/* ==========================================================================
   特殊工种提前退休资格与养老金测算器（/tool/special-early-retirement-calc）
   设计语言：牛皮纸档案袋 + 审批章 + 年龄刻度尺
   作用域：.er-page 内，变量 er- 前缀
   ========================================================================== */

.er-page {
    --er-bg: #f2ecdd;
    --er-card: #fffdf5;
    --er-ink: #22303a;
    --er-ink-2: #586461;
    --er-ink-3: #8b928c;
    --er-line: #dbd0b8;
    --er-line-2: #ece2cd;
    --er-kraft: #e7d9bb;
    --er-kraft-2: #dccaa6;
    --er-stamp: #ad3a2b;
    --er-stamp-soft: #f8e7e1;
    --er-teal: #2d6a62;
    --er-teal-soft: #e3efe9;
    --er-gold: #a9822f;
    --er-shadow: 0 22px 44px -34px rgba(34, 48, 58, .5);
    --er-mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace;
    --er-serif: "Songti SC", "Noto Serif SC", SimSun, Georgia, serif;

    background:
        repeating-linear-gradient(0deg, rgba(120, 96, 52, .035) 0 1px, transparent 1px 4px),
        radial-gradient(720px 320px at 4% 0%, rgba(169, 130, 47, .12), transparent 60%),
        var(--er-bg);
    color: var(--er-ink);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

:root[data-theme="dark"] .er-page {
    --er-bg: #14120d;
    --er-card: #1c1913;
    --er-ink: #eee7d7;
    --er-ink-2: #a9a294;
    --er-ink-3: #7d786e;
    --er-line: #332d22;
    --er-line-2: #26221a;
    --er-kraft: #2e281d;
    --er-kraft-2: #3b3325;
    --er-stamp: #e98d78;
    --er-stamp-soft: #33201b;
    --er-teal: #7cc0b3;
    --er-teal-soft: #1c2b27;
    --er-gold: #d8b166;
    --er-shadow: 0 26px 54px -40px rgba(0, 0, 0, .95);
    background:
        repeating-linear-gradient(0deg, rgba(255, 255, 255, .018) 0 1px, transparent 1px 4px),
        radial-gradient(720px 320px at 4% 0%, rgba(216, 177, 102, .07), transparent 60%),
        var(--er-bg);
}

.er-page *,
.er-page *::before,
.er-page *::after { box-sizing: border-box; }

.er-wrap { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.er-page a { color: inherit; text-decoration: none; }

/* ---------- 首屏 ---------- */
.er-hero { position: relative; padding: 26px 0 46px; }

.er-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.er-crumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--er-ink-3); }
.er-crumb a { color: var(--er-ink-2); border-bottom: 1px solid transparent; }
.er-crumb a:hover { color: var(--er-teal); border-bottom-color: currentColor; }
.er-crumb i { font-style: normal; opacity: .5; }
.er-crumb b { color: var(--er-ink); font-weight: 600; }

.er-modes {
    display: inline-flex;
    padding: 3px;
    border: 1px solid var(--er-line);
    border-radius: 999px;
    background: var(--er-card);
}

.er-modes button {
    border: 0;
    background: transparent;
    color: var(--er-ink-2);
    font: inherit;
    font-size: 12.5px;
    padding: 7px 12px;
    border-radius: 999px;
    cursor: pointer;
    white-space: nowrap;
    transition: all .18s ease;
}

.er-modes button.is-on { background: var(--er-teal); color: #fff; font-weight: 600; }

.er-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: 44px;
    align-items: start;
}

.er-kicker {
    margin: 0 0 14px;
    font-size: 11.5px;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--er-stamp);
    font-weight: 700;
}

.er-intro h1 {
    margin: 0 0 16px;
    font-family: var(--er-serif);
    font-size: clamp(30px, 3.5vw, 46px);
    line-height: 1.26;
    letter-spacing: -.01em;
    font-weight: 700;
    color: var(--er-ink);
}

.er-intro h1 em {
    font-style: normal;
    color: var(--er-teal);
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 6px;
    text-decoration-color: var(--er-kraft-2);
}

.er-lede {
    margin: 0 0 20px;
    max-width: 33em;
    font-size: 15.5px;
    line-height: 1.95;
    color: var(--er-ink-2);
}

