:root{--green:#17684f;--green2:#259b78;--mint:#e7f7ee;--gold:#f6bd60;--sky:#dff3ff;--ink:#20312b;--paper:#fffdf7;--pink:#ffcad4;--line:#e3ecdf}*{box-sizing:border-box}body{margin:0;font-family:"Microsoft YaHei",system-ui,-apple-system,Segoe UI,sans-serif;color:var(--ink);background:radial-gradient(circle at 8% 0,#fff4d4 0 14%,transparent 30%),radial-gradient(circle at 90% 12%,#dff3ff 0 18%,transparent 34%),linear-gradient(135deg,#f8fff9,#edf8ff 45%,#fff7fb);min-height:100vh}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.campus-bg{position:fixed;inset:0;pointer-events:none;z-index:-1;overflow:hidden}.campus-bg span{position:absolute;font-weight:1000;color:rgba(23,104,79,.055);font-size:clamp(50px,12vw,150px);transform:rotate(-12deg)}.campus-bg span:nth-child(1){left:3%;top:18%}.campus-bg span:nth-child(2){right:2%;top:48%}.campus-bg span:nth-child(3){left:28%;bottom:4%}.site-header{position:sticky;top:0;z-index:5;display:flex;justify-content:space-between;align-items:center;padding:12px clamp(14px,4vw,54px);backdrop-filter:blur(18px);background:rgba(255,253,247,.88);border-bottom:1px solid rgba(31,122,92,.14);box-shadow:0 10px 28px rgba(35,70,60,.06)}.brand{display:flex;gap:12px;align-items:center}.brand-mark{font-size:30px;background:var(--mint);border-radius:18px;padding:8px}.brand small{display:block;color:#66857a}nav{display:flex;gap:12px;align-items:center;flex-wrap:wrap}nav a{font-weight:800;color:#315247}.button,button{border:0;border-radius:999px;background:linear-gradient(135deg,var(--green),var(--green2));color:white;padding:10px 17px;font-weight:900;box-shadow:0 10px 24px rgba(31,122,92,.18);cursor:pointer}.button.ghost{background:var(--gold);color:#4a3100}.button.soft{background:#fff;color:var(--green);border:1px solid #cfeadb}main{width:min(1180px,94vw);margin:0 auto;padding:26px 0 54px}.hero,.panel,.form-card{background:rgba(255,255,255,.92);border:1px solid rgba(31,122,92,.12);border-radius:28px;padding:24px;margin:22px 0;box-shadow:0 18px 50px rgba(32,49,43,.08)}.campus-hero{display:grid;grid-template-columns:1.35fr .65fr;gap:24px;align-items:center;padding:38px;background:linear-gradient(135deg,rgba(255,255,255,.95),rgba(231,247,238,.9))}.eyebrow{color:var(--green);font-weight:1000;letter-spacing:.08em}.hero h1{font-size:clamp(34px,6vw,66px);line-height:1;margin:8px 0 14px}.hero p{font-size:18px;color:#526b62}.quick-search{display:flex;gap:10px;max-width:650px}.quick-search input{flex:1}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}.school-card{min-height:300px;border-radius:28px;background:linear-gradient(#96ddff 0 42%,#f6d071 43% 49%,#fffdf7 50%);display:grid;place-items:center;text-align:center;position:relative;box-shadow:inset 0 -20px 70px rgba(31,122,92,.14)}.gate{font-size:34px;font-weight:1000;color:var(--green);border:6px solid 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10px;background:#f3fbf6;border-radius:18px;padding:14px}.stats b{font-size:24px;color:var(--green)}.hot-link{display:block;padding:10px;border-radius:14px;background:#fff9df;margin:7px 0}.hot-link small{float:right}.feed-stream{display:flex;flex-direction:column;gap:16px}.moment-card{display:grid;grid-template-columns:54px 1fr;gap:14px;background:white;border:1px solid #edf1e8;border-radius:24px;padding:18px;box-shadow:0 12px 34px rgba(32,49,43,.08)}.moment-card.compact{display:block}.avatar{width:54px;height:54px;border-radius:50%;background:linear-gradient(135deg,var(--gold),var(--pink));display:grid;place-items:center;color:white;font-weight:1000;font-size:22px;overflow:hidden}.avatar.small{width:38px;height:38px;font-size:16px;display:inline-grid}.avatar.big{width:96px;height:96px;font-size:40px;border:5px