:root{
  --teal:#123d57;--teal-d:#0b2a3d;--teal-l:#e8eef2;
  --ink:#17232d;--sub:#6b7785;--line:#e3ddd1;--bg:#f6f3ec;--card:#fffdf8;
  --orange:#c98a3e;--orange-l:#fbf1e2;--amber:#e0a458;--amber-d:#b97a2e;
  --ok:#1f7a4d;--bad:#c0392b;
  --shadow:0 8px 28px rgba(23,35,45,.09);
  --radius:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;line-height:1.6}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
.hide{display:none!important}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.muted{color:var(--sub);font-size:13px}
.topbar{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;gap:26px;height:64px}
.logo{display:flex;align-items:center;gap:9px;font-weight:900;font-size:20px;letter-spacing:.5px}
.logo-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--teal),#00c9c0);color:#fff;display:grid;place-items:center;font-size:18px;box-shadow:0 6px 14px rgba(0,166,167,.3)}
.logo small{display:block;font-size:9px;letter-spacing:2px;color:var(--sub);font-weight:600;margin-top:-2px}
.mainnav{display:flex;gap:4px;flex:1}
.mainnav a{padding:8px 14px;border-radius:10px;color:#3d4a57;font-weight:600;font-size:14px;position:relative}
.mainnav a:hover{background:#f0f3f6}
.mainnav a.on{color:var(--teal-d);background:var(--teal-l)}
.dot{width:7px;height:7px;background:var(--orange);border-radius:50%;display:inline-block;margin-left:5px;vertical-align:top}
.top-actions{display:flex;gap:8px;align-items:center}
.btn{border:0;border-radius:10px;background:var(--teal);color:#fff;padding:9px 16px;font-weight:700;cursor:pointer;transition:.18s;white-space:nowrap}
.btn:hover{background:var(--teal-d);transform:translateY(-1px)}
.btn.ghost{background:#fff;color:var(--teal-d);border:1px solid #cfe4e4}
.btn.ghost:hover{background:var(--teal-l)}
.btn.small{padding:7px 12px;font-size:13px;border-radius:9px}
.btn.big{padding:13px 22px;font-size:15px;border-radius:12px}
.btn.orange{background:var(--orange)}
.btn.orange:hover{background:#e8622f}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.userchip{display:flex;align-items:center;gap:8px;padding:5px 10px 5px 5px;border:1px solid var(--line);border-radius:999px;cursor:pointer;background:#fff;font-weight:700;font-size:13px}
.userchip img{width:28px;height:28px;border-radius:50%;object-fit:cover;background:#ddd}
.view{display:none;padding:26px 0 60px}
.view.on{display:block}
.hero{display:grid;grid-template-columns:1.25fr .75fr;gap:28px;align-items:stretch;margin:6px 0 26px}
.hero-copy{padding:26px 0 6px}
.eyebrow{display:inline-block;background:#fff;border:1px solid var(--line);padding:5px 12px;border-radius:999px;font-size:12px;color:var(--teal-d);font-weight:700;letter-spacing:.4px}
.hero h1{font-size:44px;line-height:1.18;margin:16px 0 12px;letter-spacing:-1px}
.hero h1 em{font-style:normal;color:var(--teal);position:relative}
.hero h1 em:after{content:"";position:absolute;left:0;right:0;bottom:5px;height:8px;background:rgba(0,166,167,.15);z-index:-1;border-radius:4px}
.hero p{color:var(--sub);font-size:15px;max-width:560px}
.hero-actions{display:flex;gap:12px;margin:22px 0 18px;flex-wrap:wrap}
.hero-stats{display:flex;gap:26px;color:var(--sub);font-size:13px}
.hero-stats b{color:var(--ink);font-size:20px;margin-right:4px}
.hero-card{background:linear-gradient(160deg,#0d3b3c,#0a2a2b);color:#eaf7f6;border-radius:20px;padding:20px;box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:space-between;min-height:260px;position:relative;overflow:hidden}
.hero-card:after{content:"";position:absolute;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(0,201,192,.28),transparent 65%);right:-70px;top:-70px}
.hc-top{font-size:12px;letter-spacing:1px;color:#9fd9d7;display:flex;align-items:center;gap:7px}
.live-dot{width:8px;height:8px;border-radius:50%;background:#2ee6a6;box-shadow:0 0 0 5px rgba(46,230,166,.15);animation:pulse 1.8s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 10px rgba(46,230,166,0)}}
