color:#9CC0C4;}
.cta-inner{text-align:center;}
.cta-inner .btn{margin-top:22px;}
.cta-inline{border-radius:var(--r);padding:38px 40px;display:flex;align-items:center;
  justify-content:space-between;gap:24px;flex-wrap:wrap;margin-top:56px;background:var(--mist);}
.cta-inline h2{color:var(--ink);font-size:20px;margin-bottom:6px;}
.cta-inline .dim{color:var(--muted);margin:0;}

/* ---------------- 页头 ---------------- */
.page-head{background:var(--mist);padding:60px 0 50px;border-bottom:1px solid var(--line);}
.page-head h1{margin-bottom:10px;}
.page-head .dim{max-width:640px;margin:0;}

/* ---------------- 筛选 ---------------- */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:32px;}
.chip{font-size:14px;padding:8px 16px;border:1px solid var(--line);border-radius:20px;
  color:var(--muted);background:#fff;cursor:pointer;
  transition:background .22s var(--ease),border-color .22s var(--ease),
             color .22s var(--ease),transform .22s var(--ease-back);}
html.js .filters .chip{animation:chipIn .55s var(--ease-out) both;}
@keyframes chipIn{from{opacity:0;transform:translateY(10px) scale(.94);}}
.chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.chip.on{background:var(--brand);border-color:var(--brand);color:#fff;}

/* ---------------- 作品详情 ---------------- */
.crumb{font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.crumb a{color:var(--brand);}
.crumb span{margin:0 6px;color:var(--line);}
.lead{font-size:17px;line-height:1.95;color:#33474D;margin-bottom:1.6em;}
.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:34px 0;}
.gallery a{display:block;border-radius:var(--r);overflow:hidden;background:var(--mist);
  cursor:zoom-in;}
.gallery a:first-child{grid-column:1/-1;}
.gallery img{width:100%;height:auto;transition:transform .55s var(--ease),opacity .3s;}
.gallery a:hover img{transform:scale(1.03);}
.byline{display:flex;align-items:center;gap:16px;padding:20px 0;border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);margin:34px 0;flex-wrap:wrap;}
.byline-avatar{width:52px;height:52px;border-radius:50%;object-fit:cover;}

/* ---------------- 摄影师主页 ---------------- */
.profile-head{background:var(--mist);padding:56px 0;border-bottom:1px solid var(--line);}
.profile-inner{display:flex;gap:36px;align-items:flex-start;}
.profile-avatar{width:176px;height:176px;border-radius:var(--r);object-fit:cover;flex:none;}
.profile-text h1{margin:8px 0 14px;}
.profile-text .lv{font-size:13px;color:var(--sand);border:1px solid var(--sand);
  border-radius:20px;padding:2px 10px;vertical-align:middle;}
.profile-text .lead{font-size:16px;color:var(--text);}
.fact-list{display:flex;gap:38px;margin:0 0 26px;flex-wrap:wrap;}
.fact-list dt{font-size:12.5px;color:var(--muted);letter-spacing:.06em;}
.fact-list dd{margin:2px 0 0;font-weight:600;color:var(--ink);}

/* ---------------- 案例 ---------------- */
.case-list{display:grid;gap:28px;}
.case-item{display:grid;grid-template-columns:360px 1fr;gap:32px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  box-shadow:var(--sh);
  transition:transform .42s var(--ease-out),box-shadow .42s var(--ease-out),border-color .42s var(--ease-out);}
.case-item:hover{transform:translateY(-6px);box-shadow:var(--sh-hover);border-color:#C9D9DB;}
.case-thumb{aspect-ratio:4/3;overflow:hidden;background:var(--mist);}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.case-item:hover .case-thumb img{transform:scale(1.045);}
.case-body{padding:26px 30px 26px 0;}
.case-body h3{margin-bottom:8px;}
.case-result{color:var(--brand-dk);font-size:14.5px;margin:12px 0 0;background:var(--mist);
  padding:10px 14px;border-radius:var(--r);}
.case-blocks{margin:40px 0;}
.case-blocks > div{margin-bottom:26px;padding-bottom:26px;border-bottom:1px solid var(--line);}
.case-blocks > div:last-child{border-bottom:0;}
.case-blocks h3{color:var(--brand-dk);}
.case-blocks p{margin:0;color:var(--text);line-height:1.95;}

