/* ============================================================
   家长诊断预约系统 · 原型样式
   ============================================================ */
:root{
  --brand:#0d9488; --brand-2:#14b8a6; --brand-soft:#e4f6f5; --brand-ink:#0f766e;
  --brand-blue:#2563eb; --brand-blue-soft:#eaf1fe;
  --grad:linear-gradient(135deg,#0ea5a4 0%,#2563eb 100%);
  --bg:#f2f4f7; --card:#ffffff; --card-2:#fafbfc;
  --ink:#1a1d21; --ink-2:#5b6470; --ink-3:#8b939c;
  --line:#e6e9ee; --line-2:#f0f2f5;
  --ok:#0f8a5f; --ok-soft:#e8f6f0;
  --warn:#b3690a; --warn-soft:#fdf3e3;
  --danger:#c0392b; --danger-soft:#fdeceb;
  --purple:#6d4aff; --purple-soft:#f0ecff;
  --r:12px; --r-sm:8px;
  --shadow:0 1px 2px rgba(16,24,40,.05), 0 6px 20px rgba(16,24,40,.06);
  --shadow-lg:0 8px 40px rgba(16,24,40,.16);
}
*{box-sizing:border-box; -webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink); min-height:100vh;
  font:15px/1.65 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand); text-decoration:none}
button{font-family:inherit}

/* ---------- 布局 ---------- */
.appbar{
  position:sticky; top:0; z-index:30; background:rgba(255,255,255,.88);
  backdrop-filter:saturate(180%) blur(14px); border-bottom:1px solid var(--line);
  padding:12px 18px; display:flex; align-items:center; gap:10px;
}
.appbar .brand{display:flex; align-items:center; gap:8px; font-weight:700; font-size:15px}
.appbar .brand .dot{
  width:22px;height:22px;border-radius:7px;background:linear-gradient(135deg,var(--brand),var(--purple));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:12px;font-weight:800;
}
.appbar .spacer{flex:1}
.appbar .navlink{font-size:13px;color:var(--ink-2);padding:5px 10px;border-radius:7px}
.appbar .navlink:hover{background:var(--line-2); color:var(--brand)}

.wrap{max-width:760px; margin:0 auto; padding:18px 16px 120px}
.wrap.wide{max-width:1120px}
@media(min-width:900px){ .wrap{padding-top:26px} }

.card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--r);
  padding:18px; box-shadow:var(--shadow); margin-bottom:14px;
}
.card.tight{padding:14px}
.sec-title{
  font-size:12px; font-weight:700; letter-spacing:.6px; color:var(--ink-3);
  text-transform:uppercase; margin:20px 2px 8px;
}
.sec-title:first-child{margin-top:4px}

/* ---------- 老师卡 ---------- */
.teacher-card{display:flex; gap:14px; align-items:flex-start}
.avatar{
  width:52px;height:52px;border-radius:14px;flex:0 0 52px;
  background:linear-gradient(135deg,var(--brand),var(--purple));
  color:#fff; display:flex; align-items:center; justify-content:center;
  font-size:19px; font-weight:700; letter-spacing:-.5px;
}
.avatar.sm{width:38px;height:38px;flex-basis:38px;font-size:15px;border-radius:11px}
.tc-name{font-size:19px;font-weight:700;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.tc-sub{font-size:13px;color:var(--ink-2);margin-top:3px}
.tc-intro{font-size:13px;color:var(--ink-2);margin-top:10px;line-height:1.7}
.chip{
  display:inline-flex; align-items:center; gap:4px; padding:2px 9px; border-radius:20px;
  font-size:11.5px; font-weight:600; line-height:1.8; white-space:nowrap;
}
.chip.subject{background:var(--brand-soft); color:var(--brand-ink)}
.chip.gray{background:#f1f3f5; color:#6b7280}
.chip.ok{background:var(--ok-soft); color:var(--ok)}
.chip.warn{background:var(--warn-soft); color:var(--warn)}
.chip.danger{background:var(--danger-soft); color:var(--danger)}
.chip.purple{background:var(--purple-soft); color:var(--purple)}

