/* ==========================================================
   超级库 · 设计系统
   ========================================================== */
:root{
  --brand:#2563EB;
  --brand-dark:#1D4ED8;
  --brand-light:#EFF6FF;
  --accent:#F59E0B;
  --accent-light:#FFFBEB;
  --danger:#EF4444;
  --success:#10B981;

  --text-1:#0F172A;
  --text-2:#334155;
  --text-3:#64748B;
  --text-4:#94A3B8;

  --line:#E2E8F0;
  --line-soft:#F1F5F9;
  --bg:#F5F7FA;
  --card:#FFFFFF;

  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:22px;
  --r-full:999px;

  --sh-1:0 1px 2px rgba(15,23,42,.04),0 1px 3px rgba(15,23,42,.06);
  --sh-2:0 2px 8px rgba(15,23,42,.06),0 4px 16px rgba(15,23,42,.05);
  --sh-3:0 8px 28px rgba(15,23,42,.12);
  --sh-brand:0 6px 20px rgba(37,99,235,.28);

  --tab-h:60px;
  --header-h:56px;
  --safe-b:env(safe-area-inset-bottom,0px);
}

*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html,body{height:100%;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:#E8EDF3;
  color:var(--text-1);
  font-size:14px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow:hidden;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;font-size:inherit;}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;border:none;outline:none;background:none;}
img{display:block;max-width:100%;}
ul{list-style:none;}

/* ---------- 手机外壳 ---------- */
.phone-frame{
  height:100vh;height:100dvh;
  display:flex;align-items:center;justify-content:center;
}
.app{
  position:relative;
  width:100%;max-width:480px;
  height:100vh;height:100dvh;
  max-height:900px;
  background:var(--bg);
  display:flex;flex-direction:column;
  overflow:hidden;
}
@media(min-width:520px) and (min-height:760px){
  .app{border-radius:28px;box-shadow:0 24px 70px rgba(15,23,42,.22);border:1px solid rgba(15,23,42,.06);}
}

/* ---------- 顶部栏 ---------- */
.app-header{
  flex:0 0 auto;
  height:var(--header-h);
  padding:0 16px;
  display:flex;align-items:center;gap:10px;
  background:linear-gradient(135deg,#2563EB 0%,#3B82F6 55%,#60A5FA 100%);
  color:#fff;
  position:relative;z-index:20;
  padding-top:env(safe-area-inset-top,0px);
  height:calc(var(--header-h) + env(safe-area-inset-top,0px));
}
.header-inner{flex:1;min-width:0;}
.header-title{font-size:17px;font-weight:700;letter-spacing:.3px;}
.header-sub{font-size:11px;opacity:.82;margin-top:-1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.vip-pill{
  flex:0 0 auto;display:flex;align-items:center;gap:5px;
  padding:6px 12px;border-radius:var(--r-full);
  background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.35);
  color:#fff;font-size:12px;font-weight:600;
  backdrop-filter:blur(6px);
  transition:.18s;
}
.vip-pill:active{transform:scale(.95);}
.vip-pill.is-vip{background:linear-gradient(135deg,#FDE68A,#F59E0B);border-color:rgba(255,255,255,.5);color:#7C2D12;}
.vip-dot{width:6px;height:6px;border-radius:50%;background:#FCD34D;box-shadow:0 0 0 3px rgba(252,211,77,.28);}
.vip-pill.is-vip .vip-dot{background:#7C2D12;box-shadow:none;}

/* ---------- 内容区 ---------- */
.app-body{
  flex:1;min-height:0;
  overflow-y:auto;overflow-x:hidden;
  -webkit-overflow-scrolling:touch;
  position:relative;
  scroll-behavior:smooth;
}
.app-body::-webkit-scrollbar{width:0;}
.view{display:none;padding:14px 14px calc(20px);}
.view.active{display:block;animation:viewIn .26s ease both;}
.view-full{padding:0;}
@keyframes viewIn{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:none;}}

/* ---------- 底部 Tab ---------- */
.tabbar{
  flex:0 0 auto;
  height:calc(var(--tab-h) + var(--safe-b));
  padding-bottom:var(--safe-b);
  display:flex;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  z-index:30;
}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  color:var(--text-4);font-size:10.5px;font-weight:500;
  transition:.16s;position:relative;
}
.tab-icon{width:21px;height:21px;fill:currentColor;transition:.16s;}
.tab-item.active{color:var(--brand);}
.tab-item.active .tab-icon{transform:translateY(-1px) scale(1.06);}
.tab-item:active{opacity:.6;}

