/* ==========================================================================
   123 · 焊接材料用量估算
   视觉概念：焊接工艺卡 —— 铁灰机身、电弧蓝、熔池金、焊缝截面工程图
   ========================================================================== */

:root {
    --wm-bg: #f0f2f4;
    --wm-panel: #ffffff;
    --wm-panel-2: #e7eaee;
    --wm-ink: #12161a;
    --wm-ink-2: #3e4a54;
    --wm-muted: #78858f;
    --wm-line: #d8dee4;
    --wm-line-2: #c1cad2;
    --wm-arc: #2b5fd0;
    --wm-arc-2: #214ba8;
    --wm-arc-soft: #e5edfb;
    --wm-gold: #a86a12;
    --wm-gold-soft: #fbf0dd;
    --wm-steel: #d9dee3;
    --wm-steel-2: #b6bfc8;
    --wm-hero: #191d21;
    --wm-hero-line: rgba(255, 255, 255, .05);
    --wm-bad: #a63226;
    --wm-bad-soft: #fbeae7;
    --wm-ok: #1f6b4c;
    --wm-shadow: 0 1px 2px rgba(18, 22, 26, .05), 0 20px 44px -38px rgba(18, 22, 26, .55);
    --wm-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    --wm-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

:root[data-theme="dark"] {
    --wm-bg: #090b0d;
    --wm-panel: #12171b;
    --wm-panel-2: #182026;
    --wm-ink: #e7edf2;
    --wm-ink-2: #a6b3bd;
    --wm-muted: #74828c;
    --wm-line: #1f292f;
    --wm-line-2: #2b363e;
    --wm-arc: #6b9bf7;
    --wm-arc-2: #8ab1fa;
    --wm-arc-soft: #0d1c33;
    --wm-gold: #e0a94a;
    --wm-gold-soft: #241a0c;
    --wm-steel: #2a333a;
    --wm-steel-2: #3a464f;
    --wm-hero: #07090b;
    --wm-hero-line: rgba(255, 255, 255, .045);
    --wm-bad: #e08b7d;
    --wm-bad-soft: #261412;
    --wm-ok: #5bbf8f;
    --wm-shadow: 0 1px 2px rgba(0, 0, 0, .55), 0 24px 50px -36px rgba(0, 0, 0, .95);
}

.wm-wrap {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 22px;
}

/* ---------------- 首屏 ---------------- */
.wm-hero {
    position: relative;
    padding: 18px 0 26px;
    background:
        radial-gradient(circle at 18% 12%, rgba(43, 95, 208, .22), transparent 42%),
        radial-gradient(circle at 78% 6%, rgba(224, 169, 74, .12), transparent 44%),
        radial-gradient(1px 1px at 22% 38%, rgba(255, 255, 255, .5), transparent 100%),
        radial-gradient(1px 1px at 64% 22%, rgba(255, 255, 255, .35), transparent 100%),
        radial-gradient(1px 1px at 82% 58%, rgba(255, 255, 255, .3), transparent 100%),
        var(--wm-hero);
    color: #e9eef3;
}
.wm-hero::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--wm-arc) 30%, var(--wm-gold) 70%, transparent);
    opacity: .5;
}

.wm-crumb {
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 17px;
    font-size: 12.5px;
    color: rgba(233, 238, 243, .5);
}
.wm-crumb a { color: rgba(233, 238, 243, .5); text-decoration: none; }
.wm-crumb a:hover { color: #fff; }
.wm-crumb i { font-style: normal; opacity: .45; }

.wm-top {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 26px;
    align-items: end;
    margin-bottom: 20px;
}
.wm-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 11px;
    font-family: var(--wm-mono);
    font-size: 10px;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--wm-gold);
}
.wm-eyebrow::before {
    content: "";
    width: 16px;
    height: 2px;
    background: currentColor;
}
.wm-h1 {
    margin: 0 0 12px;
    font-family: var(--wm-sans);
    font-size: clamp(27px, 3.4vw, 40px);
    line-height: 1.18;
    font-weight: 800;
    letter-spacing: -.034em;
    color: #f4f7fa;
}
.wm-h1 em {
    font-style: normal;
    color: #7fa7f8;
    text-shadow: 0 0 30px rgba(107, 155, 247, .35);
}
.wm-sub {
    margin: 0;
    max-width: 58ch;
    font-size: 14.6px;
    line-height: 1.86;
    color: rgba(233, 238, 243, .7);
}
.wm-sub b { color: #fff; font-weight: 600; white-space: nowrap; }