/* ---------- 日期 tabs ---------- */
.datetabs{display:flex; gap:8px; overflow-x:auto; padding:2px 0 6px; margin:0 -2px}
.datetabs::-webkit-scrollbar{display:none}
.datetab{
  flex:0 0 auto; background:var(--card); border:1px solid var(--line); border-radius:10px;
  padding:8px 14px; text-align:center; cursor:pointer; transition:.15s; min-width:78px;
}
.datetab .d1{font-size:15px; font-weight:700; line-height:1.3}
.datetab .d2{font-size:11px; color:var(--ink-3); margin-top:1px}
.datetab.active{background:var(--brand); border-color:var(--brand); color:#fff}
.datetab.active .d2{color:rgba(255,255,255,.8)}

/* ---------- 时段 ---------- */
.slots{display:grid; gap:9px}
.slot{
  display:flex; align-items:center; gap:12px; padding:13px 14px;
  border:1px solid var(--line); border-radius:10px; background:var(--card);
  cursor:pointer; transition:.15s; position:relative;
}
.slot:hover{border-color:#c9d9f7; background:#fcfdff}
.slot .time{font-size:15px; font-weight:700; font-variant-numeric:tabular-nums; min-width:96px}
.slot .meta{font-size:12px; color:var(--ink-3); margin-top:2px}
.slot .spacer{flex:1}
.slot .quota{font-size:12px; font-weight:700; text-align:right; white-space:nowrap}
.slot .quota .num{font-size:16px}
.slot.sel{border-color:var(--brand); background:var(--brand-soft); box-shadow:0 0 0 3px rgba(31,111,235,.10)}
.slot.disabled{opacity:.55; cursor:not-allowed; background:#fafbfc}
.slot.disabled:hover{border-color:var(--line); background:#fafbfc}
.slot .tick{
  position:absolute; right:-1px; top:-1px; width:0;height:0; border:13px solid transparent;
  border-top-color:var(--brand); border-right-color:var(--brand); border-radius:0 10px 0 0; display:none;
}
.slot.sel .tick{display:block}
.q-ok{color:var(--ok)} .q-low{color:var(--warn)} .q-zero{color:var(--ink-3)}

/* ---------- 在读校验 + 多老师预约 ---------- */
.subject-group{margin-bottom:22px}
.subject-group .sg-head{
  display:flex; align-items:center; gap:9px; margin:6px 2px 10px;
  font-size:16px; font-weight:700;
}
.subject-group .sg-head .sg-dot{
  width:8px;height:8px;border-radius:3px;background:var(--brand);display:inline-block;
}
.t-block{border:1px solid var(--line); border-radius:12px; background:var(--card); margin-bottom:10px; overflow:hidden}
.t-block.enrolled{border-color:#bfd4f8; background:#fbfdff}
.t-block .tb-head{display:flex; gap:11px; align-items:center; padding:13px 14px}
.t-block .tb-head .who{flex:1;min-width:0}
.t-block .tb-head .nm{font-size:15px;font-weight:700;display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.t-block .tb-head .sub{font-size:12px;color:var(--ink-3);margin-top:2px}
.t-block .tb-slots{padding:2px 14px 14px; border-top:1px solid var(--line-2)}
.date-label{
  font-size:12px; font-weight:700; color:var(--ink-3); margin:12px 0 7px;
  display:flex; align-items:center; gap:7px;
}
.date-label .cnt{font-weight:500;color:var(--ink-3)}
.tchips{display:flex; flex-wrap:wrap; gap:8px}
.tchip{
  border:1px solid var(--line); border-radius:9px; background:var(--card);
  padding:8px 12px; cursor:pointer; text-align:left; transition:.13s; line-height:1.35;
}
.tchip .t{font-size:14px;font-weight:700;font-variant-numeric:tabular-nums}
.tchip .q{font-size:11.5px;color:var(--ink-3);margin-top:1px}
.tchip .q b{color:var(--ok)}
.tchip:hover{border-color:#c9d9f7}
.tchip.sel{border-color:var(--brand); background:var(--brand-soft); box-shadow:0 0 0 3px rgba(31,111,235,.10)}
.tchip.sel .q b{color:var(--brand-ink)}
.tchip.disabled{opacity:.45; cursor:not-allowed}
.tchip.disabled .q b{color:var(--ink-3)}
.field input[readonly], .field input:disabled{background:var(--line-2); color:var(--ink-2)}
.noslots{font-size:12.5px;color:var(--ink-3);padding:12px 0 4px}

