/* Eastern Wisdom Reading · global styles (mobile first) */

:root {
  /* Primary palette: lacquer red and antique gold */
  --gold: #c8963c;
  --gold-light: #e8c07a;
  --gold-dim: rgba(200, 150, 60, .14);
  --red: #b8352f;
  --red-light: #d9534f;
  --red-dim: rgba(184, 53, 47, .1);
  --ink: #1f1a16;
  --ink-2: #4a4038;
  --ink-3: #7a6e63;
  --ink-4: #a89c90;
  --paper: #fdfaf5;
  --paper-2: #f6f0e6;
  --line: rgba(31, 26, 22, .09);
  --white: #fff;

  /* Five Element colours */
  --wx-mu: #0d9f6e;
  --wx-huo: #e53e3e;
  --wx-tu: #c08a1e;
  --wx-jin: #6b7a8f;
  --wx-shui: #2b6cb0;

  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 2px 14px rgba(80, 55, 20, .07);
  --shadow-lg: 0 8px 34px rgba(80, 55, 20, .13);
  --safe-b: env(safe-area-inset-bottom, 0px);
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html {
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper-2);
  line-height: 1.75;
  font-size: 15px;
  overflow-x: hidden;
  background-image:
    radial-gradient(circle at 15% 8%, rgba(200,150,60,.07), transparent 42%),
    radial-gradient(circle at 85% 22%, rgba(184,53,47,.05), transparent 40%);
  background-attachment: fixed;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* Hard guard: never allow horizontal overflow */
html, body { max-width: 100vw; overflow-x: hidden; }
img, svg, video, canvas, table { max-width: 100%; }
/* Wrap long CJK and Latin strings */
p, li, td, div, span { word-break: break-word; overflow-wrap: anywhere; }

/* ============ Layout ============ */

.wrap { width: 100%; max-width: 520px; margin: 0 auto; padding: 0 16px; }
.wrap-wide { max-width: 680px; }

@media (min-width: 480px) {
  html { font-size: 17px; }
  .wrap { padding: 0 22px; }
}

/* ============ Top navigation ============ */

.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(253, 250, 245, .93);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  padding: 10px 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.nav-logo { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 1.05rem; letter-spacing: .5px; }
.nav-logo .seal {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--red), var(--red-light));
  color: var(--gold-light); display: grid; place-items: center;
  font-size: 16px; font-weight: 700; box-shadow: 0 2px 8px rgba(184,53,47,.28);
}
.nav-back { font-size: .88rem; color: var(--ink-3); display: flex; align-items: center; gap: 3px; }

/* ============ Buttons ============ */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 13px 26px; border-radius: 999px; font-weight: 600; font-size: 1rem;
  transition: transform .12s, box-shadow .2s, opacity .2s;
  text-align: center; line-height: 1.3;
}
.btn:active { transform: scale(.975); }
.btn-gold {
  background: linear-gradient(135deg, #d4a54a, var(--gold) 55%, #a87828);
  color: #fff; box-shadow: 0 4px 18px rgba(200,150,60,.4);
}
.btn-red {
  background: linear-gradient(135deg, var(--red-light), var(--red));
  color: #fff; box-shadow: 0 4px 18px rgba(184,53,47,.35);
}
.btn-ghost { background: var(--gold-dim); color: var(--gold); border: 1px solid rgba(200,150,60,.34); }
.btn-block { display: flex; width: 100%; }
.btn-lg { padding: 16px 30px; font-size: 1.06rem; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ============ Cards ============ */

.card {
  background: var(--white); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow); margin-bottom: 14px;
  border: 1px solid rgba(200,150,60,.1);
}
.card-pad-sm { padding: 15px; }

/* ============ Chapters ============ */

.section { margin-bottom: 18px; }
.section-head {
  display: flex; align-items: center; gap: 10px; margin-bottom: 12px;
  padding: 13px 16px; border-radius: var(--radius);
  background: linear-gradient(135deg, var(--white), #fdf8ef);
  box-shadow: var(--shadow); border: 1px solid rgba(200,150,60,.16);
  border-left: 4px solid var(--gold);
}
.section-head .ico {
  width: 36px; height: 36px; border-radius: 10px; flex: 0 0 36px;
  background: var(--gold-dim); display: grid; place-items: center; font-size: 19px;
}
.section-head .t { font-weight: 700; font-size: 1.06rem; flex: 1; letter-spacing: .3px; }
.section-head .s { font-size: .78rem; color: var(--ink-3); font-weight: 400; margin-top: 1px; }

.section-body {
  background: var(--white); border-radius: var(--radius); padding: 18px;
  box-shadow: var(--shadow); border: 1px solid var(--line);
}