.er-lede strong { color: var(--er-ink); font-weight: 600; }

.er-chips { list-style: none; margin: 0 0 20px; padding: 0; display: grid; gap: 9px; }

.er-chips li { display: flex; gap: 10px; align-items: baseline; font-size: 13.5px; color: var(--er-ink-2); }

.er-chips b {
    flex: none;
    min-width: 72px;
    padding: 1px 8px;
    border: 1px solid var(--er-line);
    border-radius: 3px;
    background: var(--er-card);
    color: var(--er-teal);
    font-family: var(--er-mono);
    font-size: 11.5px;
    text-align: center;
    font-weight: 700;
}

.er-presets { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.er-presets > span { font-size: 12.5px; color: var(--er-ink-3); }

.er-presets button {
    font: inherit;
    font-size: 12.5px;
    padding: 7px 12px;
    border-radius: 3px;
    border: 1px solid var(--er-line);
    background: transparent;
    color: var(--er-ink-2);
    cursor: pointer;
    transition: all .16s ease;
}

.er-presets button:hover,
.er-presets button.is-on { border-color: var(--er-teal); background: var(--er-teal-soft); color: var(--er-teal); }

/* ---------- 档案袋 ---------- */
.er-folder {
    position: relative;
    margin-top: 18px;
    border: 1px solid var(--er-kraft-2);
    border-radius: 4px 14px 14px 14px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, .35), transparent 26%),
        var(--er-card);
    box-shadow: var(--er-shadow);
    padding: 26px 24px 22px;
}

.er-folder::before {
    content: "";
    position: absolute;
    left: -1px;
    top: -22px;
    width: 168px;
    height: 24px;
    border: 1px solid var(--er-kraft-2);
    border-bottom: 0;
    border-radius: 10px 10px 0 0;
    background: var(--er-kraft);
}

.er-folder-label {
    position: absolute;
    left: 16px;
    top: -18px;
    z-index: 1;
    font-family: var(--er-mono);
    font-size: 10.5px;
    letter-spacing: .16em;
    color: #4c4028;
    font-weight: 700;
}

:root[data-theme="dark"] .er-folder-label { color: #d9c79c; }

.er-folder-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--er-line);
}

.er-folder-head h2 { margin: 0; font-size: 14px; letter-spacing: .06em; font-weight: 700; }
.er-folder-head span { display: block; margin-top: 2px; font-size: 11.5px; color: var(--er-ink-3); font-family: var(--er-mono); }

.er-stamp {
    flex: none;
    display: inline-grid;
    place-items: center;
    min-width: 82px;
    padding: 5px 10px;
    border: 2px solid var(--er-stamp);
    border-radius: 4px;
    color: var(--er-stamp);
    font-family: var(--er-serif);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .08em;
    transform: rotate(-6deg);
    opacity: .92;
}

.er-stamp.is-pass { border-color: var(--er-teal); color: var(--er-teal); }

.er-form { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 14px; }

.er-field { display: grid; gap: 4px; min-width: 0; }
.er-field.is-wide { grid-column: 1 / -1; }

.er-field > span {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    font-size: 11.5px;
    color: var(--er-ink-2);
}

.er-field > span i { font-style: normal; color: var(--er-stamp); font-family: var(--er-mono); }

.er-field .er-input {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0 9px;
    border: 1px solid var(--er-line);
    border-radius: 4px;
    background: var(--er-bg);
    transition: border-color .16s ease, box-shadow .16s ease;
}

.er-field .er-input:focus-within { border-color: var(--er-teal); box-shadow: 0 0 0 3px var(--er-teal-soft); }

.er-field input,
.er-field select {
    width: 100%;
    min-width: 0;
    border: 0;
    outline: none;
    background: transparent;
    color: var(--er-ink);
    font: inherit;
    font-family: var(--er-mono);
    font-size: 13.5px;
    padding: 8px 0;
    font-variant-numeric: tabular-nums;
}

.er-field select { font-family: inherit; font-size: 13px; }
.er-field .er-unit { flex: none; font-size: 11px; color: var(--er-ink-3); }

.er-folder-result {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px dashed var(--er-line);
}