/* ---------------- 表单 ---------------- */
.booking-wrap{max-width:660px;margin:0 auto;}
.form .field{margin-bottom:24px;}
.form label{display:block;font-size:14.5px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.form .req{color:var(--sand);}
.form input,.form select,.form textarea{width:100%;padding:12px 14px;font-size:16px;
  font-family:inherit;color:var(--text);background:#fff;border:1px solid var(--line);
  border-radius:var(--r);transition:border-color .2s,box-shadow .2s;}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;
  border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-lt);}
.form textarea{resize:vertical;line-height:1.75;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.hint{font-size:13px;color:var(--muted);margin:8px 0 0;}
/* 反垃圾蜜罐：人看不到，爬虫会填 */
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;opacity:0;pointer-events:none;}
.notice{padding:30px 32px;border-radius:var(--r);margin-bottom:32px;background:var(--mist);}
.notice.ok{animation:popIn .45s var(--ease);}
.notice.err{background:#FDF4F2;color:#8A3A28;}
.notice.err ul{margin:8px 0 0;padding-left:20px;}
.notice h2{margin-bottom:12px;}
@keyframes popIn{from{opacity:0;transform:scale(.98);}to{opacity:1;transform:none;}}
.empty{color:var(--muted);padding:60px 0;text-align:center;}

/* ---------------- 灯箱 ---------------- */
.lightbox{position:fixed;inset:0;background:rgba(9,26,32,.94);z-index:200;
  display:flex;align-items:center;justify-content:center;padding:20px;cursor:zoom-out;
  animation:fadeIn .25s var(--ease);}
.lightbox img{max-width:100%;max-height:100%;object-fit:contain;
  animation:zoomIn .32s var(--ease);}
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}
@keyframes zoomIn{from{opacity:0;transform:scale(.94);}to{opacity:1;transform:none;}}

/* ---------------- 页脚 ---------------- */
.site-foot{background:#0E2A32;color:#9CC0C4;padding:60px 0 26px;font-size:14px;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
  padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12);}
.foot-brand{color:#fff;font-size:17px;letter-spacing:.1em;margin-bottom:10px;}
.foot-line{margin:0 0 6px;line-height:1.8;}
.foot-line.dim{color:#6F9398;}
.foot-title{color:#fff;font-size:14px;margin-bottom:12px;letter-spacing:.08em;}
.site-foot a{display:block;margin-bottom:8px;color:#9CC0C4;transition:color .2s,transform .2s var(--ease);}
.site-foot a:hover{color:#fff;transform:translateX(3px);}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;padding-top:22px;
  font-size:12.5px;color:#6F9398;flex-wrap:wrap;}

/* ================= 交互动效 ================= */
/* 页头：滚动时微收缩 + 投影 */
.head-inner{transition:height .34s var(--ease);}
.site-head{transition:box-shadow .34s var(--ease),background .34s var(--ease);}
.site-head.scrolled{box-shadow:0 8px 28px -22px rgba(16,38,46,.55);background:rgba(255,255,255,.985);}
.site-head.scrolled .head-inner{height:54px;}

/* 首屏背景：静态，不做入场动画，也不加 will-change（iOS 微信上会闪） */

/* 图片占位：加载前显示 24px 缩略图背景，不再出现空白块 */
img[data-ph]{background-size:cover;background-position:center;background-repeat:no-repeat;}

/* 按钮上划过的光 */
.btn{position:relative;overflow:hidden;}
.btn::after{content:"";position:absolute;top:0;bottom:0;left:-140%;width:55%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.30),transparent);
  transform:skewX(-18deg);transition:left .68s var(--ease);pointer-events:none;}
.btn:hover::after{left:150%;}
.btn-ghost::after{background:linear-gradient(100deg,transparent,rgba(255,255,255,.20),transparent);}

/* 卡片按下反馈 */
.card:active{transform:translateY(-1px) scale(.994);}

/* 数字滚动 */
.count{font-variant-numeric:tabular-nums;}

/* 回到顶部 */
.to-top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;background:var(--brand);color:#fff;border:0;cursor:pointer;
  box-shadow:0 12px 30px -14px rgba(31,111,120,.95);z-index:90;
  opacity:0;visibility:hidden;transform:translateY(14px) scale(.86);
  transition:opacity .4s var(--ease),transform .4s var(--ease),visibility .4s,background .25s;}
.to-top.show{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--brand-dk);transform:translateY(-4px) scale(1.04);}
html.js .filters .chip:nth-child(2){animation-delay:.05s;}
html.js .filters .chip:nth-child(3){animation-delay:.1s;}
html.js .filters .chip:nth-child(4){animation-delay:.15s;}
html.js .filters .chip:nth-child(5){animation-delay:.2s;}
html.js .filters .chip:nth-child(6){animation-delay:.25s;}
html.js .filters .chip:nth-child(n+7){animation-delay:.3s;}
.to-top svg{width:17px;height:17px;display:block;}
@media(max-width:620px){.to-top{right:14px;bottom:18px;width:42px;height:42px;}}

