/* ============ 无同 前端样式 ============ */
:root{
  --radius:14px; --maxw:1680px;
}
html[data-theme="dark"]{
  --bg:#0c0d0f; --bg2:#121417; --surface:#16181d; --surface2:#1d2026;
  --text:#f3f4f6; --muted:#9aa1aa; --line:rgba(255,255,255,.08); --shadow:0 10px 40px rgba(0,0,0,.45);
}
html[data-theme="light"]{
  --bg:#ffffff; --bg2:#f6f7f9; --surface:#ffffff; --surface2:#f1f3f6;
  --text:#16181d; --muted:#6b7280; --line:rgba(0,0,0,.08); --shadow:0 10px 40px rgba(20,30,60,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);transition:background .35s,color .35s;line-height:1.6;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px}
.wrap.pad{padding-top:28px;padding-bottom:60px}

/* Header */
header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
  background:color-mix(in srgb,var(--bg) 80%,transparent);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:18px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:1px}
.logo .mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--accent),#ffb199);
  display:grid;place-items:center;color:#fff;font-weight:900;font-size:15px}
.menu{display:flex;gap:2px;flex:1;overflow-x:auto}
.menu a{padding:8px 13px;border-radius:10px;color:var(--muted);font-weight:600;font-size:14.5px;position:relative;transition:.2s;white-space:nowrap}
.menu a:hover{color:var(--text);background:var(--surface2)}
.menu a.active{color:var(--accent)}
.menu a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:-2px;height:2px;background:var(--accent);border-radius:2px}
.tools{display:flex;align-items:center;gap:10px}
.search{display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:11px;padding:8px 13px;color:var(--muted);font-size:14px}
.search input{background:none;border:none;color:var(--text);outline:none;font-size:14px;width:170px}
.icon-btn{width:40px;height:40px;border-radius:11px;border:1px solid var(--line);background:var(--surface);color:var(--text);display:grid;place-items:center;cursor:pointer;transition:.2s;font-size:15px}
.icon-btn:hover{background:var(--surface2);transform:translateY(-1px)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:11px;font-weight:700;border:1px solid var(--line);background:var(--surface);color:var(--text);cursor:pointer;transition:.2s;font-size:14px}
.btn:hover{background:var(--surface2)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{filter:brightness(1.07)}
.btn.sm{padding:6px 12px;font-size:13px}
.mini-ava{width:22px;height:22px;border-radius:50%;object-fit:cover}

/* 用户下拉菜单（登录后用户名下方） */
.user-drop{position:relative}
.user-trigger{cursor:pointer}
.user-trigger .fa-angle-down{font-size:11px;opacity:.7;margin-left:2px}
.user-menu{position:absolute;right:0;top:calc(100% + 10px);min-width:170px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:6px;display:none;flex-direction:column;box-shadow:var(--shadow);z-index:60}
.user-drop:hover .user-menu,.user-drop:focus-within .user-menu{display:flex}
.user-menu a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;color:var(--text);font-size:14px;font-weight:600;transition:.15s}
.user-menu a:hover{background:var(--accent-soft);color:var(--accent)}
.user-menu a i{width:16px;text-align:center;color:var(--muted);transition:.15s}
.user-menu a:hover i{color:var(--accent)}

/* flash */
.flash{display:flex;gap:8px;align-items:center;padding:12px 16px;border-radius:11px;margin-bottom:20px;font-weight:600;font-size:14px}
.flash-ok{background:rgba(54,211,153,.14);color:#36d399;border:1px solid rgba(54,211,153,.4)}
.flash-error{background:rgba(248,114,114,.14);color:#f87272;border:1px solid rgba(248,114,114,.4)}

/* 轮播 */
.carousel{position:relative;height:62vh;min-height:440px;overflow:hidden;border-radius:0 0 22px 22px}
.slides{position:absolute;inset:0}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .8s;background-size:cover;background-position:center}
.slide::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.15),rgba(0,0,0,.72))}
.slide.on{opacity:1}
.slide .inner{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:70px}
.slide h1{font-size:clamp(30px,4.4vw,60px);font-weight:900;letter-spacing:-1px;max-width:16ch}
.slide p{margin-top:12px;font-size:18px;color:#eceef0;max-width:46ch}
.slide .cta{margin-top:22px;display:flex;gap:14px;flex-wrap:wrap}
.car-dots{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);z-index:3;display:flex;gap:10px}
.car-dots span{width:30px;height:4px;border-radius:3px;background:rgba(255,255,255,.4);cursor:pointer;transition:.3s}
.car-dots span.on{background:#fff;width:44px}
.car-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:46px;height:46px;border-radius:50%;background:rgba(0,0,0,.35);color:#fff;border:none;cursor:pointer;font-size:18px;display:grid;place-items:center;transition:.2s}
.car-arrow:hover{background:rgba(0,0,0,.6)}
.car-arrow.prev{left:24px}.car-arrow.next{right:24px}