.hc-foot{font-size:11px;color:#8bb7b5;border-top:1px solid rgba(255,255,255,.12);padding-top:10px}
.bid-mini h3{margin:12px 0 4px;font-size:22px;color:#fff}
.bid-mini .tag{display:inline-block;background:rgba(255,255,255,.12);color:#c9f1ef;border-radius:6px;padding:2px 8px;font-size:11px;margin-right:6px}
.bid-mini .price{font-size:26px;font-weight:900;color:#ffd2a8;margin-top:10px}
.bid-mini .price small{font-size:12px;font-weight:400;color:#9fd9d7}
.searchbar{display:flex;gap:10px;background:#fff;padding:10px;border:1px solid var(--line);border-radius:14px;box-shadow:0 4px 14px rgba(21,32,43,.04)}
.searchbar input{flex:1;border:0;outline:0;padding:10px 12px;font-size:15px}
.searchbar select{border:1px solid var(--line);border-radius:9px;padding:0 10px;background:#fff;color:#3d4a57;outline:0}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0 4px}
.chip{background:#fff;border:1px solid var(--line);padding:7px 13px;border-radius:999px;font-size:13px;cursor:pointer;font-weight:600;color:#3d4a57}
.chip:hover,.chip.on{background:var(--teal-l);border-color:#b7e3e3;color:var(--teal-d)}
.section-head{display:flex;align-items:end;justify-content:space-between;margin:26px 0 12px}
.section-head h2{font-size:20px;margin:0}
.feed-layout{display:grid;grid-template-columns:1fr 300px;gap:20px;align-items:start}
.feed{display:flex;flex-direction:column;gap:12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;transition:.18s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-1px);border-color:#d7e3e3}
.post-top{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
.post-title{font-size:17px;font-weight:800;margin:0 0 4px}
.post-title .skill{color:var(--teal-d)}
.post-meta{display:flex;gap:12px;color:var(--sub);font-size:12.5px;flex-wrap:wrap}
.post-price{text-align:right;white-space:nowrap}
.post-price b{font-size:22px;color:var(--orange)}
.post-price small{display:block;color:var(--sub);font-size:11px}
.post-desc{color:#4a5663;font-size:13.5px;margin:10px 0 12px}
.tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.tag{font-size:11.5px;background:#f1f4f7;color:#5a6673;border-radius:6px;padding:3px 8px}
.tag.teach{background:var(--teal-l);color:var(--teal-d)}
.tag.want{background:var(--orange-l);color:#c44f21}
.post-foot{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #f0f3f6;padding-top:11px;gap:10px}
.who{display:flex;align-items:center;gap:8px;font-size:13px;color:#3d4a57}
.who img{width:30px;height:30px;border-radius:50%;object-fit:cover;background:#dde}
.bidline{font-size:12px;color:var(--sub)}
.bidline b{color:var(--orange)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.rail{display:flex;flex-direction:column;gap:12px;position:sticky;top:84px}
.rail-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px}
.rail-title{font-weight:800;font-size:14px;margin-bottom:10px}
.hot{display:flex;flex-wrap:wrap;gap:7px}
.hot span{background:#f1f5f7;border-radius:7px;padding:4px 9px;font-size:12px;color:#4a5663}
.steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.steps li{display:flex;gap:10px;font-size:12.5px}
.steps b{width:20px;height:20px;border-radius:50%;background:var(--teal-l);color:var(--teal-d);display:grid;place-items:center;font-size:11px;flex:none}
.steps span{color:var(--sub)}
.tip p{font-size:12.5px;color:var(--sub);margin:0}
.msg-layout{display:grid;grid-template-columns:300px 1fr;gap:16px;min-height:520px}
.chatlist{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.chatlist .item{padding:12px 14px;border-bottom:1px solid #f1f4f6;cursor:pointer;display:flex;gap:10px;align-items:center}
.chatlist .item:hover,.chatlist .item.on{background:var(--teal-l)}
.chatlist img{width:38px;height:38px;border-radius:50%;object-fit:cover;background:#dde}
.chatlist b{font-size:13.5px;display:block}
.chatlist small{color:var(--sub);font-size:11.5px;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:190px}
