:root{
  --bg:#0a0a0a; --bg2:#121212; --card:#161616; --line:#262626;
  --text:#f2f2f2; --muted:#9a9a9a; --gold:#c9a96e; --gold-d:#b3935c;
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  line-height:1.7;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* 导航 */
nav{position:sticky;top:0;z-index:50;background:rgba(10,10,10,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:18px 24px;display:flex;align-items:center;justify-content:space-between}
.brand{font-size:20px;font-weight:700;letter-spacing:3px;display:inline-flex;align-items:center;gap:9px}
.brand-logo{width:26px;height:26px;border-radius:6px;object-fit:cover;flex:none;display:block}
.nav-links{display:flex;gap:30px}
.lang-switch{display:inline-block;margin-left:20px;padding:7px 13px;border:1px solid rgba(201,169,110,.55);border-radius:3px;font-size:12px;letter-spacing:.08em;color:var(--gold);text-decoration:none;transition:all .2s;line-height:1}
.lang-switch:hover{background:var(--gold);color:#0a0a0a}
@media(max-width:860px){.nav-links .lang-switch{margin:16px 20px;align-self:flex-start}}
.nav-link{color:var(--muted);font-size:15px;transition:color .2s;position:relative}
.nav-link:hover,.nav-link.active{color:var(--text)}
.nav-link.active::after{content:"";position:absolute;left:0;bottom:-6px;width:100%;height:2px;background:var(--gold)}

/* Hero */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;justify-content:center;text-align:center;
  background:linear-gradient(120deg,#0a0a0a 0%,#1a1712 50%,#0a0a0a 100%);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;
  background:url("https://images.unsplash.com/photo-1500530855697-b586d89ba3ee?auto=format&fit=crop&w=1920&q=70") center/cover no-repeat;
  opacity:.28}
.hero-inner{position:relative;z-index:2;padding:0 24px}
.hero h1{font-size:clamp(34px,6vw,68px);font-weight:700;letter-spacing:2px;margin-bottom:20px;line-height:1.15}
.hero p{max-width:620px;margin:0 auto 32px;color:var(--muted);font-size:17px}
.btn{display:inline-block;padding:13px 30px;border:1px solid var(--gold);color:var(--gold);border-radius:2px;
  transition:all .2s;font-size:15px}
.btn:hover{background:var(--gold);color:#0a0a0a}
.btn-solid{background:var(--gold);color:#0a0a0a;border-color:var(--gold)}
.btn-solid:hover{background:var(--gold-d)}

/* 通用 section */
.section{padding:90px 0}
.section-head{text-align:center;margin-bottom:50px}
.eyebrow{color:var(--gold);letter-spacing:4px;font-size:13px;text-transform:uppercase}
.section-head h2{font-size:34px;margin-top:10px;font-weight:700}
.section-head p{color:var(--muted);margin-top:12px}

/* 精选网格 */
.featured-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feat{position:relative;border:1px solid var(--line);overflow:hidden;border-radius:3px;aspect-ratio:4/5;background:var(--card)}
.feat img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.feat:hover img{transform:scale(1.06)}
.feat-cap{position:absolute;left:0;right:0;bottom:0;padding:18px;background:linear-gradient(transparent,rgba(0,0,0,.8));
  opacity:0;transform:translateY(8px);transition:.3s}
.feat:hover .feat-cap{opacity:1;transform:none}
.feat-cap h3{font-size:17px}
.feat-cap span{color:var(--gold);font-size:13px}

/* 统计 */
.stats{display:flex;justify-content:center;gap:60px;flex-wrap:wrap;margin-top:40px}
.stat{text-align:center}
.stat b{display:block;font-size:40px;color:var(--gold);font-weight:700}
.stat span{color:var(--muted);font-size:14px}

/* 关于条 */
.about-strip{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.about-grid img{border-radius:4px;border:1px solid var(--line)}
.about-grid p{color:var(--muted);margin:16px 0}

/* 作品集 */
.filters{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:36px}
.filter{padding:8px 20px;border:1px solid var(--line);border-radius:30px;color:var(--muted);font-size:14px;cursor:pointer;transition:.2s}
.filter:hover,.filter.active{color:var(--text);border-color:var(--gold)}
.gallery-masonry{columns:3;column-gap:16px}
.g-item{break-inside:avoid;margin-bottom:16px;border:1px solid var(--line);border-radius:3px;overflow:hidden;cursor:pointer;position:relative}
.g-item img{width:100%;transition:transform .5s}
.g-item:hover img{transform:scale(1.05)}
.g-item .tag{position:absolute;top:10px;left:10px;background:rgba(0,0,0,.6);color:var(--gold);font-size:12px;padding:3px 10px;border-radius:20px}

