/* ============================================================
 * student-laptop-budget-calc.css — 学生购机预算与配置档位计算器
 * 主题：参数台（深靛蓝 + 霓虹紫 + 柠檬黄，网格底纹），与票据风工具完全错开
 * ============================================================ */

.slb-page {
    --slb-indigo: #4f46e5;
    --slb-violet: #8b5cf6;
    --slb-neon: #22d3ee;
    --slb-lemon: #facc15;
    --slb-deep: #141a3a;
    --slb-line: rgba(139, 92, 246, .26);
    --slb-line-soft: rgba(139, 92, 246, .12);
    --slb-card: #ffffff;
    --slb-paper: #f7f7fd;
    --slb-text: #1b1f3b;
    --slb-faint: #656b90;
    --slb-ok: #0f9d76;
    --slb-warn: #d97706;
    --slb-bad: #dc2626;
    --slb-shadow: 0 16px 38px rgba(20, 26, 58, .12);
    --slb-radius: 18px;
    --slb-mono: "JetBrains Mono", "Cascadia Mono", Consolas, "Courier New", monospace;
}

:root[data-theme="dark"] .slb-page {
    --slb-indigo: #818cf8;
    --slb-violet: #c4b5fd;
    --slb-neon: #67e8f9;
    --slb-lemon: #fde047;
    --slb-deep: #0a0e22;
    --slb-line: rgba(165, 180, 252, .28);
    --slb-line-soft: rgba(165, 180, 252, .14);
    --slb-card: #11162e;
    --slb-paper: #0e1327;
    --slb-text: #e8ecff;
    --slb-faint: #9aa2cc;
    --slb-ok: #34d399;
    --slb-warn: #fbbf24;
    --slb-bad: #f87171;
    --slb-shadow: 0 18px 42px rgba(0, 0, 0, .45);
}

/* ---------- 首屏 ---------- */
.slb-hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 356px;
    gap: 26px;
    align-items: start;
    padding: 30px 30px 26px;
    border-radius: 26px;
    background:
        linear-gradient(rgba(139, 92, 246, .10) 1px, transparent 1px) 0 0 / 100% 26px,
        linear-gradient(90deg, rgba(139, 92, 246, .10) 1px, transparent 1px) 0 0 / 26px 100%,
        radial-gradient(120% 120% at 88% 0%, rgba(34, 211, 238, .22) 0%, rgba(34, 211, 238, 0) 48%),
        linear-gradient(140deg, #101740 0%, #241f5c 52%, #2b1f52 100%);
    color: #eef1ff;
    box-shadow: var(--slb-shadow);
    overflow: hidden;
}

.slb-hero::after {
    content: "";
    position: absolute;
    left: -70px;
    bottom: -120px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle at 40% 35%, rgba(250, 204, 21, .16), transparent 66%);
    pointer-events: none;
}

.slb-hero-copy { min-width: 0; position: relative; z-index: 1; }

.slb-kicker {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.8px;
    color: #a5b4fc;
    padding: 5px 12px;
    border: 1px solid rgba(165, 180, 252, .4);
    border-radius: 999px;
    background: rgba(129, 140, 248, .12);
}

.slb-hero h1 {
    margin: 14px 0 0;
    font-size: 30px;
    line-height: 1.26;
    font-weight: 800;
    letter-spacing: .3px;
    color: #fff;
}

.slb-lead {
    margin: 12px 0 0;
    max-width: 720px;
    font-size: 14.5px;
    line-height: 1.85;
    color: rgba(238, 241, 255, .86);
}

.slb-lead b { color: #67e8f9; font-weight: 700; }

.slb-tags { list-style: none; display: flex; flex-wrap: wrap; gap: 7px; margin: 16px 0 0; padding: 0; }

.slb-tags li {
    font-size: 12px;
    padding: 5px 11px;
    border-radius: 8px;
    background: rgba(34, 211, 238, .10);
    border: 1px solid rgba(34, 211, 238, .28);
    color: #cffafe;
}

.slb-quick {
    margin-top: 18px;
    padding: 15px 16px 14px;
    border-radius: 16px;
    background: rgba(10, 14, 34, .86);
    border: 1px solid rgba(129, 140, 248, .38);
    box-shadow: 0 12px 30px rgba(4, 6, 20, .5);
    color: var(--slb-text);
}

.slb-quick-title { font-size: 13px; font-weight: 700; color: #67e8f9; margin-bottom: 10px; }

.slb-quick-row { display: grid; grid-template-columns: 1.25fr 1fr auto; gap: 10px; align-items: end; }

.slb-quick-field { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.slb-quick-field span { font-size: 12px; color: #9aa2cc; font-weight: 600; }

.slb-quick-field input,
.slb-quick-field select {
    height: 40px;
    border-radius: 10px;
    border: 1px solid rgba(129, 140, 248, .45);
    background: rgba(9, 12, 30, .9);
    color: #e8ecff;
    padding: 0 10px;
    font-size: 14px;
    font-family: inherit;
    min-width: 0;
}

