/* ============================================================
   星野X学园 · 会员端页面样式
   依赖：frontend-shared tokens/base（勿改共享底座）
   铁律：圆角 LOCK 12/16/999 · 冷萃学院 70/20/10 · 反AI平铺
   ============================================================ */

/* ---------- 字体（规范要求 @font-face；本地缺文件时回退系统栈） ---------- */
@font-face{
  font-family:'PuHuiTi3';
  src:local('Alibaba PuHuiTi 3.0'), local('AlibabaPuHuiTi-3-55-Regular'),
      local('PingFang SC'), local('Microsoft YaHei');
  font-weight:400; font-style:normal; font-display:swap;
}
@font-face{
  font-family:'PuHuiTi3';
  src:local('Alibaba PuHuiTi 3.0'), local('AlibabaPuHuiTi-3-85-Bold'),
      local('PingFang SC Bold'), local('Microsoft YaHei Bold');
  font-weight:700; font-style:normal; font-display:swap;
}
@font-face{
  font-family:'Poppins';
  src:local('Poppins'), local('Poppins Regular');
  font-weight:400; font-style:normal; font-display:swap;
}
@font-face{
  font-family:'Poppins';
  src:local('Poppins SemiBold'), local('Poppins Bold');
  font-weight:600 700; font-style:normal; font-display:swap;
}

/* ---------- 布局骨架 ---------- */
#shell{ min-height:100vh; display:flex; flex-direction:column; padding-bottom:76px; }
#app{ flex:1; padding-top:24px; padding-bottom:32px; width:100%; max-width:960px; }

.topbar{
  position:sticky; top:0; z-index:40;
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  padding:14px 20px calc(14px + env(safe-area-inset-top,0px));
  background:rgba(241,240,236,.92);
  border-bottom:1px solid var(--line);
}
.brand{
  display:inline-flex; align-items:center; gap:10px;
  text-decoration:none; color:var(--ink);
}
.brand-mark{
  width:28px; height:28px; border-radius:999px;
  background:var(--main);
  box-shadow:0 0 0 4px rgba(73,187,202,.18);
}
.brand-text{ font-size:16px; font-weight:700; letter-spacing:.02em; }
.topnav{ display:flex; gap:8px; flex-wrap:wrap; justify-content:flex-end; }

.tabbar{
  position:fixed; left:0; right:0; bottom:0; z-index:50;
  display:flex; justify-content:space-around; align-items:center;
  gap:4px; padding:8px 8px calc(8px + env(safe-area-inset-bottom,0px));
  background:rgba(255,255,255,.96);
  border-top:1px solid var(--line);
}
.tab{
  flex:1; min-width:0;
  display:flex; flex-direction:column; align-items:center; gap:2px;
  padding:6px 4px; border-radius:12px;
  color:var(--text-2); text-decoration:none;
  font-size:12px; line-height:1.3;
  transition:color var(--dur-fast), background var(--dur-fast);
}
.tab .tab-icon{
  width:22px; height:22px;
  display:inline-flex; align-items:center; justify-content:center;
}
.tab .tab-icon svg{ width:20px; height:20px; display:block; }
.tab.is-active{ color:var(--ink); background:rgba(73,187,202,.12); font-weight:700; }
.tab:active{ transform:scale(.97); }

/* ---------- 排版工具（对齐 XYA 字阶） ---------- */
.eyebrow{
  font-family:'Poppins','PuHuiTi3',sans-serif;
  font-size:12px; font-weight:600; letter-spacing:.3em; text-transform:uppercase;
  color:var(--text-2); margin-bottom:8px;
}
.display{ font-size:clamp(40px,6.5vw,72px); line-height:1.1; letter-spacing:-.01em; font-weight:700; }
.h1{ font-size:clamp(28px,4.2vw,44px); line-height:1.25; letter-spacing:-.01em; font-weight:700; }
.h2{ font-size:26px; line-height:1.25; font-weight:700; }
.lead{ font-size:20px; line-height:1.7; color:var(--text-2); }
.small{ font-size:14px; line-height:1.7; letter-spacing:.01em; color:var(--text-2); }
.micro{ font-family:'Poppins','PuHuiTi3',sans-serif; font-size:12px; letter-spacing:.18em; color:var(--text-3); }
.num{ font-family:'Poppins','PuHuiTi3',sans-serif; font-variant-numeric:tabular-nums; }
.ink-2{ color:var(--text-2); }
.ink-3{ color:var(--text-3); }
.stack{ display:flex; flex-direction:column; gap:16px; }
.stack-lg{ display:flex; flex-direction:column; gap:24px; }
.row{ display:flex; align-items:center; gap:12px; }
.row-between{ display:flex; align-items:center; justify-content:space-between; gap:12px; }
.wrap{ flex-wrap:wrap; }
.mt-1{ margin-top:8px; } .mt-2{ margin-top:16px; } .mt-3{ margin-top:24px; } .mt-4{ margin-top:32px; }
.mb-1{ margin-bottom:8px; } .mb-2{ margin-bottom:16px; } .mb-3{ margin-bottom:24px; }