.chatpanel{background:#fff;border:1px solid var(--line);border-radius:14px;display:flex;flex-direction:column;overflow:hidden}
.chat-head{padding:13px 16px;border-bottom:1px solid #f1f4f6;font-weight:800}
.chatbody{flex:1;padding:16px;overflow:auto;max-height:430px;background:#fbfcfd}
.chat-input{display:flex;gap:7px;padding:10px;border-top:1px solid #f1f4f6}
.chat-input input{flex:1;border:1px solid var(--line);border-radius:9px;padding:9px 11px;outline:0}
.bubble{max-width:72%;padding:8px 12px;border-radius:12px;font-size:13.5px;margin:6px 0;background:#eef2f5}
.bubble.me{margin-left:auto;background:var(--teal);color:#fff}
.bubble.sys{margin:8px auto;background:transparent;color:var(--sub);font-size:12px;text-align:center;max-width:100%}
.empty{color:var(--sub);text-align:center;padding:40px 10px;font-size:13px}
.me-head{display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}
.me-head img{width:76px;height:76px;border-radius:50%;object-fit:cover;background:#dde}
.me-head h2{margin:0 0 4px}
.me-head p{margin:0;color:var(--sub);font-size:13px}
.skill-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px}
.skill-card h3{margin:0 0 6px;font-size:15px}
.skill-card .price{color:var(--orange);font-weight:800}
.foot{border-top:1px solid var(--line);color:var(--sub);font-size:11.5px;padding:18px 0;background:#fff}
.modal{position:fixed;inset:0;background:rgba(15,25,35,.45);display:grid;place-items:center;z-index:100;padding:20px}
.modal-card{background:#fff;border-radius:18px;width:min(560px,100%);max-height:90vh;overflow:auto;padding:22px;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal-card h2{margin:0 0 4px;font-size:20px}
.modal-card .sub{color:var(--sub);font-size:13px;margin:0 0 16px}
.form{display:flex;flex-direction:column;gap:12px}
.form label{font-size:12.5px;font-weight:700;color:#3d4a57;display:block;margin-bottom:4px}
.form input,.form select,.form textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px 12px;outline:0;background:#fff}
.form textarea{min-height:90px;resize:vertical}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.hint{font-size:11.5px;color:var(--sub)}
.err{color:var(--bad);font-size:12px}
.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:16px}
.avatar-pick{display:flex;align-items:center;gap:12px}
.avatar-pick img{width:52px;height:52px;border-radius:50%;object-fit:cover;background:#dde}
.priceband{background:var(--teal-l);border:1px solid #cdeaea;border-radius:10px;padding:9px 11px;font-size:12.5px;color:var(--teal-d)}
.bid-item{border:1px solid var(--line);border-radius:12px;padding:12px;margin:8px 0}
.bid-item .top{display:flex;justify-content:space-between;align-items:center}
.bid-item b{font-size:14px}
.bid-item .p{color:var(--orange);font-weight:900}
.toast{position:fixed;left:50%;bottom:34px;transform:translateX(-50%);background:#15202b;color:#fff;padding:11px 18px;border-radius:10px;font-size:13.5px;z-index:200;box-shadow:var(--shadow)}
@media(max-width:900px){
  .hero{grid-template-columns:1fr}
  .feed-layout{grid-template-columns:1fr}
  .rail{position:static;flex-direction:row;overflow:auto}
  .rail-card{min-width:240px}
  .msg-layout{grid-template-columns:1fr}
  .grid2{grid-template-columns:1fr}
  .hero h1{font-size:34px}
  .topbar-in{height:auto;padding:10px 0;flex-wrap:wrap;gap:10px}
  .mainnav{order:3;width:100%;overflow:auto}
}

/* ===== 夜航船 · 社区层 ===== */
body{background:linear-gradient(180deg,#f8f4ea 0%,#f3efe6 100%)}
.topbar{background:rgba(250,247,240,.95);border-bottom-color:#e3ddd1}
.logo-mark{background:linear-gradient(135deg,#123d57,#c98a3e);box-shadow:0 6px 14px rgba(18,61,87,.25)}
.mainnav a.on{color:#0b2a3d;background:#ece7db}
.btn{background:#123d57}
.btn:hover{background:#0b2a3d}
.btn.amber{background:var(--amber);color:#1c2a33}
.btn.amber:hover{background:var(--amber-d);color:#fff}
.btn.ghost-dark{background:transparent;color:#f4ead7;border:1px solid rgba(244,234,215,.45)}
