/* ==========================================================================
   快递派件收入与罚款风险计算器（/tool/courier-income-penalty）
   设计语言：电子面单 + 扫描光 + 收支对账小票
   作用域：.dx-page 内，变量 dx- 前缀
   ========================================================================== */

.dx-page {
    --dx-bg: #edf1f4;
    --dx-card: #ffffff;
    --dx-ink: #15232e;
    --dx-ink-2: #556470;
    --dx-ink-3: #8794a0;
    --dx-line: #dbe3e9;
    --dx-line-2: #eaf0f3;
    --dx-navy: #12283c;
    --dx-navy-2: #1b3a54;
    --dx-orange: #dd6520;
    --dx-orange-2: #f08b4a;
    --dx-orange-soft: #fdeee2;
    --dx-green: #1d8763;
    --dx-green-soft: #e6f4ee;
    --dx-red: #bd4630;
    --dx-red-soft: #fbeae5;
    --dx-shadow: 0 22px 46px -36px rgba(21, 35, 46, .5);
    --dx-mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace;
    --dx-cond: "DIN Alternate", "Bahnschrift", "Arial Narrow", -apple-system, sans-serif;

    background:
        radial-gradient(660px 300px at 96% 0%, rgba(221, 101, 32, .07), transparent 62%),
        linear-gradient(180deg, rgba(18, 40, 60, .04), transparent 300px),
        var(--dx-bg);
    color: var(--dx-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"] .dx-page {
    --dx-bg: #0c1218;
    --dx-card: #131c24;
    --dx-ink: #e9eff3;
    --dx-ink-2: #a2aeb8;
    --dx-ink-3: #74828d;
    --dx-line: #24313b;
    --dx-line-2: #1a252e;
    --dx-orange: #f08b4a;
    --dx-orange-2: #ffab73;
    --dx-orange-soft: #2d1d12;
    --dx-green: #63c4a2;
    --dx-green-soft: #142720;
    --dx-red: #ef8a70;
    --dx-red-soft: #2e1c18;
    --dx-shadow: 0 26px 54px -40px rgba(0, 0, 0, .95);
    background:
        radial-gradient(660px 300px at 96% 0%, rgba(240, 139, 74, .07), transparent 62%),
        linear-gradient(180deg, rgba(255, 255, 255, .02), transparent 300px),
        var(--dx-bg);
}

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

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

/* ---------- 首屏 ---------- */
.dx-hero {
    position: relative;
    overflow: hidden;
    padding: 26px 0 52px;
    color: #f2f6f8;
    background:
        radial-gradient(700px 360px at 90% -6%, rgba(221, 101, 32, .28), transparent 62%),
        radial-gradient(520px 300px at 6% 10%, rgba(44, 104, 150, .4), transparent 66%),
        linear-gradient(152deg, #0e2130 0%, #16344a 56%, #0d1f2e 100%);
}

.dx-hero::before {
    content: "";
    position: absolute;
    left: -20%;
    top: 0;
    width: 60%;
    height: 100%;
    background: linear-gradient(100deg, transparent 30%, rgba(240, 139, 74, .14) 50%, transparent 68%);
    transform: translateX(-30%);
    pointer-events: none;
}

.dx-hero > .dx-wrap { position: relative; z-index: 1; }

.dx-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.dx-crumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(242, 246, 248, .55); }
.dx-crumb a { color: rgba(242, 246, 248, .8); border-bottom: 1px solid transparent; }
.dx-crumb a:hover { color: var(--dx-orange-2); border-bottom-color: currentColor; }
.dx-crumb i { font-style: normal; opacity: .45; }
.dx-crumb b { color: #fff; font-weight: 600; }

.dx-modes {
    display: inline-flex;
    padding: 3px;
    border: 1px solid rgba(242, 246, 248, .18);
    border-radius: 999px;
    background: rgba(255, 255, 255, .05);
}

.dx-modes button {
    border: 0;
    background: transparent;
    color: rgba(242, 246, 248, .72);
    font: inherit;
    font-size: 12.5px;
    padding: 7px 12px;
    border-radius: 999px;
    cursor: pointer;
    white-space: nowrap;
    transition: all .18s ease;
}