/* section */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;margin:42px 0 22px;gap:16px;flex-wrap:wrap}
.sec-head h2{font-size:28px;font-weight:850}
.sec-head .sub{color:var(--muted);font-size:15px;margin-top:4px}
.chip{padding:7px 15px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--muted);font-weight:600;font-size:13.5px;cursor:pointer;transition:.2s}
.chip:hover,.chip.on{color:var(--text);border-color:var(--accent);background:var(--accent-soft)}

/* 内容分类 */
.cat-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:14px}
@media(max-width:1200px){.cat-grid{grid-template-columns:repeat(5,1fr)}}
@media(max-width:760px){.cat-grid{grid-template-columns:repeat(3,1fr)}}
.cat{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 12px;text-align:center;cursor:pointer;transition:.25s}
.cat:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:var(--shadow);background:var(--surface2)}
.cat .ic{width:48px;height:48px;border-radius:13px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-size:20px;margin:0 auto 10px}
.cat .nm{font-weight:700;font-size:15px}
.cat .ct{color:var(--muted);font-size:12.5px;margin-top:3px}

/* masonry */
.masonry{columns:4;column-gap:18px}
@media(max-width:1280px){.masonry{columns:3}}
@media(max-width:820px){.masonry{columns:2}}
.card{break-inside:avoid;margin-bottom:18px;border-radius:var(--radius);overflow:hidden;position:relative;background:var(--surface);box-shadow:var(--shadow);cursor:pointer;border:1px solid var(--line);opacity:0;transform:translateY(24px);transition:opacity .6s,transform .6s,box-shadow .3s}
.card.in{opacity:1;transform:none}
.card:hover{box-shadow:0 18px 50px rgba(0,0,0,.5);transform:translateY(-3px)}
.card img{width:100%;transition:transform .5s}
.card:hover img{transform:scale(1.06)}
.card .ov{position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(0,0,0,.78));opacity:0;transition:.3s;display:flex;flex-direction:column;justify-content:flex-end;padding:14px}
.card:hover .ov{opacity:1}
.card .ov .t{color:#fff;font-weight:700}
.card .ov .m{color:#cfd2d6;font-size:13px;display:flex;gap:14px;margin-top:6px}
.card .badge{position:absolute;top:12px;left:12px;background:rgba(0,0,0,.55);color:#fff;font-size:12px;padding:5px 10px;border-radius:8px;backdrop-filter:blur(6px)}
.card .ava{position:absolute;top:12px;right:12px;width:34px;height:34px;border-radius:50%;border:2px solid #fff;object-fit:cover}

/* grid */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:980px){.grid3,.grid4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid3,.grid4{grid-template-columns:1fr}}
.tile{border-radius:var(--radius);overflow:hidden;background:var(--surface);border:1px solid var(--line);transition:.3s;cursor:pointer}
.tile:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.tile .ph{height:170px;background-size:cover;background-position:center}
.tile .body{padding:16px}
.tile .body h3{font-size:17px;font-weight:750}
.tile .body p{color:var(--muted);font-size:13.5px;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tag{display:inline-block;font-size:12px;color:var(--accent);background:var(--accent-soft);padding:3px 9px;border-radius:7px;font-weight:700;margin-bottom:8px}

/* 摄影师卡 */
.pho{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--surface);border:1px solid var(--line)}
.pho .cov{height:150px;background-size:cover;background-position:center}
.pho .av{position:absolute;top:118px;left:50%;transform:translateX(-50%);width:64px;height:64px;border-radius:50%;border:3px solid var(--surface);object-fit:cover}
.pho .body{text-align:center;padding:42px 16px 18px}
.pho .body h3{font-size:17px;font-weight:750}
.pho .body .tt{color:var(--muted);font-size:13px;margin-top:3px}
.pho .body .btn{margin-top:12px;width:100%;justify-content:center}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:8px 0 30px}
@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.stat .n{font-size:34px;font-weight:900;color:var(--accent)}
.stat .l{color:var(--muted);font-size:14px;margin-top:4px}