solid white}.avatar img{width:100%;height:100%;object-fit:cover}.moment-meta{display:flex;gap:9px;align-items:center;flex-wrap:wrap;color:#789188}.moment-meta b{color:#223a33}.tag,.moment-meta em{background:var(--mint);color:var(--green);border-radius:999px;padding:4px 9px;font-style:normal;font-weight:800}.moment-card h3{font-size:22px;margin:9px 0}.moment-text{white-space:pre-wrap;line-height:1.7;color:#455f56}.image-grid{display:grid;gap:6px;margin-top:10px}.image-grid.count-1{grid-template-columns:minmax(180px,420px)}.image-grid.count-2{grid-template-columns:repeat(2,1fr)}.image-grid,.image-grid.count-3,.image-grid.count-4,.image-grid.count-5,.image-grid.count-6,.image-grid.count-7,.image-grid.count-8,.image-grid.count-9{grid-template-columns:repeat(3,1fr)}.image-grid img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:12px}.moment-actions{display:flex;gap:18px;border-top:1px solid #edf1e8;margin-top:14px;padding-top:12px;color:#6f867d;font-weight:800}.notice-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}.notice{background:#fff9df;border:1px dashed 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img{width:100%;max-height:520px;object-fit:cover;border-radius:18px}.long-body{white-space:pre-wrap;line-height:1.9;font-size:18px;background:#fffdf7;border-radius:20px;padding:20px}.detail-actions{display:flex;gap:10px;margin-top:18px}.comment{border-top:1px solid #e9eee8;padding:14px 0}.comment span{float:right;color:#91a39b}.comment p{white-space:pre-wrap}.profile-banner{height:150px;border-radius:22px;background:linear-gradient(135deg,var(--banner),#79d2ad);display:flex;align-items:end;padding:18px;color:white;font-size:28px;font-weight:1000}.profile-info{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;margin-top:-46px;padding:0 14px}.profile-stats{display:grid;grid-template-columns:repeat(4,auto 1fr);gap:8px;margin-top:18px;background:#f3fbf6;border-radius:18px;padding:14px}.profile-stats b{font-size:24px;color:var(--green)}.split,.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.user-row{display:block;padding:14px;border-radius:16px;background:#f4fbf7;margin:8px 0;font-weight:900}.bubbles{display:flex;flex-direction:column;gap:10px;margin:20px 0}.bubble{max-width:72%;padding:12px 14px;border-radius:20px;background:#f0f7f4}.bubble.me{align-self:flex-end;background:#dcf4ff}.sendbox{display:flex;gap:10px;align-items:end}.sendbox textarea{flex:1}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}td,th{border-bottom:1px solid #e8eee8;padding:10px;text-align:left;vertical-align:top}.ops form{display:inline-flex;gap:5px;margin:2px}.ops input{width:110px;padding:7px;border-radius:10px}.ops button,.post-admin button{padding:7px 10px;box-shadow:none}.post-admin{display:flex;justify-content:space-between;gap:10px;padding:10px;border-bottom:1px solid #edf1e8}.admin-note{display:block;color:#b04765!important;font-weight:900}.muted,small{color:#789188}.empty{background:white;border-radius:24px;padding:36px;text-align:center;color:#789188}footer{text-align:center;color:#789188;padding:36px}@keyframes bounce{50%{transform:translateY(-10px)}}@media(max-width:850px){.site-header,.campus-hero,.layout-3,.split,.admin-grid,.profile-info,.form-row{grid-template-columns:1fr}.site-header{align-items:flex-start;gap:12px;flex-direction:column}.sidebar-card{position:static}.hero{padding:24px}.moment-card{grid-template-columns:1fr}.image-grid,.image-grid.count-1,.image-grid.count-2{grid-template-columns:repeat(2,1fr)}.profile-stats{grid-template-columns:repeat(2,auto 1fr)}.sendbox{display:block}}