/* ==========================================================
   通用组件
   ========================================================== */
.card{
  background:var(--card);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);border:1px solid rgba(226,232,240,.7);
  overflow:hidden;
}
.sec-title{
  display:flex;align-items:center;justify-content:space-between;
  margin:20px 2px 10px;
}
.sec-title h3{font-size:15.5px;font-weight:700;letter-spacing:.2px;display:flex;align-items:center;gap:7px;}
.sec-title h3::before{content:"";width:3px;height:14px;border-radius:2px;background:linear-gradient(180deg,var(--brand),#60A5FA);}
.sec-more{font-size:12px;color:var(--text-3);display:flex;align-items:center;gap:2px;}
.sec-more:active{opacity:.6;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:10px 18px;border-radius:var(--r-full);
  font-size:13.5px;font-weight:600;transition:.16s;
}
.btn:active{transform:scale(.96);}
.btn-primary{background:linear-gradient(135deg,var(--brand),#3B82F6);color:#fff;box-shadow:var(--sh-brand);}
.btn-gold{background:linear-gradient(135deg,#F59E0B,#FBBF24);color:#7C2D12;box-shadow:0 6px 18px rgba(245,158,11,.32);}
.btn-ghost{background:var(--line-soft);color:var(--text-2);}
.btn-outline{border:1.5px solid var(--brand);color:var(--brand);background:#fff;}
.btn-block{width:100%;}
.btn-sm{padding:7px 13px;font-size:12px;}

.tag{
  display:inline-flex;align-items:center;gap:3px;
  padding:2.5px 9px;border-radius:var(--r-full);
  font-size:11px;font-weight:600;line-height:1.5;
}
.tag-blue{background:var(--brand-light);color:var(--brand);}
.tag-orange{background:var(--accent-light);color:#B45309;}
.tag-green{background:#ECFDF5;color:#047857;}
.tag-red{background:#FEF2F2;color:#B91C1C;}
.tag-purple{background:#F5F3FF;color:#6D28D9;}
.tag-gray{background:var(--line-soft);color:var(--text-3);}

.chip{
  flex:0 0 auto;padding:6px 14px;border-radius:var(--r-full);
  background:#fff;border:1px solid var(--line);
  font-size:12.5px;color:var(--text-2);font-weight:500;
  transition:.16s;white-space:nowrap;
}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;box-shadow:0 3px 10px rgba(37,99,235,.26);}
.chip:active{transform:scale(.95);}

.scroll-x{
  display:flex;gap:8px;overflow-x:auto;
  padding:2px 14px 4px;margin:0 -14px;
  scrollbar-width:none;
}
.scroll-x::-webkit-scrollbar{display:none;}

.search-bar{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-full);
  padding:9px 14px;box-shadow:var(--sh-1);
}
.search-bar svg{width:16px;height:16px;fill:var(--text-4);flex:0 0 auto;}
.search-bar input{flex:1;font-size:13.5px;}
.search-bar input::placeholder{color:var(--text-4);}

.empty{
  text-align:center;padding:46px 20px;color:var(--text-4);
}
.empty svg{width:54px;height:54px;fill:#CBD5E1;margin:0 auto 12px;}
.empty p{font-size:13px;}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;top:50%;transform:translate(-50%,-50%) scale(.9);
  background:rgba(15,23,42,.9);color:#fff;
  padding:11px 22px;border-radius:var(--r-md);
  font-size:13.5px;font-weight:500;
  opacity:0;pointer-events:none;transition:.22s;z-index:9999;
  max-width:76%;text-align:center;
  backdrop-filter:blur(8px);
}
.toast.show{opacity:1;transform:translate(-50%,-50%) scale(1);}

/* ---------- 备案信息 ---------- */
.beian-bar{
  padding:0 0 78px;text-align:center;
}
.beian-bar a{
  font-size:11px;color:#94A3B8;text-decoration:none;
  letter-spacing:.2px;
}
.beian-bar a:hover{color:#64748B;text-decoration:underline;}

/* ---------- Bottom Sheet ---------- */
.sheet-mask{
  position:fixed;inset:0;background:rgba(15,23,42,.45);
  opacity:0;pointer-events:none;transition:.24s;z-index:900;
  display:flex;align-items:flex-end;justify-content:center;
}
.sheet-mask.show{opacity:1;pointer-events:auto;}
.sheet{
  width:100%;max-width:480px;max-height:84vh;overflow-y:auto;
  background:#fff;border-radius:var(--r-xl) var(--r-xl) 0 0;
  padding:18px 18px calc(22px + var(--safe-b));
  transform:translateY(100%);transition:.28s cubic-bezier(.32,.72,0,1);
}
.sheet-mask.show .sheet{transform:none;}
.sheet::-webkit-scrollbar{width:0;}
.sheet-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.sheet-head h3{font-size:16.5px;font-weight:700;}
.sheet-close{width:28px;height:28px;border-radius:50%;background:var(--line-soft);display:flex;align-items:center;justify-content:center;color:var(--text-3);font-size:16px;}