.er-folder-result div span { display: block; font-size: 11px; color: var(--er-ink-3); }
.er-folder-result div b {
    display: block;
    margin-top: 1px;
    font-family: var(--er-mono);
    font-size: 15px;
    color: var(--er-ink);
    font-variant-numeric: tabular-nums;
}

/* ---------- 正文 ---------- */
.er-body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 32px;
    padding: 18px 0 26px;
    align-items: start;
}

.er-main { display: grid; gap: 22px; min-width: 0; }
.er-main > *, .er-split > * { min-width: 0; }

.er-card {
    background: var(--er-card);
    border: 1px solid var(--er-line);
    border-radius: 6px;
    padding: 26px;
    box-shadow: var(--er-shadow);
    position: relative;
}

.er-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 22px;
    bottom: 22px;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background: linear-gradient(180deg, var(--er-teal), transparent);
    opacity: .5;
}

.er-card-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }

.er-card-head h2 { margin: 0; font-size: 18px; font-weight: 700; }

.er-card-head h2 i {
    display: inline-block;
    margin-right: 8px;
    padding: 1px 6px;
    border: 1px solid var(--er-line);
    border-radius: 3px;
    background: var(--er-bg);
    color: var(--er-teal);
    font-style: normal;
    font-family: var(--er-mono);
    font-size: 11px;
    font-weight: 700;
    vertical-align: 2px;
}

.er-card-head p { flex: 1 1 100%; margin: 6px 0 0; font-size: 13px; color: var(--er-ink-3); }

.er-split { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 24px; margin-top: 16px; }

/* 条件核验清单 */
.er-check { display: grid; gap: 0; }

.er-check-row {
    display: grid;
    grid-template-columns: 96px minmax(0, 1fr) 92px;
    gap: 12px;
    align-items: center;
    padding: 11px 0;
    border-bottom: 1px dashed var(--er-line-2);
    font-size: 13px;
}

.er-check-row:last-child { border-bottom: 0; }
.er-check-row > span { color: var(--er-ink-2); }

.er-check-row b {
    font-family: var(--er-mono);
    font-weight: 600;
    font-size: 12.5px;
    color: var(--er-ink);
}

.er-seal {
    justify-self: end;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 2px 8px;
    border: 1px solid currentColor;
    border-radius: 999px;
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: .04em;
}

.er-seal.is-pass { color: var(--er-teal); background: var(--er-teal-soft); }
.er-seal.is-fail { color: var(--er-stamp); background: var(--er-stamp-soft); }
.er-seal.is-warn { color: var(--er-gold); background: transparent; }

.er-verdict {
    margin-top: 14px;
    padding: 13px 15px;
    border: 1px dashed var(--er-line);
    border-left: 3px solid var(--er-teal);
    border-radius: 4px;
    background: var(--er-bg);
    font-size: 13px;
    color: var(--er-ink-2);
}

.er-verdict b { color: var(--er-ink); }
.er-verdict.is-fail { border-left-color: var(--er-stamp); }

/* 年龄刻度 */
.er-ruler { margin-top: 20px; }

.er-ruler-scale {
    position: relative;
    height: 30px;
    border-bottom: 1px solid var(--er-line);
    font-family: var(--er-mono);
    font-size: 10.5px;
    color: var(--er-ink-3);
}

.er-ruler-tick { position: absolute; bottom: 0; transform: translateX(-50%); text-align: center; }
.er-ruler-tick::after {
    content: "";
    display: block;
    width: 1px;
    height: 7px;
    margin: 3px auto 0;
    background: var(--er-line);
}

.er-track { margin-top: 16px; display: grid; gap: 14px; }

.er-track-row { display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 12px; align-items: center; }

.er-track-label { font-size: 12.5px; color: var(--er-ink-2); }
.er-track-label b { display: block; font-family: var(--er-mono); font-size: 13px; color: var(--er-ink); }

.er-track-body { position: relative; height: 26px; border-radius: 4px; background: var(--er-line-2); overflow: hidden; }

.er-bar-work {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    background: repeating-linear-gradient(135deg, var(--er-kraft-2) 0 5px, transparent 5px 10px), var(--er-kraft);
    border-right: 2px solid var(--er-kraft-2);
}