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

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

.dx-kicker {
    margin: 0 0 15px;
    font-size: 11.5px;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--dx-orange-2);
    font-weight: 700;
}

.dx-intro h1 {
    margin: 0 0 16px;
    font-family: var(--dx-cond);
    font-size: clamp(32px, 3.8vw, 50px);
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -.01em;
    color: #fff;
}

.dx-intro h1 em { font-style: normal; color: var(--dx-orange-2); }

.dx-lede {
    margin: 0 0 20px;
    max-width: 32em;
    font-size: 15.5px;
    line-height: 1.95;
    color: rgba(242, 246, 248, .7);
}

.dx-lede strong { color: #fff; font-weight: 600; }

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

.dx-chips li { display: flex; gap: 10px; align-items: baseline; font-size: 13.5px; color: rgba(242, 246, 248, .68); }

.dx-chips b {
    flex: none;
    min-width: 64px;
    padding: 1px 8px;
    border: 1px solid rgba(240, 139, 74, .45);
    border-radius: 3px;
    color: var(--dx-orange-2);
    font-family: var(--dx-mono);
    font-size: 11px;
    text-align: center;
    font-weight: 600;
}

.dx-presets { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.dx-presets > span { font-size: 12.5px; color: rgba(242, 246, 248, .5); }

.dx-presets button {
    font: inherit;
    font-size: 12.5px;
    padding: 7px 12px;
    border-radius: 4px;
    border: 1px solid rgba(242, 246, 248, .22);
    background: transparent;
    color: rgba(242, 246, 248, .82);
    cursor: pointer;
    transition: all .16s ease;
}

.dx-presets button:hover,
.dx-presets button.is-on { border-color: var(--dx-orange-2); background: rgba(240, 139, 74, .14); color: #fff; }

/* ---------- 面单卡 ---------- */
.dx-waybill {
    position: relative;
    border-radius: 10px;
    background: #fffdf8;
    color: #1b2630;
    box-shadow: 0 30px 60px -40px rgba(0, 0, 0, .85);
    padding: 18px 20px 20px;
}

.dx-waybill::before,
.dx-waybill::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    height: 7px;
    background-image: radial-gradient(circle at 5px 0, transparent 4px, #fffdf8 4px);
    background-size: 10px 7px;
    background-repeat: repeat-x;
}

.dx-waybill::before { top: -7px; transform: rotate(180deg); }
.dx-waybill::after { bottom: -7px; }

.dx-wb-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding-bottom: 10px;
    border-bottom: 1px dashed #d6d9d4;
}

.dx-wb-brand { font-size: 12px; letter-spacing: .18em; font-weight: 700; color: #1b2630; }
.dx-wb-brand span { display: block; margin-top: 2px; font-family: var(--dx-mono); font-size: 10px; letter-spacing: .06em; color: #7d8580; font-weight: 400; }

.dx-barcode {
    width: 132px;
    height: 34px;
    background-image: repeating-linear-gradient(90deg,
        #1b2630 0 1px, transparent 1px 3px,
        #1b2630 3px 5px, transparent 5px 8px,
        #1b2630 8px 9px, transparent 9px 12px);
    opacity: .82;
}

.dx-wb-main {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 0 10px;
}

.dx-wb-main .dx-wb-label { font-size: 11.5px; color: #6d7873; letter-spacing: .04em; }

.dx-wb-main .dx-wb-value {
    display: flex;
    align-items: flex-start;
    gap: 2px;
    font-family: var(--dx-cond);
    font-size: clamp(34px, 4vw, 44px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -.02em;
    color: #16222c;
    font-variant-numeric: tabular-nums;
}

.dx-wb-main .dx-wb-value small { margin-top: .3em; font-size: 15px; color: var(--dx-orange); }
.dx-wb-main .dx-wb-value span { display: inline; font: inherit; color: inherit; }