.icon-btn{
  display:flex;align-items:center;gap:4px;
  padding:5px 11px;border-radius:var(--r-full);
  background:var(--line-soft);color:var(--text-3);
  font-size:11.5px;font-weight:600;transition:.16s;
}
.icon-btn svg{width:13px;height:13px;fill:currentColor;}
.icon-btn:active{transform:scale(.93);}
.icon-btn.on{background:var(--brand-light);color:var(--brand);}
.icon-btn.copy{background:var(--brand);color:#fff;}
.icon-btn.gold{background:linear-gradient(135deg,#F59E0B,#FBBF24);color:#fff;}

/* ==========================================================
   素材信息流（首页）
   ========================================================== */
.feed-search{
  display:flex;align-items:center;gap:9px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-full);
  padding:11px 16px;box-shadow:var(--sh-1);
}
.feed-search svg{width:17px;height:17px;fill:var(--text-4);flex:0 0 auto;}
.feed-search input{flex:1;font-size:14px;min-width:0;}
.feed-search input::placeholder{color:var(--text-4);}
.feed-clear{
  width:20px;height:20px;border-radius:50%;background:var(--line-soft);
  color:var(--text-3);font-size:11px;line-height:20px;text-align:center;flex:0 0 auto;
}

.feed-list{padding-top:12px;}

.feed-card{
  background:#fff;border-radius:var(--r-lg);
  padding:15px;margin-bottom:12px;
  box-shadow:var(--sh-1);border:1px solid rgba(226,232,240,.7);
  animation:viewIn .26s ease both;
}
.feed-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:9px;}
.feed-date{font-size:11.5px;color:var(--text-4);flex:0 0 auto;}

.feed-title{font-size:15px;font-weight:700;line-height:1.45;margin-bottom:7px;color:var(--text-1);}

.feed-text{
  font-size:14px;line-height:1.82;color:var(--text-2);
  white-space:pre-wrap;word-break:break-word;
  max-height:7.3em;overflow:hidden;position:relative;transition:.2s;
}
.feed-text.open{max-height:none;}
.feed-expand{
  display:block;margin-top:6px;font-size:12.5px;
  color:var(--brand);font-weight:600;
}

/* 图片区 —— 尺寸随上传原图的宽高比自适应，不裁切、不变形 */
.feed-img{margin-top:11px;}
.feed-img img{
  width:100%;display:block;border-radius:var(--r-md);
  background:var(--line-soft);cursor:pointer;
  height:auto;object-fit:contain;
}
/* 单图：完整按原图比例展示，超高图限制高度避免占满整屏 */
.feed-img.one img{max-height:600px;object-fit:contain;}
/* 多图：每张按自身比例完整展示（竖图竖排、横图横排） */
.feed-img.two,.feed-img.multi{display:flex;flex-direction:column;gap:6px;}
.feed-img.two img,.feed-img.multi img{max-height:600px;object-fit:contain;}
/* 三张及以上：首图完整展示，其余小图网格预览 */
.feed-img.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;}
.feed-img.grid .gi{position:relative;aspect-ratio:1;border-radius:var(--r-md);overflow:hidden;cursor:pointer;}
.feed-img.grid img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.feed-img.grid .more{
  position:absolute;inset:0;background:rgba(15,23,42,.55);
  color:#fff;font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  backdrop-filter:blur(2px);
}

/* 图片预览弹层：按原图比例完整展示 */
.img-preview{text-align:center;}
.img-preview img{
  max-width:100%;height:auto;border-radius:12px;
  box-shadow:var(--sh-2);display:block;margin:0 auto;
  -webkit-touch-callout:default;user-select:auto;
  -webkit-user-select:auto;touch-action:manipulation;
}
.img-save-tip{
  display:flex;align-items:center;justify-content:center;gap:7px;
  margin-top:12px;padding:10px 14px;border-radius:var(--r-md);
  background:var(--brand-light);color:var(--brand);
  font-size:12.5px;font-weight:600;line-height:1.5;text-align:left;
}
.img-save-tip svg{width:16px;height:16px;fill:var(--brand);flex-shrink:0;}
.img-save-tip span{flex:1;}

.feed-foot{
  display:flex;align-items:center;justify-content:flex-end;gap:8px;
  margin-top:13px;padding-top:11px;border-top:1px solid var(--line-soft);
}

/* ==========================================================
   我的
   ========================================================== */
.vip-card{
  border-radius:var(--r-xl);padding:18px;color:#fff;position:relative;overflow:hidden;
  background:linear-gradient(135deg,#334155 0%,#475569 100%);
  box-shadow:var(--sh-2);
}
.vip-card.active{background:linear-gradient(135deg,#B45309 0%,#F59E0B 55%,#FBBF24 100%);}
.vip-card::after{
  content:"";position:absolute;right:-30px;top:-40px;width:130px;height:130px;
  border-radius:50%;background:rgba(255,255,255,.1);
}
.vip-card-in{position:relative;z-index:2;}
.vip-card h2{font-size:18px;font-weight:800;display:flex;align-items:center;gap:7px;}
.vip-card p{font-size:12px;opacity:.88;margin-top:4px;}
.vip-card .btn{margin-top:13px;}