/* 社交化升级：Discuz / 朋友圈 / 酷安 / 微博 */
nav sup{display:inline-grid;place-items:center;min-width:18px;height:18px;margin-left:3px;padding:0 5px;border-radius:999px;background:#ff5d7a;color:#fff;font-size:12px;line-height:1}.discuz-board{border-top:5px solid var(--green)}.discuz-list .section-card{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;align-items:center}.discuz-list .section-card span{grid-row:1/4}.discuz-list .section-card em{font-style:normal;color:#9aac9f;font-size:12px}.feed-tabs,.profile-tabs{display:flex;gap:10px;flex-wrap:wrap;background:rgba(255,255,255,.8);border:1px solid #e7efe8;border-radius:18px;padding:10px}.feed-tabs a,.profile-tabs a{padding:8px 13px;border-radius:999px;background:#f4fbf7;font-weight:900;color:#416459}.feed-tabs a.active,.profile-tabs a.active{background:linear-gradient(135deg,var(--green),var(--green2));color:white}.moment-card.pinned{border-color:#f0b942;box-shadow:0 14px 38px rgba(240,185,66,.18)}.moment-card.featured{background:linear-gradient(180deg,#fff,#fffaf1)}.tag.gold{background:#fff2bf;color:#7a5400}.tag.pink{background:#ffe7ee;color:#a63355}.place{background:#edf7ff;color:#34739a;border-radius:999px;padding:4px 9px;font-weight:800}.user-chip{display:grid;grid-template-columns:auto 1fr;gap:0 10px;align-items:center;margin:9px 0;padding:9px;border-radius:16px;background:#f5fbff}.user-chip .avatar{grid-row:1/3}.user-chip small{display:block}.upload-preview{display:grid;grid-template-columns:repeat(auto-fill,minmax(78px,1fr));gap:8px;margin:10px 0}.upload-preview img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:14px;border:2px solid #fff;box-shadow:0 8px 18px rgba(32,49,43,.12)}.notice-item{border:1px solid #e7efe8;border-radius:18px;padding:14px;margin:10px 0;background:#fff}.notice-item.unread{border-color:#9bdcbf;background:#f1fff7;box-shadow:inset 5px 0 0 var(--green2)}.detail-head .tag{display:inline-block;margin-right:6px}.detail-gallery.count-1{grid-template-columns:minmax(240px,720px)}.detail-gallery.count-2{grid-template-columns:repeat(2,1fr)}.profile-stats{grid-template-columns:repeat(5,auto 1fr)}.search{display:flex;gap:10px}.search input{flex:1}.ops .button{padding:7px 10px;box-shadow:none}@media(max-width:850px){.profile-stats{grid-template-columns:repeat(2,auto 1fr)}.discuz-list .section-card{grid-template-columns:1fr}.discuz-list .section-card span{grid-row:auto}.search{display:block}.search button{margin-top:8px}}

/* 可靠性升级：分页、编辑删除、验证码 */
.pagination{display:flex;justify-content:center;align-items:center;gap:16px;margin:10px 0 24px}.pagination span{font-weight:900;color:#607a6e}.danger{background:linear-gradient(135deg,#b33d5a,#e3637f)!important;color:#fff;border:0;border-radius:999px;padding:10px 16px;font-weight:900;cursor:pointer}.link-danger{border:0;background:none;color:#b33d5a;font-weight:900;cursor:pointer;padding:0}.current-images{background:#f7fbf8;border-radius:18px;padding:12px;margin:12px 0}.resend-form{margin-top:12px}.comment form{margin-top:7px}

/* 账号资料升级：改名、防重名、班级、随机头像 */
.class-badge{display:inline-block;background:#edf7ff;color:#34739a;border-radius:999px;padding:3px 8px;font-size:12px;font-weight:900;margin-left:4px}.profile-edit-head{display:flex;gap:14px;align-items:center;background:#f4fbf7;border-radius:18px;padding:14px}.form-card input[type=file]{background:#fbfffd}.resend-form button:disabled,button:disabled{opacity:.62;cursor:not-allowed;box-shadow:none}