/* 一页一句话（反AI痕迹） */
.page-thesis{
  max-width:22em;
  font-size:20px; line-height:1.7;
  color:var(--text-2);
  margin:8px 0 28px;
}

/* ---------- 页面头 ---------- */
.page-head{ padding:8px 0 4px; }
.page-head .h1{ margin-top:4px; }

/* ---------- 胶囊标签 ---------- */
.tag{
  display:inline-flex; align-items:center; gap:6px;
  padding:4px 12px; border-radius:999px;
  font-size:12px; font-weight:700; line-height:1.4;
  background:rgba(73,187,202,.12); color:#2A7A86;
}
.tag-iris{ background:rgba(169,107,166,.12); color:#7A4576; }
.tag-lime{ background:rgba(222,232,132,.35); color:#5C6420; }
.tag-muted{ background:rgba(110,103,94,.1); color:var(--text-2); }
.tag-warn{ background:rgba(255,145,31,.14); color:#A65A00; }
.tag-danger{ background:rgba(230,77,103,.12); color:#B03046; }
.tag-ok{ background:rgba(193,210,54,.22); color:#5A6A10; }

/* ---------- 卡片变体（不做三等宽流水线） ---------- */
.panel{ background:var(--surface); border:1px solid var(--line); border-radius:16px; padding:24px; }
.panel-tight{ padding:16px; }
.panel-accent{
  background:linear-gradient(135deg, rgba(73,187,202,.14), rgba(169,107,166,.1));
  border:1px solid rgba(73,187,202,.28);
  border-radius:16px; padding:24px;
}
.list-card{
  display:flex; gap:14px; align-items:flex-start;
  background:var(--surface); border:1px solid var(--line); border-radius:16px;
  padding:18px; transition:transform var(--dur-fast), box-shadow var(--dur-fast);
}
.list-card:active{ transform:scale(.99); }
.list-card .meta{ flex:1; min-width:0; }
.list-card .title{ font-size:18px; font-weight:700; line-height:1.35; }
.list-card .desc{ font-size:14px; color:var(--text-2); line-height:1.6; margin-top:4px; }

.course-grid{ display:flex; flex-direction:column; gap:14px; }
.course-hero{
  display:flex; flex-direction:column; gap:12px;
  border-radius:16px; padding:22px;
  background:var(--surface); border:1px solid var(--line);
  border-left:4px solid var(--main);
}
.course-hero.is-full{ border-left-color:var(--text-3); }

/* 不对称双栏（反AI：拒绝三卡等宽） */
.split-2{ display:grid; grid-template-columns:1.35fr .9fr; gap:18px; align-items:start; }
@media (max-width:760px){
  .split-2{ grid-template-columns:1fr; }
}

.stat-row{ display:flex; gap:12px; flex-wrap:wrap; }
.stat{
  flex:1 1 120px;
  background:var(--surface); border:1px solid var(--line); border-radius:16px;
  padding:16px 18px;
}
.stat .label{ font-size:12px; letter-spacing:.12em; color:var(--text-3); text-transform:uppercase; }
.stat .value{ font-family:'Poppins','PuHuiTi3',sans-serif; font-size:28px; font-weight:700; line-height:1.2; margin-top:6px; }