.user-row{
  display:flex;align-items:center;gap:12px;background:#fff;border-radius:var(--r-lg);
  padding:14px;box-shadow:var(--sh-1);border:1px solid rgba(226,232,240,.7);
}
.avatar{
  width:48px;height:48px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),#60A5FA);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:19px;font-weight:800;
}
.user-row .info{flex:1;min-width:0;}
.user-row .info b{font-size:15px;font-weight:700;display:block;}
.user-row .info span{font-size:11.5px;color:var(--text-4);}

.list-cell{
  display:flex;align-items:center;gap:12px;padding:13px 14px;
  border-bottom:1px solid var(--line-soft);transition:.16s;
}
.list-cell:last-child{border-bottom:none;}
.list-cell:active{background:var(--line-soft);}
.cell-ico{
  width:32px;height:32px;border-radius:9px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
}
.cell-ico svg{width:16px;height:16px;fill:#fff;}
.list-cell .t{flex:1;font-size:13.5px;font-weight:500;}
.list-cell .v{font-size:12.5px;color:var(--text-4);}
.list-cell .arrow{width:15px;height:15px;fill:var(--text-4);}

.stat-row{display:grid;grid-template-columns:repeat(3,1fr);background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-1);border:1px solid rgba(226,232,240,.7);padding:14px 0;}
.stat-row .s{text-align:center;}
.stat-row .s b{font-size:19px;font-weight:800;color:var(--brand);display:block;line-height:1.2;}
.stat-row .s span{font-size:11px;color:var(--text-4);}
.stat-row .s+.s{border-left:1px solid var(--line-soft);}

/* 套餐 */
.plan{
  display:flex;align-items:center;gap:12px;padding:13px 14px;border-radius:var(--r-md);
  border:1.5px solid var(--line);margin-bottom:9px;transition:.16s;background:#fff;
}
.plan.active{border-color:var(--accent);background:linear-gradient(90deg,#FFFBEB,#fff);box-shadow:0 4px 14px rgba(245,158,11,.15);}
.plan .p-left{flex:1;}
.plan .p-left b{font-size:14.5px;font-weight:700;display:flex;align-items:center;gap:6px;}
.plan .p-left span{font-size:11.5px;color:var(--text-4);}
.plan .p-price{text-align:right;}
.plan .p-price b{font-size:19px;font-weight:800;color:var(--danger);}
.plan .p-price b small{font-size:11px;font-weight:600;}
.plan .p-price del{font-size:11px;color:var(--text-4);display:block;}

/* 支付 */
.pay-box{text-align:center;padding:6px 0 4px;}
.pay-amount{font-size:30px;font-weight:800;color:var(--danger);line-height:1.2;}
.pay-amount small{font-size:15px;}
.pay-plan-name{font-size:12.5px;color:var(--text-3);margin-bottom:14px;}
.pay-qr{
  width:186px;height:186px;margin:0 auto 12px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);padding:9px;
  display:flex;align-items:center;justify-content:center;position:relative;
}
.pay-qr canvas{width:100%;height:100%;border-radius:6px;}
.pay-tip{font-size:11.5px;color:var(--text-4);line-height:1.6;}
.pay-status{
  display:inline-flex;align-items:center;gap:6px;margin-top:11px;
  font-size:12.5px;font-weight:600;color:var(--brand);
}
.spinner{
  width:13px;height:13px;border:2px solid rgba(37,99,235,.25);
  border-top-color:var(--brand);border-radius:50%;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}
.pay-ok{font-size:12.5px;font-weight:700;color:var(--success);display:flex;align-items:center;gap:6px;justify-content:center;margin-top:11px;}
.pay-ok svg{width:17px;height:17px;fill:currentColor;}

/* 详情弹层 */
.detail-h{font-size:16px;font-weight:700;margin-bottom:10px;}
.detail-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px;}
.detail-text{
  background:var(--line-soft);border-radius:var(--r-md);padding:14px;
  font-size:13.5px;line-height:1.85;white-space:pre-wrap;color:var(--text-2);
  max-height:46vh;overflow-y:auto;
}
.detail-text::-webkit-scrollbar{width:0;}

/* 骨架屏 */
.skeleton{
  background:linear-gradient(90deg,#EEF2F7 25%,#F8FAFC 50%,#EEF2F7 75%);
  background-size:200% 100%;animation:sk 1.3s infinite;
  border-radius:var(--r-md);
}
@keyframes sk{to{background-position:-200% 0;}}