/* 关于页 */
.about-page{max-width:820px;margin:0 auto}
.about-page h1{font-size:38px;margin-bottom:8px}
.about-page .lead{color:var(--gold);margin-bottom:30px}
.about-page p{color:var(--muted);margin-bottom:18px;white-space:pre-line}
.gear{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:30px}
.gear-item{border:1px solid var(--line);padding:18px;border-radius:3px;background:var(--card)}
.gear-item b{color:var(--gold)}
.contact-box{margin-top:36px;border:1px solid var(--line);padding:24px;border-radius:3px;background:var(--card)}

/* 灯箱 */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.92);display:none;align-items:center;justify-content:center;z-index:100;flex-direction:column;padding:40px}
.lightbox.open{display:flex}
.lightbox img{max-width:90%;max-height:80vh;border:1px solid var(--line)}
.lightbox .cap{color:var(--muted);margin-top:16px;text-align:center}
.lightbox .close{position:absolute;top:24px;right:30px;font-size:34px;color:#fff;cursor:pointer;line-height:1}

/* 页脚 */
footer{border-top:1px solid var(--line);padding:40px 0;margin-top:60px}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;text-align:center}
.footer-brand{font-size:20px;font-weight:700;letter-spacing:3px;margin-bottom:14px}
.footer-social{display:flex;gap:22px;justify-content:center;margin-bottom:14px}
.footer-social a{color:var(--muted);font-size:14px;transition:color .2s}
.footer-social a:hover{color:var(--gold)}
.footer-text{color:var(--muted);font-size:13px}

/* ===== 后台 ===== */
.admin-body{background:var(--bg2)}
.ad-nav{background:#0c0c0c;border-bottom:1px solid var(--line);padding:14px 0}
.ad-nav .wrap{display:flex;align-items:center;justify-content:space-between}
.ad-nav .brand{font-size:18px}
.ad-menu{display:flex;gap:8px;flex-wrap:wrap}
.ad-menu a{padding:7px 14px;border:1px solid var(--line);border-radius:3px;font-size:14px;color:var(--muted)}
.ad-menu a:hover,.ad-menu a.active{color:var(--text);border-color:var(--gold)}
.ad-container{max-width:980px;margin:34px auto;padding:0 24px}
.ad-card{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:26px}
.ad-title{font-size:24px;margin-bottom:18px}
.field{margin-bottom:18px}
.field label{display:block;color:var(--muted);font-size:14px;margin-bottom:7px}
.field input[type=text],.field input[type=password],.field input[type=date],.field select,.field textarea{
  width:100%;background:#0e0e0e;border:1px solid var(--line);color:var(--text);padding:11px 13px;border-radius:3px;font-size:15px;font-family:inherit}
.field textarea{min-height:120px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--gold)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.checkbox{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:14px}
.checkbox input{width:17px;height:17px;accent-color:var(--gold)}
.ad-table{width:100%;border-collapse:collapse}
.ad-table th,.ad-table td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--line);font-size:14px}
.ad-table th{color:var(--muted);font-weight:500}
.ad-table img{width:80px;height:56px;object-fit:cover;border-radius:3px}
.ad-actions a{margin-right:10px;color:var(--gold);font-size:14px}
.ad-actions a.del{color:#e06c5a}
.msg{padding:12px 16px;border-radius:3px;margin-bottom:18px;font-size:14px}
.msg.ok{background:rgba(80,160,90,.15);border:1px solid #3c7a45;color:#a9e0b3}
.msg.err{background:rgba(200,80,70,.15);border:1px solid #a0453a;color:#f0a99e}
.login-box{max-width:380px;margin:90px auto}
.pill{display:inline-block;padding:3px 10px;border:1px solid var(--line);border-radius:20px;font-size:12px;color:var(--muted)}
.muted{color:var(--muted)}
.small{font-size:13px}

@media(max-width:860px){
  .featured-grid{grid-template-columns:1fr}
  .gallery-masonry{columns:2}
  .about-grid{grid-template-columns:1fr}
  .gear{grid-template-columns:1fr}
  .row2{grid-template-columns:1fr}
}
@media(max-width:560px){
  .gallery-masonry{columns:1}
  .nav-links{gap:18px}
  .stats{gap:34px}
}

/* ICP备案号 */
.footer-icp { margin-top: 8px; font-size: 12px; color: #666; }
.footer-icp a { color: #666; text-decoration: none; }
.footer-icp a:hover { color: #c9a96e; }

/* ============ 移动端适配（iOS / Android / 鸿蒙） ============ */
:root{
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-l: env(safe-area-inset-left, 0px);
  --safe-r: env(safe-area-inset-right, 0px);
}