.wm-side { display: flex; flex-direction: column; align-items: flex-end; gap: 9px; }
.wm-theme {
    display: inline-flex;
    gap: 2px;
    padding: 3px;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 7px;
    background: rgba(255, 255, 255, .05);
}
.wm-theme button {
    appearance: none;
    border: 0;
    background: transparent;
    color: rgba(233, 238, 243, .55);
    font: inherit;
    font-size: 11.5px;
    padding: 5px 11px;
    border-radius: 5px;
    cursor: pointer;
}
.wm-theme button:hover { color: #fff; }
.wm-theme button[aria-pressed="true"] {
    background: #7fa7f8;
    color: #101a2e;
    font-weight: 700;
}
.wm-live {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--wm-mono);
    font-size: 9.5px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: rgba(233, 238, 243, .45);
}
.wm-live i {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--wm-gold);
    animation: wmPulse 2.4s ease-in-out infinite;
}
@keyframes wmPulse { 0%, 100% { opacity: 1; } 50% { opacity: .25; } }

/* ---------------- 工作台 ---------------- */
.wm-desk {
    display: grid;
    grid-template-columns: 330px minmax(0, 1fr);
    gap: 14px;
    align-items: start;
}

.wm-panel {
    border: 1px solid var(--wm-line);
    border-radius: 10px;
    background: var(--wm-panel);
    box-shadow: var(--wm-shadow);
    overflow: hidden;
}
.wm-ph {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--wm-line);
    background: var(--wm-panel-2);
}
.wm-ph h2 {
    margin: 0;
    font-family: var(--wm-mono);
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: .13em;
    text-transform: uppercase;
    color: var(--wm-ink);
}
.wm-ph span {
    margin-left: auto;
    font-family: var(--wm-mono);
    font-size: 9.5px;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--wm-muted);
}

/* 表单 */
.wm-form { padding: 12px 14px 14px; }
.wm-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
}
.wm-field { display: grid; gap: 4px; min-width: 0; }
.wm-field.is-wide { grid-column: 1 / -1; }
.wm-field.is-hide { display: none; }
.wm-field > label {
    font-family: var(--wm-mono);
    font-size: 9.5px;
    letter-spacing: .05em;
    text-transform: uppercase;
    color: var(--wm-muted);
}
.wm-inp {
    display: flex;
    align-items: center;
    border: 1px solid var(--wm-line-2);
    border-radius: 6px;
    background: var(--wm-panel);
    transition: border-color .15s, box-shadow .15s;
}
.wm-inp:focus-within {
    border-color: var(--wm-arc);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--wm-arc) 14%, transparent);
}
.wm-inp input {
    flex: 1 1 auto;
    width: 100%;
    min-width: 0;
    border: 0;
    background: transparent;
    color: var(--wm-ink);
    font-family: var(--wm-mono);
    font-size: 14px;
    font-weight: 600;
    padding: 7px 2px 7px 9px;
    outline: none;
    font-variant-numeric: tabular-nums;
}
.wm-inp span {
    flex: 0 0 auto;
    padding-right: 8px;
    font-family: var(--wm-mono);
    font-size: 9.5px;
    color: var(--wm-muted);
    white-space: nowrap;
}
.wm-inp.is-bad { border-color: var(--wm-bad); background: var(--wm-bad-soft); }
.wm-inp.is-bad span { color: var(--wm-bad); }

.wm-sel {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid var(--wm-line-2);
    border-radius: 6px;
    background: var(--wm-panel);
    color: var(--wm-ink);
    font-family: var(--wm-sans);
    font-size: 12.6px;
    padding: 7px 8px;
    outline: none;
    cursor: pointer;
}
.wm-sel:focus { border-color: var(--wm-arc); }

.wm-actions {
    display: flex;
    gap: 6px;
    margin-top: 12px;
    padding-top: 11px;
    border-top: 1px solid var(--wm-line);
}
.wm-btn {
    appearance: none;
    font: inherit;
    font-size: 12.5px;
    padding: 7px 12px;
    border-radius: 6px;
    border: 1px solid var(--wm-line-2);
    background: var(--wm-panel);
    color: var(--wm-ink-2);
    cursor: pointer;
    white-space: nowrap;
    transition: all .15s;
}
.wm-btn:hover { border-color: var(--wm-ink); color: var(--wm-ink); }
.wm-btn.is-primary {
    flex: 1 1 auto;
    background: var(--wm-arc);
    border-color: var(--wm-arc);
    color: #fff;
    font-weight: 700;
}
.wm-btn.is-primary:hover { background: var(--wm-arc-2); border-color: var(--wm-arc-2); color: #fff; }
.wm-btn.is-ghost { background: transparent; }