/* ---------- 表单 ---------- */
.form-card{
  background:var(--surface); border:1px solid var(--line); border-radius:16px;
  padding:24px; display:flex; flex-direction:column; gap:16px;
}
.field{ display:flex; flex-direction:column; gap:6px; }
.field-row{ display:flex; gap:10px; align-items:flex-end; }
.field-row .input{ flex:1; }
.sms-row{ display:flex; gap:10px; }
.sms-row .input{ flex:1; }
.sms-btn{
  flex:0 0 auto; min-width:110px;
  padding:12px 16px; border-radius:999px; border:1.5px solid var(--main);
  background:var(--surface); color:var(--main);
  font-family:inherit; font-size:14px; font-weight:700; cursor:pointer;
}
.sms-btn[disabled]{ opacity:.45; cursor:not-allowed; border-color:var(--line-strong); color:var(--text-3); }

.hint{ font-size:12px; color:var(--text-3); line-height:1.5; }
.error-text{ font-size:13px; color:var(--danger); min-height:1.2em; }

/* ---------- 筛选条（操作页 density-tight） ---------- */
.filter-bar{
  display:flex; flex-wrap:wrap; gap:8px;
  margin:8px 0 18px;
}
.chip{
  appearance:none; border:1.5px solid var(--line-strong);
  background:var(--surface); color:var(--text-2);
  border-radius:999px; padding:8px 14px;
  font-family:inherit; font-size:13px; font-weight:700;
  cursor:pointer;
  transition:background var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast);
}
.chip.is-on{
  background:var(--main); border-color:var(--main); color:var(--ink);
}
.chip:active{ transform:scale(.97); }

.select-wrap{ position:relative; }
.select{
  appearance:none; -webkit-appearance:none;
  padding-right:36px;
  background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),
                   linear-gradient(135deg,var(--text-2) 50%,transparent 50%);
  background-position:calc(100% - 18px) calc(50% + 2px), calc(100% - 12px) calc(50% + 2px);
  background-size:6px 6px, 6px 6px;
  background-repeat:no-repeat;
}

/* ---------- 分页 ---------- */
.pager{
  display:flex; align-items:center; justify-content:center; gap:12px;
  margin:22px 0 8px;
}
.pager .page-info{ font-family:'Poppins','PuHuiTi3',sans-serif; font-size:13px; color:var(--text-2); }

/* ---------- 钱包 / 券 ---------- */
.coupon-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:14px; }
@media (max-width:700px){ .coupon-grid{ grid-template-columns:1fr; } }

.coupon{
  position:relative;
  background:var(--surface); border-radius:16px; border:1px solid var(--line);
  padding:20px; overflow:hidden;
}
.coupon::before{
  content:''; position:absolute; left:0; top:14px; bottom:14px; width:4px;
  background:var(--main); border-radius:0 4px 4px 0;
}
.coupon.type-specified::before{ background:var(--accent); }
.coupon.type-trial::before{ background:var(--point); }
.coupon .count{ font-family:'Poppins','PuHuiTi3',sans-serif; font-size:36px; font-weight:700; line-height:1; }

/* ---------- 明细表 ---------- */
.feed{ display:flex; flex-direction:column; gap:10px; }
.feed-item{
  display:flex; justify-content:space-between; gap:12px; align-items:flex-start;
  padding:14px 16px; border-radius:16px; background:var(--surface); border:1px solid var(--line);
}
.feed-item .when{ font-family:'Poppins','PuHuiTi3',sans-serif; font-size:12px; color:var(--text-3); }
.feed-item .delta{ font-family:'Poppins','PuHuiTi3',sans-serif; font-size:18px; font-weight:700; }
.delta.plus{ color:#2A7A86; }
.delta.minus{ color:var(--danger); }

/* ---------- 二维码 / 邀请 ---------- */
.qr-box{
  width:200px; height:200px; border-radius:16px;
  border:1px solid var(--line-strong); background:var(--surface);
  display:flex; align-items:center; justify-content:center;
  margin:0 auto;
}
.qr-box canvas, .qr-box img{ width:168px; height:168px; display:block; }
.code-banner{
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  padding:16px 18px; border-radius:16px;
  background:rgba(222,232,132,.28); border:1px solid rgba(193,210,54,.35);
}
.code-banner .code{
  font-family:'Poppins','PuHuiTi3',sans-serif;
  font-size:28px; font-weight:700; letter-spacing:.16em;
}