/* 顶部导航：移动端汉堡菜单 */
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;background:none;border:none;cursor:pointer;padding:0}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--text);transition:.25s;margin:0 auto}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:860px){
  .nav-inner{padding:12px 16px;padding-left:calc(16px + var(--safe-l));padding-right:calc(16px + var(--safe-r))}
  .nav-toggle{display:flex}
  .nav-links{position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:rgba(10,10,10,.98);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);max-height:0;overflow:hidden;transition:max-height .3s ease}
  .nav-links.open{max-height:320px}
  .nav-links .nav-link{display:block;padding:16px 20px;border-bottom:1px solid var(--line);font-size:16px}
  .nav-links .nav-link.active::after{display:none}
}

/* 触摸目标 */
.nav-link,.filter,.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center}
.filter{min-height:40px}

@media(max-width:560px){
  .wrap,.footer-inner{padding-left:calc(16px + var(--safe-l));padding-right:calc(16px + var(--safe-r))}
  .section{padding:60px 0}
  .hero{min-height:78vh}
  .stats{gap:24px}
  .stat b{font-size:32px}
  .ad-title{font-size:20px}
  .eyebrow{letter-spacing:2px}
  .section-head h2{font-size:26px}
}

/* 后台：移动端菜单折叠 */
.ad-nav{position:relative}
#adMenuToggle{display:none}
@media(max-width:760px){
  .ad-nav .wrap{padding:10px 14px}
  #adMenuToggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;background:none;border:1px solid var(--line);border-radius:6px;color:var(--text);font-size:20px;cursor:pointer}
  .ad-menu{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;background:#0c0c0c;border-bottom:1px solid var(--line);padding:8px 14px;gap:6px;z-index:60}
  .ad-menu.open{display:flex}
  .ad-menu a{width:100%;text-align:center;padding:12px}
  .ad-container{padding:0 14px;margin:20px auto}
  .ad-card{overflow-x:auto}
  .ad-table{min-width:560px}
}
.ad-card::-webkit-scrollbar{height:6px}
.ad-card::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px}

/* 灯箱（移动端） */
@media(max-width:560px){
  .lightbox .close{font-size:40px;top:calc(16px + var(--safe-t));right:20px}
  .lightbox{padding:calc(20px + var(--safe-t)) 20px calc(20px + var(--safe-b))}
}

/* 安装横幅（PWA 添加到主屏幕提示） */
.install-bar{position:fixed;left:0;right:0;bottom:0;z-index:200;background:#0c0c0c;border-top:1px solid var(--gold);
  padding:calc(12px + var(--safe-b)) 16px 12px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.install-bar span{font-size:14px;color:var(--text)}
.install-bar button{background:var(--gold);color:#0a0a0a;border:none;border-radius:4px;padding:9px 16px;font-size:14px;cursor:pointer}
.install-bar .skip{background:none;color:var(--muted);border:none;font-size:13px}

/* ============ 灯箱评论区 ============ */
.lightbox{flex-direction:row}
.lb-box{display:flex;gap:24px;max-width:1200px;width:100%;max-height:92vh;align-items:stretch}
.lb-media{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:0}
.lb-media img{max-width:100%;max-height:78vh;border:1px solid var(--line)}
.lb-comments{width:340px;flex-shrink:0;background:var(--card);border:1px solid var(--line);border-radius:4px;display:flex;flex-direction:column;overflow:hidden}
.lb-comments-head{padding:14px 16px;border-bottom:1px solid var(--line);font-weight:600;color:var(--gold);font-size:15px}
.lb-comments-list{flex:1;overflow-y:auto;padding:8px 16px;min-height:0}
.lb-comment{padding:12px 0;border-bottom:1px solid var(--line)}
.lb-comment:last-child{border-bottom:none}
.lb-comment-meta{display:flex;align-items:center;gap:8px;font-size:13px;margin-bottom:4px;flex-wrap:wrap}
.lb-comment-meta b{color:var(--text);font-size:14px;font-weight:600}
.lb-comment-loc{color:var(--gold);font-size:12px;border:1px solid rgba(201,169,110,.4);padding:1px 8px;border-radius:10px}
.lb-comment-time{color:var(--muted);font-size:12px;margin-left:auto;white-space:nowrap}
.lb-comment-body{color:var(--muted);font-size:14px;word-break:break-word}
.lb-comment-empty{color:var(--muted);font-size:14px;text-align:center;padding:30px 0}
.lb-comment-form{padding:12px 16px 14px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px;background:rgba(255,255,255,.02)}
.lb-form-field{display:flex;flex-direction:column;gap:5px}
.lb-form-field label{font-size:12px;color:var(--muted);letter-spacing:.5px}
.lb-form-field input,.lb-form-field textarea{width:100%;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06);color:var(--text);padding:10px 12px;border-radius:4px;font-size:14px;font-family:inherit;transition:border-color .2s,background .2s}
.lb-form-field input::placeholder,.lb-form-field textarea::placeholder{color:#5a5a5a}
.lb-form-field textarea{min-height:62px;resize:vertical}
.lb-form-field input:focus,.lb-form-field textarea:focus{outline:none;border-color:rgba(201,169,110,.55);background:rgba(255,255,255,.05)}
.lb-comment-bar{display:flex;align-items:center;justify-content:space-between;gap:10px}
.lb-comment-bar .btn{padding:9px 22px;font-size:14px;min-height:0}
.lb-comment-msg{color:var(--muted);font-size:12px;flex:1}
@media(max-width:860px){
  .lightbox{overflow-y:auto;justify-content:flex-start;padding:calc(20px + var(--safe-t)) 16px calc(20px + var(--safe-b))}
  .lb-box{flex-direction:column;max-height:none;gap:14px}
  .lb-media img{max-height:55vh}
  .lb-comments{width:100%;max-height:45vh}
}