/* ---------- 老师资料：标签 + 图片介绍 ---------- */
.tagpicks{display:flex;flex-wrap:wrap;gap:8px}
.tagpick{
  border:1px solid var(--line); border-radius:20px; padding:5px 13px;
  font-size:13px; font-weight:600; color:var(--ink-2); background:var(--card);
  cursor:pointer; transition:.13s; user-select:none;
}
.tagpick:hover{border-color:#c9d9f7}
.tagpick.on{background:var(--brand-soft); border-color:var(--brand); color:var(--brand-ink)}
.imgpick{
  border:1.5px dashed var(--line); border-radius:12px; padding:16px; text-align:center;
  cursor:pointer; background:var(--card-2); transition:.15s;
}
.imgpick:hover{border-color:var(--brand)}
.imgpick img{max-width:100%; max-height:300px; border-radius:8px; margin:0 auto 8px; display:block}
.imgpick .pl{font-size:26px; margin-bottom:4px}
.imgpick .t{font-size:14px; font-weight:600}
.imgpick .hint{font-size:12px; color:var(--ink-3); margin-top:4px}
.introimg{width:100%; border-radius:10px; display:block}
.intro-btn{
  width:100%; margin-top:10px; display:flex; align-items:center; gap:8px; justify-content:center;
  padding:10px; border:1px dashed var(--line); border-radius:9px; background:var(--card-2);
  color:var(--ink-2); font-size:13.5px; font-weight:600; cursor:pointer;
}
.intro-btn:hover{border-color:var(--brand); color:var(--brand)}

/* ---------- 表单 ---------- */
.field{margin-bottom:14px}
.field label{display:block; font-size:13px; font-weight:600; color:var(--ink-2); margin-bottom:6px}
.field label .req{color:var(--danger); margin-left:2px}
.field input[type=text], .field input[type=tel], .field input[type=date], .field input[type=time],
.field input[type=number], .field select, .field textarea{
  width:100%; padding:11px 12px; border:1px solid var(--line); border-radius:9px;
  font-size:15px; font-family:inherit; background:var(--card); color:var(--ink);
  transition:.15s; outline:none;
}
.field textarea{resize:vertical; min-height:70px; line-height:1.6}
.field input:focus, .field select:focus, .field textarea:focus{
  border-color:var(--brand); box-shadow:0 0 0 3px rgba(31,111,235,.12);
}
.field .hint{font-size:12px; color:var(--ink-3); margin-top:5px}
.row2{display:grid; grid-template-columns:1fr 1fr; gap:12px}
@media(max-width:520px){ .row2{grid-template-columns:1fr} }

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:6px;
  padding:11px 18px; border-radius:9px; border:1px solid var(--line); background:var(--card);
  color:var(--ink); font-size:14.5px; font-weight:600; cursor:pointer; transition:.15s;
  white-space:nowrap;
}
.btn:hover{background:var(--line-2)}
.btn.primary{background:var(--grad); border-color:transparent; color:#fff; box-shadow:0 4px 14px rgba(13,148,136,.25)}
.btn.primary:hover{filter:brightness(1.06); border-color:transparent; box-shadow:0 6px 18px rgba(13,148,136,.32)}
.btn.ghost{background:transparent}
.btn.sm{padding:6px 12px; font-size:13px; border-radius:8px}
.btn.block{width:100%}
.btn:disabled{opacity:.5; cursor:not-allowed}
.btn.danger{color:var(--danger); border-color:#f3cdc9}
.btn.danger:hover{background:var(--danger-soft)}
.btn.ok{color:var(--ok); border-color:#bfe3d3}
.btn.ok:hover{background:var(--ok-soft)}