/* ============ Text blocks ============ */

.blk-p { margin-bottom: 14px; font-size: .95rem; color: var(--ink-2); text-align: justify; }
.blk-p:last-child { margin-bottom: 0; }
.blk-p b, .blk-list b, .blk-card b {
  color: var(--red); font-weight: 700;
  padding: 0 1px; border-bottom: 1.5px solid rgba(200,150,60,.4);
}
.blk-title {
  font-size: .88rem; font-weight: 700; color: var(--ink);
  margin: 18px 0 9px; display: flex; align-items: center; gap: 6px;
}
.blk-title::before {
  content: ''; width: 3px; height: 13px; border-radius: 2px;
  background: linear-gradient(var(--gold), var(--gold-light));
}

/* List */
.blk-list { list-style: none; }
.blk-list li {
  position: relative; padding-left: 22px; margin-bottom: 8px;
  font-size: .93rem; color: var(--ink-2);
}
.blk-list li::before {
  content: ''; position: absolute; left: 5px; top: 11px;
  width: 6px; height: 6px; border-radius: 50%;
}
.blk-list.good li::before { background: var(--wx-mu); box-shadow: 0 0 0 3px rgba(13,159,110,.13); }
.blk-list.warn li::before { background: var(--wx-huo); box-shadow: 0 0 0 3px rgba(229,62,62,.13); }

/* Quotation */
.blk-quote {
  background: linear-gradient(135deg, #fdf8ef, #faf1e0);
  border-left: 3px solid var(--gold); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 14px 16px; margin: 14px 0; position: relative;
}
.blk-quote .q {
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Songti SC", "STSong", serif;
  font-size: 1.02rem; color: var(--ink); line-height: 1.9; letter-spacing: .5px;
}
.blk-quote .src { font-size: .76rem; color: var(--ink-4); margin-top: 7px; text-align: right; }

/* Card group */
.blk-cards { display: grid; gap: 10px; }
@media (min-width: 420px) { .blk-cards { grid-template-columns: 1fr 1fr; } }
.blk-card {
  background: linear-gradient(135deg, #fffdf9, #faf5ec);
  border: 1px solid rgba(200,150,60,.16); border-radius: var(--radius-sm);
  padding: 13px 14px;
}
.blk-card .h { display: flex; align-items: center; gap: 7px; font-weight: 700; font-size: .9rem; margin-bottom: 5px; }
.blk-card .h .e { font-size: 1.05rem; }
.blk-card .d { font-size: .84rem; color: var(--ink-3); line-height: 1.65; }

/* KPI */
.blk-kpi { display: grid; grid-template-columns: repeat(2, 1fr); gap: 9px; margin-bottom: 16px; }
@media (min-width: 400px) { .blk-kpi { grid-template-columns: repeat(4, 1fr); } }
.blk-kpi .k {
  background: linear-gradient(160deg, #fffdf9, #f9f2e6);
  border: 1px solid rgba(200,150,60,.18); border-radius: var(--radius-sm);
  padding: 12px 8px; text-align: center;
}
.blk-kpi .k .lb { font-size: .72rem; color: var(--ink-4); margin-bottom: 4px; }
.blk-kpi .k .vl { font-size: 1.02rem; font-weight: 700; line-height: 1.25; word-break: break-all; }
.blk-kpi .k .sb { font-size: .7rem; color: var(--ink-4); margin-top: 3px; }

/* Table */
.blk-table { overflow-x: auto; margin: 14px 0; -webkit-overflow-scrolling: touch; }
.blk-table table { width: 100%; border-collapse: collapse; font-size: .84rem; min-width: 320px; }
.blk-table th {
  background: linear-gradient(135deg, #f7efe0, #f3e7d2);
  color: var(--ink); font-weight: 700; padding: 9px 8px;
  border: 1px solid rgba(200,150,60,.24); white-space: nowrap; font-size: .8rem;
}
.blk-table td {
  padding: 8px; border: 1px solid var(--line); text-align: center;
  color: var(--ink-2); white-space: nowrap;
}
.blk-table tr:nth-child(even) td { background: #fdfaf4; }

/* Bar chart */
.blk-bars { margin: 14px 0; }
.blk-bars .bar-row { margin-bottom: 11px; }
.blk-bars .bar-lb {
  display: flex; justify-content: space-between; font-size: .82rem; margin-bottom: 4px;
  color: var(--ink-2);
}
.blk-bars .bar-lb .tag {
  font-size: .68rem; padding: 1px 6px; border-radius: 4px; font-weight: 700;
}
.tag.xi { background: rgba(13,159,110,.13); color: var(--wx-mu); }
.tag.ji { background: rgba(229,62,62,.12); color: var(--wx-huo); }
.blk-bars .bar-track {
  height: 9px; background: #f0e9dd; border-radius: 999px; overflow: hidden;
}
.blk-bars .bar-fill { height: 100%; border-radius: 999px; transition: width .5s ease; }