/* promo */
.promo{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:760px){.promo{grid-template-columns:1fr}}
.pc{border-radius:18px;padding:28px;color:#fff;position:relative;overflow:hidden;min-height:170px;display:flex;flex-direction:column;justify-content:flex-end;background-size:cover;background-position:center}
.pc h3{font-size:22px;font-weight:800;position:relative;z-index:2}
.pc p{opacity:.92;font-size:14px;margin:6px 0 14px;position:relative;z-index:2;max-width:36ch}
.pc .btn{position:relative;z-index:2;align-self:flex-start}

/* 案例 */
.case-card{border-radius:var(--radius);overflow:hidden;background:var(--surface);border:1px solid var(--line);transition:.3s;cursor:pointer;opacity:0;transform:translateY(20px)}
.case-card.in{opacity:1;transform:none}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.case-card .ph{height:220px;background-size:cover;background-position:center;position:relative}
.case-card .ph .cat{position:absolute;top:12px;left:12px;background:rgba(0,0,0,.55);color:#fff;font-size:12px;padding:5px 10px;border-radius:8px;backdrop-filter:blur(6px)}
.case-card .body{padding:18px}
.case-card .body h3{font-size:18px;font-weight:800}
.case-card .body .client{color:var(--accent);font-size:13px;font-weight:700;margin-top:5px}
.case-card .body p{color:var(--muted);font-size:13.5px;margin-top:7px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* tabs */
.tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-bottom:24px;flex-wrap:wrap}
.tabs a{padding:10px 16px;font-weight:700;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;transition:.2s}
.tabs a.on,.tabs a:hover{color:var(--text);border-color:var(--accent)}

/* 表单 */
.formcard{max-width:560px;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:30px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:700;margin-bottom:7px}
.field input,.field textarea,.field select{width:100%;padding:12px 14px;border-radius:11px;border:1px solid var(--line);background:var(--bg2);color:var(--text);font-size:14px;font-family:inherit}
.field input:focus,.field textarea:focus{border-color:var(--accent);outline:none}
.row2{display:grid;grid-template-columns:1fr auto;gap:10px}
.auth-switch{text-align:center;color:var(--muted);margin-top:18px;font-size:14px}
.auth-switch a{color:var(--accent);font-weight:700}
.code-row{display:flex;gap:10px}
.code-row input{flex:1}

/* 认证页 */
.benefit{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:14px}
.benefit h3{font-size:18px;margin-bottom:6px}
.benefit p{color:var(--muted);font-size:14px}

/* 详情页 */
.detail-hero{height:46vh;min-height:320px;background-size:cover;background-position:center;border-radius:18px;position:relative;overflow:hidden}
.detail-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.1),rgba(0,0,0,.6))}
.detail-hero .inner{position:absolute;z-index:2;bottom:24px;left:28px;right:28px;color:#fff}
.detail-hero h1{font-size:34px;font-weight:900}
.prose{max-width:760px;margin:24px auto;color:var(--muted);font-size:15px;white-space:pre-wrap}
.profile-head{display:flex;gap:20px;align-items:center;margin-bottom:24px}
.profile-head img{width:96px;height:96px;border-radius:50%;object-fit:cover;border:3px solid var(--line)}
.profile-head h1{font-size:26px}
.profile-head .tt{color:var(--muted)}

/* footer */
footer{border-top:1px solid var(--line);background:var(--bg2);padding:46px 0 30px;margin-top:40px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}
.foot-grid h4{font-size:15px;margin-bottom:14px}
.foot-grid a{display:block;color:var(--muted);font-size:13.5px;margin-bottom:9px;transition:.2s}
.foot-grid a:hover{color:var(--text)}
.copy{margin-top:34px;color:var(--muted);font-size:13px;border-top:1px solid var(--line);padding-top:20px}

/* 认证登录页 */
.auth-body{display:grid;place-items:center;min-height:100vh;padding:24px}
.auth-card{width:100%;max-width:440px;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:var(--shadow)}
.auth-logo{justify-content:center;margin-bottom:22px;font-size:22px}
.auth-card h2{font-size:24px;margin-bottom:6px}
.auth-card .sub{color:var(--muted);font-size:14px;margin-bottom:22px}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}