/* ---------- 底部操作条 ---------- */
.actionbar{
  position:fixed; left:0; right:0; bottom:0; z-index:40;
  background:rgba(255,255,255,.94); backdrop-filter:saturate(180%) blur(14px);
  border-top:1px solid var(--line); padding:12px 16px calc(12px + env(safe-area-inset-bottom));
  transform:translateY(110%); transition:transform .22s cubic-bezier(.32,.72,0,1);
}
.actionbar.show{transform:translateY(0)}
.actionbar .inner{max-width:760px;margin:0 auto;display:flex;align-items:center;gap:12px}
.actionbar .info{flex:1;min-width:0}
.actionbar .info .t{font-size:14px;font-weight:700}
.actionbar .info .s{font-size:12px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------- 弹层 ---------- */
.mask{
  position:fixed; inset:0; background:rgba(16,24,40,.42); z-index:50;
  display:none; align-items:flex-end; justify-content:center; padding:0;
}
.mask.show{display:flex}
@media(min-width:640px){ .mask{align-items:center; padding:24px} }
.sheet{
  background:var(--card); width:100%; max-width:560px; max-height:92vh; overflow-y:auto;
  border-radius:18px 18px 0 0; padding:20px 18px calc(20px + env(safe-area-inset-bottom));
  animation:up .24s cubic-bezier(.32,.72,0,1);
}
@media(min-width:640px){ .sheet{border-radius:16px; padding-bottom:20px} }
@keyframes up{from{transform:translateY(30px);opacity:.6}to{transform:translateY(0);opacity:1}}
.sheet h3{margin:0 0 4px; font-size:17px}
.sheet .sub{font-size:13px; color:var(--ink-3); margin-bottom:16px}
.sheet .grab{width:38px;height:4px;border-radius:3px;background:var(--line);margin:-8px auto 14px}

/* ---------- 状态 / 提示 ---------- */
.empty{text-align:center; color:var(--ink-3); padding:44px 20px; font-size:14px}
.empty .big{font-size:34px; margin-bottom:10px; opacity:.5}
.banner{
  border-radius:10px; padding:11px 14px; font-size:13px; margin-bottom:14px;
  display:flex; gap:9px; align-items:flex-start; line-height:1.6;
}
.banner.info{background:var(--brand-soft); color:var(--brand-ink)}
.banner.warn{background:var(--warn-soft); color:var(--warn)}
.banner.ok{background:var(--ok-soft); color:var(--ok)}
.banner.danger{background:var(--danger-soft); color:var(--danger)}
.banner b{font-weight:700}
.toast{
  position:fixed; left:50%; top:24px; transform:translate(-50%,-16px); z-index:90;
  background:#1d2129; color:#fff; padding:11px 18px; border-radius:10px; font-size:13.5px;
  box-shadow:var(--shadow-lg); opacity:0; pointer-events:none; transition:.22s; max-width:88vw;
}
.toast.show{opacity:1; transform:translate(-50%,0)}
.toast.err{background:#8f2b21}
.toast.ok{background:#0d6b4a}

.spinner{
  width:16px;height:16px;border:2px solid rgba(255,255,255,.35); border-top-color:#fff;
  border-radius:50%; animation:spin .7s linear infinite; display:inline-block;
}
.spinner.dark{border-color:rgba(31,111,235,.25); border-top-color:var(--brand)}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 成功页 ---------- */
.success-hero{text-align:center; padding:26px 18px 20px}
.success-hero .mark{
  width:62px;height:62px;border-radius:50%;background:var(--ok-soft);color:var(--ok);
  display:flex;align-items:center;justify-content:center;font-size:30px;margin:0 auto 14px;
  animation:pop .35s cubic-bezier(.32,.72,0,1);
}
@keyframes pop{from{transform:scale(.6);opacity:0}to{transform:scale(1);opacity:1}}
.success-hero h2{margin:0 0 6px; font-size:20px}
.success-hero p{margin:0; color:var(--ink-2); font-size:13.5px}

.kv{display:grid; grid-template-columns:auto 1fr; gap:9px 16px; font-size:13.5px}
.kv .k{color:var(--ink-3); white-space:nowrap}
.kv .v{font-weight:600; text-align:right; word-break:break-all}

.qrbox{
  border:1px dashed var(--line); border-radius:12px; padding:18px; text-align:center;
  background:var(--card-2);
}
.qrbox .qr{width:172px;height:172px;margin:0 auto 12px; display:block; border-radius:6px; background:#fff; padding:6px}
.qrbox .cap{font-size:13px; font-weight:600}
.qrbox .note{font-size:12px; color:var(--ink-3); margin-top:5px; line-height:1.6}