.btn.ghost-dark:hover{background:rgba(244,234,215,.1)}
.comm-hero{display:grid;grid-template-columns:1.35fr .65fr;gap:28px;align-items:center;padding:34px 0 24px;border-bottom:1px solid #e3ddd1;margin-bottom:22px}
.comm-hero h1{font-size:46px;line-height:1.16;margin:14px 0 12px;letter-spacing:-1.2px;color:#12222e}
.comm-hero h1 em{font-style:normal;color:#b97a2e;position:relative}
.comm-hero h1 em:after{content:"";position:absolute;left:0;right:0;bottom:4px;height:9px;background:rgba(224,164,88,.22);z-index:-1;border-radius:4px}
.comm-hero p{color:#5f6b73;font-size:15px;max-width:560px}
.eyebrow.dark{background:#123d57;color:#f4ead7;border-color:#123d57}
.interest-line{font-size:12.5px;color:#6b7785;margin-top:16px}
.interest-line b{color:#123d57}
.comm-hero-side{display:flex;justify-content:flex-end}
.ship-card{width:100%;max-width:330px;background:#123d57;color:#f4ead7;border-radius:18px;padding:22px;box-shadow:0 18px 40px rgba(18,61,87,.22);position:relative;overflow:hidden}
.ship-card:before{content:"⚓";position:absolute;right:16px;top:10px;font-size:48px;opacity:.12}
.ship-top{font-size:11px;letter-spacing:2px;color:#d9b98c;text-transform:uppercase}
.ship-quote{font-family:"Songti SC","Noto Serif SC",Georgia,serif;font-size:19px;line-height:1.7;margin:22px 0 18px}
.ship-meta{font-size:11.5px;color:#a9c1cd;border-top:1px solid rgba(255,255,255,.14);padding-top:12px}
.comm-layout{display:grid;grid-template-columns:1fr 300px;gap:22px;align-items:start;padding-bottom:60px}
.comm-tabs{display:flex;gap:4px;align-items:center;background:#fffdf8;border:1px solid #e3ddd1;border-radius:12px;padding:5px;margin-bottom:12px}
.ct{border:0;background:transparent;padding:8px 14px;border-radius:8px;font-weight:700;font-size:13.5px;color:#5f6b73;cursor:pointer}
.ct:hover{background:#f2ede2}
.ct.on{background:#123d57;color:#f4ead7}
.ct.ghost{margin-left:auto;color:#b97a2e;border:1px solid #e6d3b6}
.small-chips .chip{padding:5px 11px;font-size:12px}
.commfeed{display:flex;flex-direction:column;gap:12px}
.comm-post{background:#fffdf8;border:1px solid #e3ddd1;border-radius:14px;padding:17px 19px;transition:.16s}
.comm-post:hover{box-shadow:0 12px 30px rgba(23,35,45,.08);transform:translateY(-1px)}
.comm-post .cp-top{display:flex;align-items:center;gap:8px;font-size:12px;color:#6b7785;margin-bottom:9px}
.comm-post .cp-top img{width:26px;height:26px;border-radius:50%;object-fit:cover}
.topic{background:#f2ede2;color:#8a6a3f;border-radius:5px;padding:2px 8px;font-size:11px;font-weight:700}
.comm-post h3{margin:0 0 7px;font-size:18px;line-height:1.45;color:#17232d}
.comm-post .excerpt{color:#4f5b63;font-size:13.8px;margin:0 0 12px;white-space:pre-wrap}
.post-actions{display:flex;gap:16px;align-items:center;border-top:1px solid #f0ebe0;padding-top:10px;color:#6b7785;font-size:12.5px}
.post-actions button{border:0;background:transparent;color:#6b7785;cursor:pointer;font-size:12.5px;padding:2px 0}
.post-actions button:hover{color:#b97a2e}
.post-actions .liked{color:#b97a2e;font-weight:700}
.comments{margin-top:10px;border-top:1px dashed #e8e1d3;padding-top:10px}
.comment{font-size:12.5px;color:#4f5b63;margin:6px 0}
.comment b{color:#17232d}
.comment-form{display:flex;gap:7px;margin-top:8px}
.comment-form input{flex:1;border:1px solid #e3ddd1;border-radius:8px;padding:7px 9px;outline:0;background:#fff}
.comment-form button{border:0;background:#123d57;color:#fff;border-radius:8px;padding:0 12px;font-weight:700;cursor:pointer}
.people{display:flex;flex-direction:column;gap:10px}
.person{display:flex;gap:9px;align-items:center;font-size:12.5px}
.person img{width:34px;height:34px;border-radius:50%;object-fit:cover}
.person b{display:block;font-size:13px}
.person small{color:#6b7785;font-size:11.5px;display:block}
@media(max-width:900px){.comm-hero{grid-template-columns:1fr}.comm-hero h1{font-size:34px}.comm-layout{grid-template-columns:1fr}.comm-hero-side{justify-content:flex-start}}