.wm-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 9px;
}
.wm-presets button {
    appearance: none;
    border: 1px dashed var(--wm-line-2);
    background: transparent;
    color: var(--wm-ink-2);
    font: inherit;
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 4px;
    cursor: pointer;
}
.wm-presets button:hover { border-color: var(--wm-gold); color: var(--wm-gold); }

.wm-note {
    margin: 9px 0 0;
    padding: 8px 10px;
    border-left: 3px solid var(--wm-gold);
    border-radius: 4px;
    background: var(--wm-gold-soft);
    font-size: 11.5px;
    line-height: 1.7;
    color: var(--wm-ink-2);
}
.wm-note.is-bad { border-left-color: var(--wm-bad); background: var(--wm-bad-soft); }

/* ---------------- 剖面图 ---------------- */
.wm-stage { display: grid; }
.wm-stage-head {
    display: flex;
    align-items: baseline;
    gap: 9px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--wm-line);
    background: var(--wm-panel-2);
}
.wm-stage-head h2 {
    margin: 0;
    font-family: var(--wm-mono);
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: .13em;
    text-transform: uppercase;
    color: var(--wm-ink);
}
.wm-stage-head span {
    margin-left: auto;
    font-family: var(--wm-mono);
    font-size: 10px;
    color: var(--wm-muted);
}

.wm-figure {
    padding: 8px 12px 0;
    background:
        linear-gradient(var(--wm-line) 1px, transparent 1px) 0 0 / 100% 24px,
        linear-gradient(90deg, var(--wm-line) 1px, transparent 1px) 0 0 / 24px 100%,
        var(--wm-panel);
}
.wm-svg { width: 100%; height: auto; display: block; }

.wm-plate { fill: var(--wm-steel); stroke: var(--wm-steel-2); stroke-width: 1.4; }
.wm-weld { fill: url(#wmWeldGrad); stroke: var(--wm-gold); stroke-width: 1.2; }
.wm-weld-line { stroke: var(--wm-gold); stroke-width: 1; opacity: .55; }
.wm-dim { stroke: var(--wm-muted); stroke-width: 1; }
.wm-dim-text {
    font-family: var(--wm-mono);
    font-size: 9.5px;
    fill: var(--wm-muted);
}
.wm-dim-strong {
    font-family: var(--wm-mono);
    font-size: 10px;
    fill: var(--wm-arc);
    font-weight: 600;
}
.wm-arc-spark { stroke: var(--wm-arc); stroke-width: 1.6; opacity: .5; stroke-linecap: round; }

/* ---------------- 读数 ---------------- */
.wm-read {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    background: var(--wm-line);
    border-top: 1px solid var(--wm-line);
}
.wm-cell { padding: 12px 14px 13px; background: var(--wm-panel); }
.wm-cell span {
    display: block;
    font-family: var(--wm-mono);
    font-size: 9px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--wm-muted);
    margin-bottom: 3px;
}
.wm-cell b {
    font-family: var(--wm-mono);
    font-size: clamp(19px, 2.2vw, 25px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -.02em;
    color: var(--wm-ink);
    font-variant-numeric: tabular-nums;
}
.wm-cell b small { font-size: 10px; font-weight: 500; color: var(--wm-muted); margin-left: 2px; }
.wm-cell.is-cost b { color: var(--wm-gold); }
.wm-cell i {
    display: block;
    margin-top: 2px;
    font-family: var(--wm-mono);
    font-style: normal;
    font-size: 9.5px;
    color: var(--wm-muted);
}

.wm-tip {
    margin: 0;
    padding: 10px 14px 12px;
    border-top: 1px solid var(--wm-line);
    font-size: 11.8px;
    line-height: 1.72;
    color: var(--wm-ink-2);
}
.wm-tip b { color: var(--wm-ink); }
.wm-tip strong { color: var(--wm-arc); font-family: var(--wm-mono); }

