/* ============================================================
   忆书平台 · 统一视觉规范
   方向：纸质怀旧 —— 米白纸底、墨褐文字、陈金与砖红点缀
   适配：客户端面向 40-50 岁子女，正文 16px 起、行高 1.75
   ============================================================ */

:root {
    --paper:      #F6F1E7;
    --paper-2:    #FFFDF8;
    --paper-3:    #EDE5D6;
    --ink:        #2E2721;
    --ink-2:      #5A4E42;
    --ink-3:      #8C7F70;
    --line:       #DCD2C0;
    --gold:       #B8892F;
    --gold-soft:  #E8D5A8;
    --brick:      #A8442F;
    --green:      #4E7A52;
    --shadow:     0 2px 10px rgba(70, 55, 35, .08);
    --radius:     10px;
    --serif:      "Songti SC", "SimSun", "Noto Serif SC", Georgia, serif;
    --sans:       -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.75;
    color: var(--ink);
    background: var(--paper);
    background-image:
        radial-gradient(circle at 12% 18%, rgba(184, 137, 47, .05) 0, transparent 42%),
        radial-gradient(circle at 88% 78%, rgba(168, 68, 47, .04) 0, transparent 40%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
}

/* ---------------------------------------------------- 布局 */
.wrap      { max-width: 1080px; margin: 0 auto; padding: 0 20px 72px; }
.wrap-wide { max-width: 1440px; margin: 0 auto; padding: 0 20px 72px; }

.topbar {
    position: sticky; top: 0; z-index: 40;
    background: rgba(246, 241, 231, .94);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
}
.topbar-in {
    max-width: 1440px; margin: 0 auto; padding: 12px 20px;
    display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.brand {
    font-family: var(--serif); font-size: 21px; font-weight: 700;
    letter-spacing: 2px; color: var(--ink); text-decoration: none;
    display: flex; align-items: center; gap: 9px;
}
.brand .seal {
    width: 28px; height: 28px; border-radius: 6px; flex: 0 0 28px;
    background: var(--brick); color: #fff; display: grid; place-items: center;
    font-size: 14px; font-family: var(--serif);
}
.brand small { font-family: var(--sans); font-size: 11px; color: var(--ink-3); letter-spacing: 0; font-weight: 400; }
.nav { margin-left: auto; display: flex; gap: 6px; flex-wrap: wrap; }
.nav a {
    font-size: 14px; color: var(--ink-2); text-decoration: none;
    padding: 6px 13px; border-radius: 999px; border: 1px solid transparent;
}
.nav a:hover   { background: var(--paper-3); }
.nav a.active  { background: var(--ink); color: var(--paper-2); }

/* ---------------------------------------------------- 标题 */
h1.title {
    font-family: var(--serif); font-size: 30px; line-height: 1.35;
    margin: 34px 0 6px; letter-spacing: 1px;
}
.subtitle { color: var(--ink-3); font-size: 14px; margin: 0 0 26px; }

h2.sec {
    font-family: var(--serif); font-size: 20px; margin: 34px 0 14px;
    padding-left: 12px; border-left: 4px solid var(--gold); letter-spacing: .5px;
}
h3.sub { font-size: 15px; margin: 20px 0 10px; color: var(--ink-2); }

/* ---------------------------------------------------- 卡片 */
.card {
    background: var(--paper-2); border: 1px solid var(--line);
    border-radius: var(--radius); padding: 20px 22px;
    box-shadow: var(--shadow); margin-bottom: 16px;
}
.card.tight { padding: 14px 16px; }
.grid     { display: grid; gap: 14px; }
.grid-2   { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3   { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.grid-4   { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }

/* ---------------------------------------------------- 指标块 */
.stat { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 15px 17px; }
.stat .n { font-family: var(--serif); font-size: 27px; line-height: 1.2; color: var(--ink); }
.stat .k { font-size: 12px; color: var(--ink-3); margin-top: 3px; letter-spacing: .5px; }
.stat.gold  .n { color: var(--gold); }
.stat.brick .n { color: var(--brick); }
.stat.green .n { color: var(--green); }

/* ---------------------------------------------------- 表单 */
label.field { display: block; margin-bottom: 15px; }
label.field > span { display: block; font-size: 13px; color: var(--ink-2); margin-bottom: 6px; font-weight: 600; }
label.field > span .req { color: var(--brick); }
label.field .hint { font-size: 12px; color: var(--ink-3); margin-top: 5px; font-weight: 400; line-height: 1.6; }

input[type=text], input[type=number], input[type=tel], input[type=password],
select, textarea {
    width: 100%; padding: 11px 13px; font-size: 15px; font-family: inherit;
    color: var(--ink); background: var(--paper-2);
    border: 1px solid var(--line); border-radius: 8px; outline: none;
    transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
    border-color: var(--gold); box-shadow: 0 0 0 3px rgba(184, 137, 47, .13);
}
textarea { min-height: 120px; resize: vertical; line-height: 1.7; }
textarea.mono { font-family: "Cascadia Mono", Consolas, monospace; font-size: 14px; }

.btn {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 11px 22px; font-size: 15px; font-family: inherit; font-weight: 600;
    color: var(--paper-2); background: var(--ink);
    border: 1px solid var(--ink); border-radius: 8px; cursor: pointer;
    transition: opacity .15s, transform .05s;
}
.btn:hover   { opacity: .88; }
.btn:active  { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.gold  { background: var(--gold); border-color: var(--gold); }
.btn.brick { background: var(--brick); border-color: var(--brick); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.ghost:hover { background: var(--paper-3); }
.btn.sm { padding: 6px 13px; font-size: 13px; }