.dx-wb-side { text-align: right; font-size: 10.5px; color: #77817b; line-height: 1.6; }
.dx-wb-side b { display: block; font-family: var(--dx-mono); font-size: 13px; color: #16222c; }

.dx-wb-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
    padding: 10px 0;
    border-top: 1px dashed #d6d9d4;
    border-bottom: 1px dashed #d6d9d4;
}

.dx-wb-stats div span { display: block; font-size: 10px; color: #7d857f; }
.dx-wb-stats div b {
    display: block;
    font-family: var(--dx-mono);
    font-size: 13px;
    color: #1b2630;
    font-variant-numeric: tabular-nums;
}

.dx-wb-form { display: grid; grid-template-columns: 1fr 1fr; gap: 9px 12px; padding-top: 12px; }

.dx-field { display: grid; gap: 3px; min-width: 0; }
.dx-field.is-wide { grid-column: 1 / -1; }

.dx-field > span {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    font-size: 11px;
    color: #6d7873;
}

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

.dx-field .dx-input {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 0 8px;
    border: 1px solid #d6d9d4;
    border-radius: 4px;
    background: #f7f6f1;
    transition: border-color .16s ease, box-shadow .16s ease;
}

.dx-field .dx-input:focus-within { border-color: var(--dx-orange); box-shadow: 0 0 0 3px rgba(221, 101, 32, .12); }

.dx-field input,
.dx-field select {
    width: 100%;
    min-width: 0;
    border: 0;
    outline: none;
    background: transparent;
    color: #16222c;
    font: inherit;
    font-family: var(--dx-mono);
    font-size: 13.5px;
    padding: 7px 0;
    font-variant-numeric: tabular-nums;
}

/* 覆盖站点全局深色输入框样式（面单保持浅色纸面） */
.dx-page .dx-field .dx-input input,
.dx-page .dx-field .dx-input select {
    background: transparent;
    border-color: transparent;
    color: #16222c;
    -webkit-text-fill-color: #16222c;
    caret-color: #16222c;
}

:root[data-theme="dark"] .dx-card .dx-field .dx-input { border-color: #2a3742; background: #0f1820; }
:root[data-theme="dark"] .dx-card .dx-field .dx-input:focus-within { border-color: var(--dx-orange); }
:root[data-theme="dark"] .dx-card .dx-field .dx-input input,
:root[data-theme="dark"] .dx-card .dx-field .dx-input select {
    color: #e9eff3;
    -webkit-text-fill-color: #e9eff3;
    caret-color: #e9eff3;
}
:root[data-theme="dark"] .dx-card .dx-field > span { color: var(--dx-ink-3); }
:root[data-theme="dark"] .dx-card .dx-field .dx-unit { color: #74828d; }

.dx-field input::-webkit-outer-spin-button,
.dx-field input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.dx-field .dx-unit { flex: none; font-size: 10.5px; color: #8b938d; }

/* 深色主题下面单保持浅色，形成"贴纸"对比 */

/* ---------- 正文 ---------- */
.dx-body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 32px;
    padding: 40px 0 26px;
    align-items: start;
}

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

.dx-card {
    background: var(--dx-card);
    border: 1px solid var(--dx-line);
    border-radius: 12px;
    padding: 26px;
    box-shadow: var(--dx-shadow);
}

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

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

.dx-card-head h2 i {
    display: inline-grid;
    place-items: center;
    width: 24px;
    height: 24px;
    margin-right: 8px;
    border-radius: 5px;
    background: var(--dx-orange-soft);
    color: var(--dx-orange);
    font-style: normal;
    font-family: var(--dx-mono);
    font-size: 11px;
    font-weight: 700;
    vertical-align: 2px;
}

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

/* 对账小票 */
.dx-split { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 26px; margin-top: 16px; }

.dx-bill {
    border: 1px solid var(--dx-line);
    border-radius: 8px;
    background: var(--dx-card);
    padding: 0 14px;
}

.dx-bill-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 9px 0;
    border-bottom: 1px dashed var(--dx-line);
    font-size: 13px;
}