/* ---------------- 表格 ---------------- */
.wm-body { padding-bottom: 8px; }
.wm-card {
    margin-top: 16px;
    border: 1px solid var(--wm-line);
    border-radius: 10px;
    background: var(--wm-panel);
    box-shadow: var(--wm-shadow);
    overflow: hidden;
}
.wm-card-head {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 12px 15px;
    border-bottom: 1px solid var(--wm-line);
    background: var(--wm-panel-2);
}
.wm-card-head h2 {
    margin: 0;
    font-family: var(--wm-mono);
    font-size: 10.5px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--wm-ink);
}
.wm-card-head span { font-size: 12px; color: var(--wm-muted); }
.wm-card-head .wm-btn { margin-left: auto; padding: 5px 10px; font-size: 11.5px; }
.wm-scroll { overflow-x: auto; }
.wm-table { width: 100%; min-width: 640px; border-collapse: collapse; font-size: 12.4px; }
.wm-table th,
.wm-table td {
    padding: 7px 11px;
    text-align: right;
    border-bottom: 1px dashed var(--wm-line);
    font-variant-numeric: tabular-nums;
}
.wm-table th:first-child,
.wm-table td:first-child { text-align: left; font-weight: 600; }
.wm-table th {
    font-family: var(--wm-mono);
    font-size: 9.5px;
    letter-spacing: .05em;
    text-transform: uppercase;
    color: var(--wm-muted);
    font-weight: 600;
    white-space: nowrap;
    background: var(--wm-panel-2);
}
.wm-table td { font-family: var(--wm-mono); color: var(--wm-ink-2); }
.wm-table tbody tr:hover td { background: var(--wm-panel-2); }
.wm-table tr.is-cur td {
    color: var(--wm-arc);
    font-weight: 700;
    background: var(--wm-arc-soft);
}

/* ---------------- 说明 ---------------- */
.wm-doc {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin: 26px 0 6px;
}
.wm-doc-block {
    padding: 17px 19px;
    border: 1px solid var(--wm-line);
    border-radius: 10px;
    background: var(--wm-panel);
}
.wm-doc-block h2 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 9px;
    font-size: 14.8px;
    font-weight: 700;
    color: var(--wm-ink);
}
.wm-doc-block h2::before {
    content: "";
    width: 3px;
    height: 12px;
    background: var(--wm-arc);
    border-radius: 1px;
}
.wm-doc-block p,
.wm-doc-block li { font-size: 13px; line-height: 1.95; color: var(--wm-ink-2); }
.wm-doc-block p { margin: 0 0 8px; }
.wm-doc-block p:last-child { margin-bottom: 0; }
.wm-doc-block ul, .wm-doc-block ol { margin: 0; padding-left: 18px; }
.wm-doc-block li + li { margin-top: 4px; }
.wm-doc-block b { color: var(--wm-ink); }
.wm-doc-block code {
    font-family: var(--wm-mono);
    font-size: 11.6px;
    padding: 1px 5px;
    border-radius: 3px;
    background: var(--wm-panel-2);
    color: var(--wm-arc);
}
.wm-formula {
    margin: 10px 0 0;
    padding: 11px 13px;
    border: 1px dashed var(--wm-line-2);
    border-radius: 6px;
    background: var(--wm-panel-2);
    font-family: var(--wm-mono);
    font-size: 11.4px;
    line-height: 2;
    color: var(--wm-ink-2);
    overflow-x: auto;
}

.wm-toast {
    position: fixed;
    left: 50%;
    bottom: 26px;
    transform: translate(-50%, 12px);
    z-index: 90;
    max-width: min(88vw, 440px);
    padding: 10px 18px;
    border-radius: 7px;
    background: var(--wm-ink);
    color: var(--wm-panel);
    font-size: 13px;
    line-height: 1.6;
    box-shadow: 0 18px 36px -22px rgba(0, 0, 0, .7);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s, transform .2s;
}
.wm-toast.is-show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 1040px) {
    .wm-desk { grid-template-columns: minmax(0, 1fr); }
    .wm-top { grid-template-columns: minmax(0, 1fr); gap: 13px; }
    .wm-side { flex-direction: row; align-items: center; justify-content: flex-start; }
    .wm-stage { order: -1; }
    .wm-read { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .wm-doc { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 640px) {
    .wm-wrap { padding: 0 14px; }
    .wm-hero { padding: 14px 0 20px; }
    .wm-h1 { font-size: 24px; }
    .wm-sub { font-size: 13.8px; line-height: 1.8; }
    .wm-live { display: none; }
    .wm-form { padding: 11px 12px 13px; }
    .wm-read { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .wm-cell b { font-size: 18px; }
    .wm-actions { flex-wrap: wrap; }
    .wm-btn.is-primary { flex: 1 1 100%; }
    .wm-card-head span { display: none; }
}