/* AI deep-reading block */
.blk-ai {
  position: relative; margin-bottom: 14px; padding: 15px 16px 15px 17px;
  border-radius: var(--radius-sm);
  background: linear-gradient(150deg, #fdfaf3, #f9f2e4);
  border: 1px solid rgba(200,150,60,.26);
}
.blk-ai::before {
  content: ''; position: absolute; left: 0; top: 12px; bottom: 12px; width: 3px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--gold), var(--gold-light));
}
.blk-ai:last-child { margin-bottom: 0; }
.blk-ai .h {
  display: flex; align-items: center; gap: 6px; margin-bottom: 8px;
  font-size: .84rem; font-weight: 700; color: var(--gold);
}
.blk-ai .h .bd {
  font-size: .64rem; padding: 1px 7px; border-radius: 999px; font-weight: 700;
  background: linear-gradient(135deg, var(--gold-light), var(--gold)); color: #fff;
  letter-spacing: .5px;
}
.blk-ai .tx {
  font-size: .93rem; color: var(--ink-2); line-height: 1.9; text-align: justify;
}
.blk-ai .tx b { color: var(--red); font-weight: 700; }

/* AI in-progress banner */
.ai-pending {
  display: flex; align-items: center; gap: 9px; padding: 12px 15px;
  border-radius: var(--radius-sm); margin-bottom: 14px;
  background: linear-gradient(135deg, rgba(200,150,60,.1), rgba(200,150,60,.04));
  border: 1px solid rgba(200,150,60,.22); font-size: .84rem; color: var(--ink-3);
}
.ai-pending .spin-sm {
  width: 15px; height: 15px; flex: 0 0 15px; border-radius: 50%;
  border: 2px solid rgba(200,150,60,.22); border-top-color: var(--gold);
  animation: spin .8s linear infinite;
}
.ai-pending.done { background: linear-gradient(135deg, rgba(13,159,110,.09), rgba(13,159,110,.03)); border-color: rgba(13,159,110,.22); }

/* Hexagram */
.gua-box {
  display: flex; flex-direction: column; align-items: center;
  padding: 18px; border-radius: var(--radius); margin-bottom: 14px;
  background: linear-gradient(160deg, #fffdf8, #f7efe0);
  border: 1px solid rgba(200,150,60,.22);
}
.gua-name { font-family: "Songti SC", "STSong", serif; font-size: 1.3rem; font-weight: 700; letter-spacing: 3px; margin-bottom: 4px; }
.gua-lines { display: flex; flex-direction: column-reverse; gap: 5px; margin: 14px 0; }
.gua-lines .l { height: 9px; display: flex; gap: 7px; }
.gua-lines .l.yang { width: 104px; }
.gua-lines .l.yin { width: 104px; }
.gua-lines .l span { flex: 1; background: linear-gradient(90deg, var(--ink), #3a2f26); border-radius: 2px; }
.gua-lines .l.yin span:first-child { flex: 1; }
.gua-lines .l.yin span:last-child { flex: 1; }
.gua-lines .l .moving { background: linear-gradient(90deg, var(--red), var(--red-light)); }
.gua-meta { font-size: .82rem; color: var(--ink-3); }

/* ============ Paywall ============ */

.paywall {
  position: relative; margin: 4px -18px -18px; padding: 30px 20px calc(24px + var(--safe-b));
  background: linear-gradient(180deg, rgba(253,250,245,0) 0%, var(--white) 22%, var(--white) 100%);
  text-align: center;
}
.locked-item {
  position: relative; padding: 16px; border-radius: var(--radius-sm);
  background: #fbf8f2; border: 1px dashed rgba(200,150,60,.4); margin-bottom: 11px;
  filter: blur(4.5px); user-select: none; opacity: .55; min-height: 84px;
}
.locked-item .lock-tag {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 3px;
  filter: blur(0); color: var(--ink-4);
}
.locked-item .lock-tag .i { font-size: 1.3rem; }
.locked-item .lock-tag .t { font-size: .82rem; font-weight: 600; }