.dx-bill-row:last-child { border-bottom: 0; }
.dx-bill-row > span { color: var(--dx-ink-2); display: flex; align-items: center; gap: 7px; white-space: nowrap; }

.dx-bill-row .dx-sign {
    display: inline-grid;
    place-items: center;
    width: 16px;
    height: 16px;
    border-radius: 3px;
    font-family: var(--dx-mono);
    font-size: 11px;
    font-weight: 700;
    flex: none;
}

.dx-sign.is-plus { background: var(--dx-green-soft); color: var(--dx-green); }
.dx-sign.is-minus { background: var(--dx-red-soft); color: var(--dx-red); }

.dx-bill-row b { font-family: var(--dx-mono); font-size: 13px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.dx-bill-row b.is-plus { color: var(--dx-green); }
.dx-bill-row b.is-minus { color: var(--dx-red); }

.dx-bill-total {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: 4px;
    padding: 12px 14px;
    border-radius: 8px;
    background: var(--dx-navy);
    color: #fff;
    font-size: 13px;
}

.dx-bill-total b { font-family: var(--dx-mono); font-size: 19px; }

.dx-bill-sub {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    padding: 6px 2px;
    font-size: 11.5px;
    color: var(--dx-ink-3);
}

/* 收入构成条 */
.dx-compose { margin-top: 14px; }

.dx-compose-bar { display: flex; height: 20px; border-radius: 5px; overflow: hidden; background: var(--dx-line-2); }

.dx-compose-seg { height: 100%; width: 0; transition: width .45s ease; }
.dx-compose-seg.seg-fee { background: var(--dx-orange); }
.dx-compose-seg.seg-base { background: var(--dx-navy-2); }
.dx-compose-seg.seg-sub { background: var(--dx-green); }

.dx-compose-legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; font-size: 11.5px; color: var(--dx-ink-2); }
.dx-compose-legend > span { display: inline-flex; align-items: center; gap: 5px; }
.dx-compose-legend i { width: 8px; height: 8px; border-radius: 2px; }
.dx-compose-legend i.seg-fee { background: var(--dx-orange); }
.dx-compose-legend i.seg-base { background: var(--dx-navy-2); }
.dx-compose-legend i.seg-sub { background: var(--dx-green); }
.dx-compose-legend b { font-family: var(--dx-mono); color: var(--dx-ink); }

/* 敏感度柱状图 */
.dx-chart { margin-top: 16px; }

.dx-bars {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 168px;
    padding: 8px 4px 0;
    border-bottom: 1px solid var(--dx-line);
}

.dx-bar-col { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; gap: 4px; height: 100%; min-width: 0; }

.dx-bar-space { position: relative; flex: 1; min-height: 0; width: 100%; }

.dx-bar {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    border-radius: 3px 3px 0 0;
    background: linear-gradient(180deg, var(--dx-navy-2), var(--dx-navy));
    opacity: .55;
    transition: height .35s ease, opacity .2s ease;
}

.dx-bar.is-current { background: linear-gradient(180deg, var(--dx-orange-2), var(--dx-orange)); opacity: 1; }
.dx-bar.is-loss { background: linear-gradient(180deg, #e08b76, var(--dx-red)); opacity: .85; }

.dx-bar-col em {
    font-style: normal;
    text-align: center;
    font-family: var(--dx-mono);
    font-size: 9.5px;
    color: var(--dx-ink-3);
    white-space: nowrap;
}

.dx-chart-axis { display: flex; justify-content: space-between; margin-top: 6px; padding: 0 4px; font-size: 10.5px; color: var(--dx-ink-3); font-family: var(--dx-mono); }

.dx-sensitivity {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 14px;
}

.dx-sens {
    border: 1px solid var(--dx-line);
    border-radius: 8px;
    padding: 10px 12px;
    background: var(--dx-bg);
}

.dx-sens > span { display: block; font-size: 11px; color: var(--dx-ink-3); }
.dx-sens b { display: block; margin-top: 1px; font-family: var(--dx-mono); font-size: 16px; color: var(--dx-red); }

/* 目标与保本 */
.dx-goal { margin-top: 16px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }

.dx-goal div { border: 1px solid var(--dx-line); border-radius: 8px; padding: 11px 12px; }
.dx-goal div > span { display: block; font-size: 11px; color: var(--dx-ink-3); }
.dx-goal div b { display: block; margin-top: 1px; font-family: var(--dx-mono); font-size: 17px; font-variant-numeric: tabular-nums; }
.dx-goal div b.is-orange { color: var(--dx-orange); }
.dx-goal div b.is-green { color: var(--dx-green); }

/* 表格 */
.dx-table-wrap { margin-top: 16px; border: 1px solid var(--dx-line); border-radius: 8px; overflow-x: auto; max-width: 100%; }

.dx-table { width: 100%; min-width: 520px; border-collapse: collapse; font-size: 13px; }

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

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

/* 承包区 */
.dx-contract { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .85fr); gap: 24px; margin-top: 16px; }

.dx-contract-form { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 12px; }

.dx-contract-result {
    border: 1px dashed var(--dx-line);
    border-radius: 10px;
    padding: 16px;
    background: var(--dx-bg);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 18px;
    align-self: start;
}

.dx-profit-label { font-size: 12px; color: var(--dx-ink-2); }

.dx-profit {
    display: flex;
    align-items: flex-start;
    gap: 2px;
    font-family: var(--dx-cond);
    font-size: 32px;
    font-weight: 700;
    line-height: 1.1;
    color: var(--dx-green);
    font-variant-numeric: tabular-nums;
}

.dx-profit.is-negative { color: var(--dx-red); }
.dx-profit small { margin-top: .32em; font-size: 14px; }
.dx-profit span { display: inline; font: inherit; color: inherit; }

.dx-contract-rows { display: grid; gap: 5px; font-size: 12px; color: var(--dx-ink-2); }
.dx-contract-rows div { display: flex; justify-content: space-between; gap: 10px; }
.dx-contract-rows b { font-family: var(--dx-mono); color: var(--dx-ink); }

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

.dx-note {
    padding: 12px 14px;
    border-left: 3px solid var(--dx-orange);
    border-radius: 0 6px 6px 0;
    background: var(--dx-bg);
    font-size: 13px;
    color: var(--dx-ink-2);
}

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

.dx-formula {
    margin-top: 14px;
    padding: 14px 16px;
    border: 1px dashed var(--dx-line);
    border-radius: 8px;
    background: var(--dx-bg);
    font-family: var(--dx-mono);
    font-size: 12.5px;
    line-height: 2;
    color: var(--dx-ink-2);
    overflow-x: auto;
}

.dx-formula span { color: var(--dx-orange); }

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

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

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

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

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

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

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

.dx-rail-card {
    border: 1px solid var(--dx-line);
    border-radius: 10px;
    background: var(--dx-card);
    padding: 18px;
    box-shadow: var(--dx-shadow);
}

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

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

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

.dx-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 9px 11px;
    border: 1px solid var(--dx-line);
    border-radius: 6px;
    font-size: 13px;
    color: var(--dx-ink-2);
    transition: all .16s ease;
}

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

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

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

@media (max-width: 700px) {
    .dx-wrap { width: calc(100% - 28px); }
    .dx-hero { padding-top: 18px; padding-bottom: 38px; }
    .dx-top { margin-bottom: 22px; }
    .dx-intro h1 { font-size: 32px; }
    .dx-lede { font-size: 14.5px; }
    .dx-waybill { padding: 16px 14px 18px; }
    .dx-wb-form { grid-template-columns: minmax(0, 1fr); }
    .dx-body { padding-top: 26px; gap: 24px; }
    .dx-card { padding: 20px 16px; }
    .dx-contract-form { grid-template-columns: minmax(0, 1fr); }
    .dx-goal { grid-template-columns: 1fr 1fr; }
    .dx-sensitivity { grid-template-columns: 1fr; }
    .dx-rail { grid-template-columns: minmax(0, 1fr); }
    .dx-modes button { padding: 6px 10px; }
    .dx-bars { height: 140px; gap: 4px; }
}