.er-bar-pension { position: absolute; top: 0; bottom: 0; background: var(--er-teal); opacity: .28; }

.er-track-body .er-track-tag {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    padding: 1px 6px;
    border-radius: 3px;
    background: var(--er-card);
    border: 1px solid var(--er-line);
    font-family: var(--er-mono);
    font-size: 10.5px;
    white-space: nowrap;
    z-index: 2;
}

.er-track-note { margin-top: 2px; font-size: 11.5px; color: var(--er-ink-3); }

.er-empty { font-size: 13px; color: var(--er-ink-3); padding: 8px 0; }

/* 养老金结果 */
.er-pay-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }

.er-pay {
    border: 1px solid var(--er-line);
    border-radius: 5px;
    background: var(--er-bg);
    padding: 12px 13px;
}

.er-pay > span { display: block; font-size: 11px; color: var(--er-ink-3); }
.er-pay > b {
    display: block;
    margin-top: 2px;
    font-family: var(--er-mono);
    font-size: 19px;
    font-variant-numeric: tabular-nums;
}

.er-pay > b span { display: inline; font: inherit; color: inherit; }

.er-pay.is-early > b { color: var(--er-gold); }
.er-pay.is-normal > b { color: var(--er-teal); }

.er-gap-note {
    margin-top: 12px;
    padding: 12px 14px;
    border-left: 3px solid var(--er-stamp);
    background: var(--er-stamp-soft);
    border-radius: 0 4px 4px 0;
    font-size: 13px;
    color: var(--er-ink-2);
}

.er-gap-note b { font-family: var(--er-mono); color: var(--er-stamp); font-size: 15px; }

/* 年限对照表 */
.er-table-wrap { margin-top: 16px; border: 1px solid var(--er-line); border-radius: 5px; overflow-x: auto; max-width: 100%; }

.er-table { width: 100%; min-width: 460px; border-collapse: collapse; font-size: 13px; }

.er-table th,
.er-table td {
    padding: 9px 12px;
    text-align: right;
    border-bottom: 1px solid var(--er-line-2);
    white-space: nowrap;
}

.er-table th { background: var(--er-bg); color: var(--er-ink-2); font-weight: 600; font-size: 12.5px; }
.er-table th:first-child, .er-table td:first-child { text-align: left; }
.er-table td { font-family: var(--er-mono); font-variant-numeric: tabular-nums; }
.er-table tbody tr:last-child td { border-bottom: 0; }
.er-table tr.is-on { background: var(--er-teal-soft); }
.er-table tr.is-on td { color: var(--er-teal); font-weight: 700; }

/* 材料清单 */
.er-materials { display: grid; gap: 0; margin-top: 10px; }

.er-material {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px dashed var(--er-line-2);
    font-size: 13px;
    color: var(--er-ink-2);
    cursor: pointer;
}

.er-material:last-child { border-bottom: 0; }

.er-material input {
    appearance: none;
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    margin: 3px 0 0;
    flex: none;
    border: 1px solid var(--er-line);
    border-radius: 3px;
    background: var(--er-card);
    cursor: pointer;
    position: relative;
}

.er-material input:checked { background: var(--er-teal); border-color: var(--er-teal); }

.er-material input:checked::after {
    content: "";
    position: absolute;
    left: 4px;
    top: 1px;
    width: 5px;
    height: 9px;
    border-right: 2px solid #fff;
    border-bottom: 2px solid #fff;
    transform: rotate(40deg);
}

.er-material.is-done span { color: var(--er-ink-3); text-decoration: line-through; }
.er-material span b { display: block; font-size: 13px; color: var(--er-ink); font-weight: 600; }
.er-material span em { font-style: normal; display: block; font-size: 11.5px; color: var(--er-ink-3); }

.er-progress {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px dashed var(--er-line);
    font-size: 12.5px;
    color: var(--er-ink-2);
}

.er-progress-track { flex: 1; height: 8px; border-radius: 999px; background: var(--er-line-2); overflow: hidden; }
.er-progress-fill { height: 100%; width: 0; background: var(--er-teal); border-radius: 999px; transition: width .3s ease; }
.er-progress b { font-family: var(--er-mono); color: var(--er-teal); }