/* ---------- 列表 / 表格 ---------- */
.statgrid{display:grid; grid-template-columns:repeat(auto-fit,minmax(112px,1fr)); gap:10px}
.stat{
  background:var(--card); border:1px solid var(--line); border-radius:11px; padding:13px 14px;
}
.stat .n{font-size:23px; font-weight:700; line-height:1.2; font-variant-numeric:tabular-nums}
.stat .l{font-size:12px; color:var(--ink-3); margin-top:2px}
.stat.hl{background:var(--brand-soft); border-color:#cfe0fc}
.stat.hl .n{color:var(--brand-ink)}
.stat.warn{background:var(--warn-soft); border-color:#f2dcba}
.stat.warn .n{color:var(--warn)}

.toolbar{display:flex; gap:8px; flex-wrap:wrap; align-items:center; margin-bottom:12px}
.tabs{display:inline-flex; background:var(--line-2); border-radius:9px; padding:3px; gap:2px}
.tabs button{
  border:none; background:transparent; padding:6px 13px; border-radius:7px;
  font-size:13px; font-weight:600; color:var(--ink-2); cursor:pointer; transition:.15s;
}
.tabs button.on{background:var(--card); color:var(--brand); box-shadow:0 1px 3px rgba(16,24,40,.10)}

.bk{
  border:1px solid var(--line); border-radius:11px; background:var(--card);
  margin-bottom:10px; overflow:hidden;
}
.bk .head{display:flex; gap:12px; align-items:center; padding:13px 15px; cursor:pointer}
.bk .head:hover{background:var(--card-2)}
.bk .when{font-size:13px; font-weight:700; font-variant-numeric:tabular-nums; white-space:nowrap}
.bk .who{flex:1; min-width:0}
.bk .who .n{font-size:14.5px; font-weight:600; display:flex; align-items:center; gap:7px; flex-wrap:wrap}
.bk .who .m{font-size:12px; color:var(--ink-3); margin-top:2px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis}
.bk .body{display:none; border-top:1px solid var(--line-2); padding:14px 15px; background:var(--card-2)}
.bk.open .body{display:block}
.bk .body .kv{grid-template-columns:78px 1fr; gap:7px 12px}
.bk .body .kv .v{text-align:left; font-weight:500}
.bk .actions{display:flex; gap:8px; flex-wrap:wrap; margin-top:14px; padding-top:13px; border-top:1px dashed var(--line)}

.tbl{width:100%; border-collapse:collapse; font-size:13px}
.tbl th,.tbl td{border-bottom:1px solid var(--line-2); padding:9px 8px; text-align:left; vertical-align:middle}
.tbl th{font-size:12px; color:var(--ink-3); font-weight:600; background:var(--card-2)}
.tbl td.num{font-variant-numeric:tabular-nums; white-space:nowrap}
.tbl tr:last-child td{border-bottom:none}
.tbl .bar{height:6px;border-radius:4px;background:var(--line);overflow:hidden;min-width:56px}
.tbl .bar i{display:block;height:100%;background:var(--brand);border-radius:4px}
.tbl .bar.full i{background:var(--warn)}

.acc{border:1px solid var(--line); border-radius:11px; background:var(--card); margin-bottom:10px; overflow:hidden}
.acc .ah{display:flex; gap:12px; align-items:center; padding:14px 15px; cursor:pointer}
.acc .ah:hover{background:var(--card-2)}
.acc .ah .chev{color:var(--ink-3); transition:.2s; font-size:12px}
.acc.open .ah .chev{transform:rotate(90deg)}
.acc .ab{display:none; padding:0 15px 16px; border-top:1px solid var(--line-2)}
.acc.open .ab{display:block}
.code{
  font-family:"SF Mono",Menlo,Consolas,monospace; font-size:12px; background:var(--line-2);
  border:1px solid var(--line); border-radius:6px; padding:3px 7px; color:#b03a5b; word-break:break-all;
}
.link-row{display:flex; gap:8px; align-items:center; margin-top:8px}
.link-row .code{flex:1; min-width:0}
.hidden{display:none !important}
.mt8{margin-top:8px} .mt14{margin-top:14px} .mb0{margin-bottom:0}
.flex{display:flex; gap:8px; align-items:center; flex-wrap:wrap}
.muted{color:var(--ink-3); font-size:12.5px}