/* ===== 作品排序 ===== */
.sort-bar{display:flex;justify-content:center;align-items:center;gap:12px;margin:-20px 0 30px;font-size:14px}
.sort-label{color:var(--muted);margin-right:4px}
.sort-btn{cursor:pointer;padding:6px 18px;border:1px solid var(--line);border-radius:30px;color:var(--muted);transition:.2s}
.sort-btn:hover,.sort-btn.active{color:var(--text);border-color:var(--gold)}

/* ===== 灯箱点赞 ===== */
.lb-like-bar{display:flex;justify-content:center;margin-top:14px}
.lb-like{display:inline-flex;align-items:center;gap:8px;padding:8px 20px;border:1px solid var(--line);border-radius:30px;background:transparent;color:var(--muted);font-size:14px;cursor:pointer;transition:.2s;user-select:none}
.lb-like:hover{border-color:var(--gold);color:var(--text)}
.lb-like .lb-like-heart{font-size:16px;line-height:1;color:var(--muted)}
.lb-like .lb-like-count{font-weight:600;color:var(--text)}
.lb-like.on{color:#ff4d6d;border-color:#ff4d6d}
.lb-like.on .lb-like-heart{color:#ff4d6d}
.lb-like-msg{width:100%;text-align:center;color:#ff4d6d;font-size:12px;margin-top:8px;min-height:0}

/* ===== Pagination ===== */
.pagination{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:8px;margin:34px 0 10px}
.page-btn{cursor:pointer;min-width:38px;height:38px;padding:0 12px;border:1px solid var(--line);border-radius:30px;background:transparent;color:var(--muted);font-size:14px;line-height:1;display:inline-flex;align-items:center;justify-content:center;transition:.2s;font-family:inherit}
.page-btn:hover:not(:disabled){color:var(--text);border-color:var(--gold)}
.page-btn.active{background:var(--gold);color:#0a0a0a;border-color:var(--gold)}
.page-btn:disabled{opacity:.35;cursor:default}
.page-dots{color:var(--muted);padding:0 2px}
/* ===== Sort direction disabled state ===== */
.sort-btn.disabled{opacity:.35;cursor:not-allowed;pointer-events:none}
/* ===== Footprint Map ===== */
.section-footprint .section-head p{max-width:640px;margin-left:auto;margin-right:auto}
.footprint-wrap{max-width:920px;margin:0 auto;padding:8px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(180deg,#11151c,#0a0c10);box-shadow:0 18px 50px rgba(0,0,0,.45)}
.footprint-wrap svg.china-map{display:block;width:100%;height:auto}
.footprint-wrap svg.china-map .province{fill:#2b3140;stroke:#0a0c10;stroke-width:.8;cursor:default;transition:fill .25s ease,opacity .25s ease}
.footprint-wrap svg.china-map .province:hover{fill:#3a4256;opacity:.95}
.footprint-wrap svg.china-map .province.lit{fill:var(--gold);opacity:.92;cursor:pointer}
.footprint-wrap svg.china-map .province.lit:hover{fill:#ffd97a;opacity:1}
/* ---- World Map（足迹世界地图） ---- */
.footprint-wrap svg.world-map{display:block;width:100%;height:auto}
.footprint-wrap svg.world-map .country{fill:#232a38;stroke:#0a0c10;stroke-width:.5;cursor:default;transition:fill .25s ease,opacity .25s ease}
.footprint-wrap svg.world-map .country:hover{fill:#3a4256;opacity:.95}
.footprint-wrap svg.world-map .country.lit{fill:var(--gold);opacity:.92;cursor:pointer}
.footprint-wrap svg.world-map .country.lit:hover{fill:#ffd97a;opacity:1}
.footprint-hint{text-align:center;color:var(--muted);font-size:13px;margin:14px 0 4px}