/* ---------- 消息 ---------- */
.msg{
  display:flex; gap:12px; align-items:flex-start;
  padding:16px 18px; border-radius:16px;
  background:var(--surface); border:1px solid var(--line);
}
.msg.is-unread{ border-color:rgba(73,187,202,.45); box-shadow:0 0 0 3px rgba(73,187,202,.08); }
.msg .dot{
  width:8px; height:8px; border-radius:999px; background:var(--main); margin-top:8px; flex:0 0 auto;
}
.msg .dot.off{ background:var(--line-strong); }

/* ---------- 弹层 ---------- */
.modal-backdrop{
  position:fixed; inset:0; z-index:80;
  background:rgba(31,28,23,.42);
  display:flex; align-items:flex-end; justify-content:center;
  padding:16px;
}
.modal{
  width:min(520px, 100%);
  background:var(--surface); border-radius:16px;
  padding:24px; max-height:86vh; overflow:auto;
  box-shadow:var(--shadow-card);
  animation:fadeIn var(--dur) var(--ease) both;
}
.modal h3{ font-size:22px; line-height:1.3; margin-bottom:8px; }

/* ---------- Toast ---------- */
.toast{
  position:fixed; left:50%; bottom:96px; transform:translateX(-50%) translateY(12px);
  z-index:100;
  background:var(--ink); color:var(--base);
  padding:12px 18px; border-radius:999px;
  font-size:14px; font-weight:700;
  opacity:0; pointer-events:none;
  transition:opacity var(--dur), transform var(--dur);
  max-width:min(88vw, 360px); text-align:center;
}
.toast.is-on{ opacity:1; transform:translateX(-50%) translateY(0); }

/* ---------- 空 / 加载 ---------- */
.empty{
  padding:36px 20px; text-align:center;
  border:1px dashed var(--line-strong); border-radius:16px;
  color:var(--text-2);
}
.empty .title{ font-size:18px; font-weight:700; color:var(--ink); margin-bottom:6px; }
.loading-line{
  display:flex; align-items:center; gap:10px; justify-content:center;
  padding:28px 12px; color:var(--text-2);
}
.spinner{
  width:18px; height:18px; border-radius:999px;
  border:2px solid var(--line-strong); border-top-color:var(--main);
  animation:spin .8s linear infinite;
}
@keyframes spin{ to{ transform:rotate(360deg); } }
@media (prefers-reduced-motion: reduce){
  .spinner{ animation:none; }
}

/* ---------- 按钮补充 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:12px 24px; border-radius:999px; border:none; cursor:pointer;
  font-family:inherit; font-size:16px; font-weight:700; line-height:1.2;
  transition:transform var(--dur-fast), opacity var(--dur-fast), background var(--dur);
  min-height:46px; touch-action:manipulation;
}
.btn:active{ transform:scale(.97); }
.btn[disabled]{ opacity:.4; cursor:not-allowed; }
.btn-primary{ background:var(--main); color:var(--ink); } /* 湖蓝底必须墨黑字 */
.btn-outline{ background:var(--surface); color:var(--main); border:1.5px solid var(--main); }
.btn-ghost{ background:transparent; color:var(--text-2); }
.btn-danger{ background:var(--surface); color:var(--danger); border:1.5px solid var(--danger); }
.btn-block{ width:100%; }
.btn-sm{ min-height:38px; padding:8px 16px; font-size:14px; }

/* ---------- 登录专用 ---------- */
.login-shell{ max-width:480px; margin:0 auto; padding-top:12px; }
.login-hero{
  padding:28px 8px 20px;
}
.login-hero .display{ font-size:clamp(36px,9vw,56px); }

/* ---------- 密度：找/操作页 ---------- */
.page-courses .filter-bar,
.page-enrollments .feed,
.page-points .feed,
.page-withdrawals .feed,
.page-messages .stack{
  font-size:14px; line-height:1.6;
}

/* 顶栏小屏收纳 */
@media (max-width:560px){
  .topnav{ display:none; }
  #shell{ padding-bottom:72px; }
  .brand-text{ font-size:15px; }
}

/* 轻 reveal（档位3，一次） */
.reveal{ animation:fadeIn var(--dur-slow) var(--ease) both; }
@media (prefers-reduced-motion: reduce){
  .reveal{ animation:none; }
}