/* ============================================================
   品牌广告区（青蓝小灶诊）
   ============================================================ */
.hero{
  position:relative; overflow:hidden; border-radius:20px;
  background:linear-gradient(135deg,#0d9488 0%,#0ea5a4 40%,#2563eb 100%);
  color:#fff; padding:28px 24px 26px; margin-bottom:16px;
  box-shadow:0 12px 34px rgba(13,148,136,.30);
}
.hero::before{  /* 柔光晕 */
  content:""; position:absolute; inset:0; pointer-events:none;
  background:
    radial-gradient(120% 90% at 88% -12%, rgba(255,255,255,.30), transparent 55%),
    radial-gradient(90% 80% at -12% 112%, rgba(255,255,255,.16), transparent 52%);
}
.hero .orbs i{position:absolute; border-radius:50%; pointer-events:none}
.hero .orbs i:nth-child(1){width:130px;height:130px; right:-34px; top:-34px; border:1.6px solid rgba(255,255,255,.24)}
.hero .orbs i:nth-child(2){width:78px;height:78px; right:28px; bottom:-22px; border:1.6px solid rgba(255,255,255,.20)}
.hero .orbs i:nth-child(3){width:10px;height:10px; right:64px; top:30px; background:rgba(255,255,255,.55)}
.hero .orbs i:nth-child(4){width:6px;height:6px; right:110px; bottom:26px; background:rgba(255,255,255,.4)}
.hero-inner{position:relative; z-index:1}
.hero-logo{margin-bottom:14px}
.hero-logo img{
  width:58px;height:58px;border-radius:15px;object-fit:cover;
  box-shadow:0 6px 18px rgba(0,0,0,.22); border:2px solid rgba(255,255,255,.65);
}
.hero-badge{
  display:inline-flex; align-items:center; gap:6px; padding:5px 13px; border-radius:20px;
  background:rgba(255,255,255,.16); border:1px solid rgba(255,255,255,.30);
  font-size:12.5px; font-weight:600; letter-spacing:.4px; backdrop-filter:blur(4px);
}
.hero-title{
  margin:15px 0 0; font-size:31px; font-weight:800; letter-spacing:1.5px; line-height:1.15;
  text-shadow:0 2px 12px rgba(0,0,0,.14);
}
.hero-slogan{display:flex; align-items:center; gap:9px; margin-top:6px; font-size:21px; font-weight:700}
.hero-slogan .rise{
  display:inline-flex; align-items:center; justify-content:center; width:26px; height:26px;
  border-radius:8px; background:rgba(255,255,255,.20); font-size:15px;
  animation:rise 1.8s ease-in-out infinite;
}
@keyframes rise{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
.hero-sub{margin:12px 0 0; font-size:13px; opacity:.92; line-height:1.85}
.hero-sub b{font-weight:700}
.hero-points{display:flex; gap:8px; flex-wrap:wrap; margin-top:15px}
.hero-point{
  display:inline-flex; align-items:center; gap:5px; padding:5px 11px; border-radius:9px;
  background:rgba(255,255,255,.14); border:1px solid rgba(255,255,255,.22);
  font-size:12px; font-weight:600; letter-spacing:.3px;
}
.hero-img{margin-top:16px; border-radius:12px; overflow:hidden; display:none}
.hero-img.show{display:block}
.hero-img img{width:100%; display:block; border-radius:12px}
.hero-img .ph{
  border:1.5px dashed rgba(255,255,255,.5); border-radius:12px; padding:18px;
  text-align:center; font-size:12.5px; opacity:.9; background:rgba(255,255,255,.08);
}

/* ============================================================
   品牌背书（家长好评 + 讲义示例）
   ============================================================ */
.brand-logo{width:24px;height:24px;border-radius:7px;object-fit:cover;box-shadow:0 1px 3px rgba(0,0,0,.14)}
.proof{margin-top:6px}
.proof-head{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.proof-ico{font-size:22px; line-height:1}
.proof-t{font-weight:700;font-size:14.5px}
.praise-img{width:100%;border-radius:10px;display:block;border:1px solid var(--line)}
.material-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.material-grid img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:10px;border:1px solid var(--line);background:var(--card-2)}
.material-grid img:first-child{grid-column:1 / -1;aspect-ratio:16/9}
.foot-brand{text-align:center;margin-top:26px;padding:6px 0 4px}
.fb-name{font-size:14px;font-weight:700;color:var(--ink-2)}
.fb-slogan{font-size:12px;color:var(--ink-3);margin-top:3px;letter-spacing:1px}