.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.row.end { justify-content: flex-end; }

/* ---------------------------------------------------- 标签 */
.tag {
    display: inline-block; padding: 2px 10px; font-size: 12px; line-height: 1.7;
    border-radius: 999px; border: 1px solid var(--line); color: var(--ink-2);
    background: var(--paper); white-space: nowrap;
}
.tag.gold  { border-color: var(--gold-soft); background: #FBF4E3; color: #8A6520; }
.tag.brick { border-color: #E5BDB2; background: #FBEDE9; color: var(--brick); }
.tag.green { border-color: #C2D6C3; background: #EFF5EF; color: var(--green); }
.tag.ink   { background: var(--ink); color: var(--paper-2); border-color: var(--ink); }

/* ---------------------------------------------------- 状态机条 */
.steps { display: flex; gap: 4px; margin: 14px 0 4px; flex-wrap: wrap; }
.steps .st {
    flex: 1 1 120px; min-width: 108px; padding: 9px 11px; font-size: 12.5px;
    background: var(--paper-3); color: var(--ink-3); border-radius: 6px;
    border-top: 3px solid transparent; text-align: center;
}
.steps .st.done { background: #EFF5EF; color: var(--green); border-top-color: var(--green); font-weight: 600; }
.steps .st.now  { background: #FBF4E3; color: #8A6520; border-top-color: var(--gold); font-weight: 600; }

/* ---------------------------------------------------- 提示条 */
.alert {
    padding: 13px 16px; border-radius: 8px; font-size: 14px; line-height: 1.7;
    margin-bottom: 14px; border-left: 4px solid;
}
.alert.warn  { background: #FDF6E7; border-color: var(--gold); color: #6E5217; }
.alert.err   { background: #FBEDE9; border-color: var(--brick); color: #7E3022; }
.alert.ok    { background: #EFF5EF; border-color: var(--green); color: #35573A; }
.alert.info  { background: var(--paper-3); border-color: var(--ink-3); color: var(--ink-2); }
.alert b { display: block; margin-bottom: 3px; }

/* ---------------------------------------------------- 表格 */
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
table.tbl th, table.tbl td { padding: 9px 11px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
table.tbl th { font-size: 12px; color: var(--ink-3); font-weight: 600; letter-spacing: .4px; background: var(--paper); }
table.tbl tbody tr:hover { background: rgba(184, 137, 47, .045); }
table.tbl td.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------- 列表项 */
.item {
    padding: 13px 15px; border: 1px solid var(--line); border-radius: 8px;
    background: var(--paper-2); margin-bottom: 9px; cursor: pointer;
    transition: border-color .15s, box-shadow .15s;
}
.item:hover { border-color: var(--gold); box-shadow: var(--shadow); }
.item.sel   { border-color: var(--gold); background: #FDFAF2; }
.item .t { font-weight: 600; font-size: 15px; }
.item .m { font-size: 12.5px; color: var(--ink-3); margin-top: 3px; }

/* ---------------------------------------------------- 空态 */
.empty { text-align: center; padding: 46px 20px; color: var(--ink-3); font-size: 14px; }
.empty .big { font-family: var(--serif); font-size: 22px; color: var(--ink-2); margin-bottom: 8px; letter-spacing: 1px; }

/* ---------------------------------------------------- 精校台 */
.proof-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 900px) { .proof-grid { grid-template-columns: 1fr; } }
.pane-head {
    display: flex; align-items: center; gap: 10px; padding: 9px 13px;
    background: var(--paper); border: 1px solid var(--line); border-bottom: none;
    border-radius: 8px 8px 0 0; font-size: 13px; font-weight: 600; color: var(--ink-2);
}
.pane-head .r { margin-left: auto; font-weight: 400; color: var(--ink-3); font-size: 12px; }
.pane-body { border: 1px solid var(--line); border-radius: 0 0 8px 8px; background: var(--paper-2); padding: 12px; }
.raw-text {
    font-size: 14.5px; line-height: 1.85; max-height: 460px; overflow: auto;
    white-space: pre-wrap; word-break: break-word; color: var(--ink-2);
}
.raw-text .spk { color: var(--gold); font-weight: 600; }

/* ---------------------------------------------------- 记录条 */
.log { font-family: "Cascadia Mono", Consolas, monospace; font-size: 12.5px; line-height: 1.85; max-height: 340px; overflow: auto; color: var(--ink-2); }
.log .err { color: var(--brick); }
.log .ok  { color: var(--green); }
.log .dim { color: var(--ink-3); }

/* ---------------------------------------------------- 加载 */
.loading { padding: 34px; text-align: center; color: var(--ink-3); font-size: 14px; }
.spin {
    display: inline-block; width: 15px; height: 15px; margin-right: 7px;
    border: 2px solid var(--line); border-top-color: var(--gold);
    border-radius: 50%; animation: spin .7s linear infinite; vertical-align: -2px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.foot { margin-top: 46px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 12px; color: var(--ink-3); text-align: center; line-height: 1.9; }
.hide { display: none !important; }
.mt0 { margin-top: 0; } .mb0 { margin-bottom: 0; }
.tc  { text-align: center; } .tr { text-align: right; }
.dim { color: var(--ink-3); }
.small { font-size: 12.5px; }
.serif { font-family: var(--serif); }