/* 灯箱：左右切换与计数 */
.lightbox .lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;
  border-radius:50%;background:rgba(255,255,255,.12);border:0;color:#fff;cursor:pointer;
  display:grid;place-items:center;transition:background .22s var(--ease),transform .22s var(--ease);}
.lightbox .lb-nav:hover{background:rgba(255,255,255,.26);}
.lightbox .lb-prev{left:22px;}
.lightbox .lb-next{right:22px;}
.lightbox .lb-close{position:absolute;top:20px;right:22px;width:40px;height:40px;border-radius:50%;
  background:rgba(255,255,255,.12);border:0;color:#fff;font-size:18px;cursor:pointer;}
.lightbox .lb-count{position:absolute;bottom:24px;left:0;right:0;text-align:center;
  color:#BEDCDE;font-size:13px;letter-spacing:.14em;}
.lightbox img{transition:none;}
.lightbox img.swap{animation:lbSwap .32s var(--ease);}
@keyframes lbSwap{from{opacity:0;transform:scale(.97);}to{opacity:1;transform:none;}}
@media(max-width:620px){.lightbox .lb-nav{width:40px;height:40px;}.lightbox .lb-prev{left:8px;}.lightbox .lb-next{right:8px;}}

/* 筛选与卡片滚入的微位移 */
.chip:active{transform:scale(.97);}
.more:active{transform:translateX(2px);}

/* ================= 响应式 ================= */
@media(max-width:1000px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .case-item{grid-template-columns:300px 1fr;}
}
@media(max-width:860px){
  .wrap{padding:0 20px;}
  .pad{padding-top:52px;padding-bottom:52px;}
  .hero{padding:76px 0 84px;}
  .hero-lead{font-size:15.5px;line-height:1.9;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 auto;text-align:center;}
  .page-head{padding:44px 0 36px;}
  .story-band,.cta-band{padding:56px 0;}
  .promise-grid{grid-template-columns:1fr;gap:16px;}
  .sec-head{margin-bottom:22px;}
  .more{font-size:14px;}
  .table-hint{display:none;}
  .table-wrap{margin-left:0;margin-right:0;padding:0;}
  .cta-inline{padding:28px 24px;margin-top:40px;}
  .cta-inline .btn{width:100%;text-align:center;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px;}
}
/* 只有在表格还是表格的中间宽度才提示横滑 */
@media(min-width:701px) and (max-width:860px){
  .table-hint{display:block;}
  .price-table{min-width:620px;font-size:14px;}
  .price-table th,.price-table td{padding:12px 13px;}
  .table-wrap{margin-left:-20px;margin-right:-20px;padding:0 20px 6px;}
}
/* 窄屏价格表改成卡片，不再横向滑动 */
@media(max-width:700px){
  .price-table thead{display:none;}
  .price-table,.price-table tbody,.price-table tr,.price-table td{display:block;width:100%;}
  .price-table{background:transparent;font-size:15px;}
  .price-table tr{background:#fff;border:1px solid var(--line);border-radius:var(--r);
    margin-bottom:14px;padding:8px 0 10px;box-shadow:var(--sh);}
  .price-table tbody tr:nth-child(even) td,
  .price-table tbody tr:hover td{background:transparent;}
  .price-table td{border:0;padding:7px 16px;display:flex;align-items:baseline;
    justify-content:space-between;gap:18px;text-align:right;}
  .price-table td::before{content:attr(data-label);color:var(--muted);font-size:13px;
    flex:none;text-align:left;}
  .price-table td:first-child{font-size:17px;font-weight:600;padding:12px 16px 10px;
    margin-bottom:4px;border-bottom:1px solid var(--mist);}
  .price-table td:first-child::before{display:none;}
  .price-table td:last-child{display:block;text-align:left;padding-top:10px;border:0;}
  .price-table td:last-child::before{display:block;margin-bottom:3px;}
  .price-table .price{font-size:16px;}
  .price-table .small{text-align:left;}
}
@media(max-width:620px){
  body{font-size:15.5px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .card .thumb,.card .cover{aspect-ratio:3/4;}
  .card-photo-lg .cover{aspect-ratio:4/3;}
  .gallery{grid-template-columns:1fr;}
  .field-row{grid-template-columns:1fr;}
  .profile-inner{flex-direction:column;gap:20px;}
  .profile-avatar{width:112px;height:112px;}
  .fact-list{gap:24px;}
  .case-item{grid-template-columns:1fr;}
  .case-body{padding:0 22px 24px;}
  .case-item{display:block;}
  .case-thumb{aspect-ratio:16/10;}
  .case-body{padding:20px 22px 24px;}
  .story p,.serif-body{font-size:16px;line-height:2.05;}
  .mission{padding:28px 24px;}
  .mission p{font-size:17.5px;}
  .slogan-box{font-size:17.5px;padding:24px 20px;}
  .foot-grid{grid-template-columns:1fr;}
  .notice{padding:24px 22px;}
  .wrap.narrow{padding-left:20px;padding-right:20px;}
}
@media(max-width:420px){
  .hero h1{font-size:26px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
}

/* 尊重系统的减弱动效设置 */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important;}
  html.js .reveal{opacity:1;transform:none;filter:none;}
  .to-top{transition:none;}
}
/* 移动端减少毛玻璃与阴影开销 */
@media(max-width:900px){
  .site-head{backdrop-filter:none;background:rgba(255,255,255,.97);}
}