/* Purchase card */
.buy-card {
  background: linear-gradient(160deg, #fffdf8, #fbf3e4);
  border: 2px solid var(--gold); border-radius: var(--radius);
  padding: 22px 18px; margin: 16px 0;
  box-shadow: 0 8px 30px rgba(200,150,60,.2); position: relative; overflow: hidden;
}
.buy-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.buy-price { display: flex; align-items: baseline; justify-content: center; gap: 8px; margin: 12px 0 4px; }
.buy-price .now { font-size: 2.5rem; font-weight: 800; color: var(--red); line-height: 1; }
.buy-price .now .c { font-size: 1.3rem; font-weight: 700; }
.buy-price .old { font-size: .92rem; color: var(--ink-4); text-decoration: line-through; }
.buy-list { list-style: none; margin: 16px 0; text-align: left; }
.buy-list li {
  display: flex; align-items: flex-start; gap: 8px; padding: 6px 0;
  font-size: .89rem; color: var(--ink-2);
}
.buy-list li .ck { color: var(--wx-mu); font-weight: 700; flex: 0 0 auto; }

.pay-methods { display: flex; gap: 9px; margin: 14px 0; }
.pay-btn {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 7px;
  padding: 13px; border-radius: var(--radius-sm); font-weight: 700; font-size: .96rem;
  transition: transform .12s, box-shadow .2s;
}
.pay-btn:active { transform: scale(.97); }
.pay-btn.alipay { background: linear-gradient(135deg, #1677ff, #0a5fd4); color: #fff; box-shadow: 0 3px 14px rgba(22,119,255,.32); }
.pay-btn.wechat { background: linear-gradient(135deg, #07c160, #05a94e); color: #fff; box-shadow: 0 3px 14px rgba(7,193,96,.3); }
.pay-btn:disabled { opacity: .55; }

.pay-note { font-size: .78rem; color: var(--ink-4); text-align: center; line-height: 1.7; }
.pay-note a { color: var(--ink-3); text-decoration: underline; }
.pay-note b { color: var(--ink-3); }

/* Statutory withdrawal consent — required before starting a digital-content purchase */
.consent {
  display: flex; align-items: flex-start; gap: 9px; text-align: left;
  background: rgba(43,108,176,.06); border: 1px solid rgba(43,108,176,.16);
  border-radius: var(--radius-sm); padding: 11px 13px; margin: 14px 0 10px;
  font-size: .78rem; color: var(--ink-3); line-height: 1.65; cursor: pointer;
}
.consent input { width: 17px; height: 17px; flex: 0 0 auto; margin-top: 1px; accent-color: var(--gold); }

/* ============ Toast ============ */

.toast {
  position: fixed; left: 50%; bottom: calc(28px + var(--safe-b));
  transform: translateX(-50%) translateY(14px);
  background: rgba(31,26,22,.93); color: #fff; padding: 11px 20px;
  border-radius: 999px; font-size: .88rem; z-index: 200;
  opacity: 0; pointer-events: none; transition: all .28s;
  max-width: calc(100vw - 40px); text-align: center; backdrop-filter: blur(8px);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ============ Loading ============ */

.loading { text-align: center; padding: 60px 20px; }
.loading .spin {
  width: 40px; height: 40px; margin: 0 auto 16px;
  border: 3px solid var(--gold-dim); border-top-color: var(--gold);
  border-radius: 50%; animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading .txt { color: var(--ink-3); font-size: .92rem; }

/* ============ Footer ============ */

.footer {
  text-align: center; padding: 26px 20px calc(30px + var(--safe-b));
  font-size: .78rem; color: var(--ink-4); line-height: 1.9;
}
.footer .l { margin-bottom: 3px; }

/* ============ Utilities ============ */
.mb0 { margin-bottom: 0 !important; }
.mb8 { margin-bottom: 8px; }
.mb12 { margin-bottom: 12px; }
.mb16 { margin-bottom: 16px; }
.mt12 { margin-top: 12px; }
.tc { text-align: center; }
.muted { color: var(--ink-3); }
.tiny { font-size: .78rem; }
.hl { color: var(--red); font-weight: 700; }
.hl-gold { color: var(--gold); font-weight: 700; }

/* Safe area */
.pb-safe { padding-bottom: calc(20px + var(--safe-b)); }

/* ============ Narrow screens (≤360px) ============ */
@media (max-width: 360px) {
  html { font-size: 15px; }
  .wrap { padding: 0 12px; }
  .card { padding: 16px 14px; }
  .section-body { padding: 15px 13px; }
  .blk-cards { grid-template-columns: 1fr; }
  .blk-kpi { grid-template-columns: repeat(2, 1fr); }
  .blk-kpi .k .vl { font-size: .94rem; }
  .blk-table table { min-width: 280px; font-size: .78rem; }
  .blk-table th, .blk-table td { padding: 6px 5px; }
  .gua-lines .l.yang, .gua-lines .l.yin { width: 88px; }
  .buy-price .now { font-size: 2.1rem; }
}