/* 说明与 FAQ */
.er-notes { display: grid; gap: 10px; margin-top: 16px; }

.er-note {
    padding: 12px 14px;
    border-left: 3px solid var(--er-gold);
    border-radius: 0 4px 4px 0;
    background: var(--er-bg);
    font-size: 13px;
    color: var(--er-ink-2);
}

.er-note b { color: var(--er-ink); }

.er-formula {
    margin-top: 14px;
    padding: 14px 16px;
    border: 1px dashed var(--er-line);
    border-radius: 5px;
    background: var(--er-bg);
    font-family: var(--er-mono);
    font-size: 12.5px;
    line-height: 2;
    color: var(--er-ink-2);
    overflow-x: auto;
}

.er-formula span { color: var(--er-teal); }

.er-faq { margin-top: 6px; }
.er-faq details { border-bottom: 1px solid var(--er-line-2); }
.er-faq details:last-child { border-bottom: 0; }

.er-faq summary {
    position: relative;
    list-style: none;
    cursor: pointer;
    padding: 12px 32px 12px 0;
    font-size: 14.5px;
    font-weight: 600;
}

.er-faq summary::-webkit-details-marker { display: none; }

.er-faq summary::after {
    content: "+";
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--er-mono);
    font-size: 18px;
    color: var(--er-teal);
    transition: transform .2s ease;
}

.er-faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }

.er-faq p { margin: 0; padding: 0 8px 14px 0; font-size: 13.5px; line-height: 1.95; color: var(--er-ink-2); }

/* 侧栏 */
.er-rail { position: sticky; top: 24px; display: grid; gap: 16px; }

.er-rail-card {
    border: 1px solid var(--er-line);
    border-radius: 5px;
    background: var(--er-card);
    padding: 18px;
    box-shadow: var(--er-shadow);
}

.er-rail-card h3 {
    margin: 0 0 10px;
    font-size: 11.5px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--er-ink-3);
    font-weight: 700;
}

.er-rail-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.er-rail-list li { display: flex; justify-content: space-between; gap: 10px; font-size: 12.5px; color: var(--er-ink-2); }
.er-rail-list b { font-family: var(--er-mono); color: var(--er-ink); }
.er-rail-list b span { display: inline; font: inherit; color: inherit; }

.er-links { display: grid; gap: 8px; }

.er-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 9px 11px;
    border: 1px solid var(--er-line);
    border-radius: 4px;
    font-size: 13px;
    color: var(--er-ink-2);
    transition: all .16s ease;
}

.er-links a:hover { border-color: var(--er-teal); color: var(--er-teal); background: var(--er-teal-soft); }
.er-links a::after { content: "→"; font-family: var(--er-mono); opacity: .5; }

.er-rail-note { margin: 0; font-size: 12px; line-height: 1.85; color: var(--er-ink-3); }

/* 响应式 */
@media (max-width: 1020px) {
    .er-hero-grid { grid-template-columns: minmax(0, 1fr); gap: 30px; }
    .er-body { grid-template-columns: minmax(0, 1fr); }
    .er-rail { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .er-split { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 700px) {
    .er-wrap { width: calc(100% - 28px); }
    .er-hero { padding-top: 18px; padding-bottom: 34px; }
    .er-top { margin-bottom: 22px; }
    .er-intro h1 { font-size: 30px; }
    .er-lede { font-size: 14.5px; }
    .er-folder { padding: 22px 16px 18px; margin-top: 26px; }
    .er-form { grid-template-columns: minmax(0, 1fr); }
    .er-body { padding-top: 10px; gap: 24px; }
    .er-card { padding: 20px 16px; }
    .er-check-row { grid-template-columns: 80px minmax(0, 1fr) auto; gap: 8px; font-size: 12.5px; }
    .er-seal { font-size: 10.5px; padding: 2px 6px; }
    .er-track-row { grid-template-columns: 76px minmax(0, 1fr); }
    .er-pay-grid { grid-template-columns: 1fr 1fr; }
    .er-rail { grid-template-columns: minmax(0, 1fr); }
    .er-modes button { padding: 6px 10px; }
    .er-folder-result { grid-template-columns: 1fr 1fr; }
}