.slb-quick-field input:focus,
.slb-quick-field select:focus { outline: 2px solid #67e8f9; outline-offset: 1px; }

/* ---------- 规格卡 ---------- */
.slb-spec {
    position: relative;
    z-index: 1;
    background: var(--slb-card);
    color: var(--slb-text);
    border-radius: 18px;
    border: 1px solid var(--slb-line);
    padding: 18px 18px 16px;
    box-shadow: 0 20px 44px rgba(4, 6, 20, .5);
}

.slb-spec-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    padding-bottom: 11px;
    border-bottom: 1px dashed var(--slb-line);
}

.slb-spec-head b { font-size: 14px; color: var(--slb-indigo); letter-spacing: .4px; }
.slb-spec-head span { font-size: 11.5px; color: var(--slb-faint); }

.slb-spec-top { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; margin-top: 12px; }

.slb-spec-tier {
    font-size: 26px;
    font-weight: 800;
    letter-spacing: .5px;
    color: var(--slb-text);
    line-height: 1.2;
}

.slb-spec-score { text-align: right; font-family: var(--slb-mono); }
.slb-spec-score span { font-size: 26px; font-weight: 800; color: var(--slb-neon); }
.slb-spec-score em { display: block; font-style: normal; font-size: 11px; color: var(--slb-faint); }

.slb-spec-range { margin-top: 12px; }
.slb-spec-range-bar { height: 8px; border-radius: 999px; background: var(--slb-line-soft); overflow: hidden; }
.slb-spec-range-bar span { display: block; height: 100%; border-radius: 999px; background: linear-gradient(90deg, #22d3ee, #8b5cf6); transition: width .3s; }
.slb-spec-range-txt { display: flex; justify-content: space-between; align-items: baseline; margin-top: 6px; font-size: 12px; color: var(--slb-faint); }
.slb-spec-range-txt b { font-family: var(--slb-mono); font-size: 14px; color: var(--slb-text); }

.slb-spec-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }

.slb-chip {
    font-size: 11.5px;
    font-weight: 600;
    padding: 4px 9px;
    border-radius: 7px;
    background: var(--slb-line-soft);
    border: 1px solid var(--slb-line);
    color: var(--slb-text);
    font-family: var(--slb-mono);
}

.slb-chip.is-warn { background: rgba(250, 204, 21, .16); border-color: rgba(250, 204, 21, .4); color: #a16207; }
.slb-chip.is-bad { background: rgba(248, 113, 113, .14); border-color: rgba(248, 113, 113, .38); color: #b91c1c; }
:root[data-theme="dark"] .slb-chip.is-warn { color: #fde047; }
:root[data-theme="dark"] .slb-chip.is-bad { color: #fca5a5; }

.slb-spec-rows { margin-top: 14px; }

.slb-spec-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px dotted var(--slb-line);
    font-size: 13px;
}

.slb-spec-row:last-child { border-bottom: 0; }
.slb-spec-row .k { color: var(--slb-faint); }
.slb-spec-row .v { font-family: var(--slb-mono); font-weight: 700; color: var(--slb-text); }
.slb-spec-row.is-key { border-top: 1px dashed var(--slb-line); }
.slb-spec-row.is-key .k { color: var(--slb-indigo); font-weight: 700; }
.slb-spec-row.is-key .v { color: var(--slb-neon); font-size: 16px; }
:root[data-theme="dark"] .slb-spec-row.is-key .v { color: #67e8f9; }

/* ---------- 徽标 ---------- */
.slb-badge { display: inline-block; padding: 3px 10px; border-radius: 7px; font-size: 12px; font-weight: 700; white-space: nowrap; }
.slb-badge.is-safe { background: rgba(15, 157, 118, .14); color: #0b7a5a; }
.slb-badge.is-warn { background: rgba(250, 204, 21, .18); color: #92600a; }
.slb-badge.is-danger { background: rgba(220, 38, 38, .13); color: #b91c1c; }
.slb-badge.is-idle { background: var(--slb-line-soft); color: var(--slb-faint); }
:root[data-theme="dark"] .slb-badge.is-safe { background: rgba(52, 211, 153, .18); color: #6ee7b7; }
:root[data-theme="dark"] .slb-badge.is-warn { background: rgba(251, 191, 36, .18); color: #fcd34d; }
:root[data-theme="dark"] .slb-badge.is-danger { background: rgba(248, 113, 113, .2); color: #fca5a5; }

/* ---------- 预设 ---------- */
.slb-presets {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin: 18px 0 0;
    padding: 12px 16px;
    background: var(--slb-card);
    border: 1px solid var(--slb-line);
    border-radius: 14px;
}

.slb-presets-label { font-size: 12.5px; font-weight: 700; color: var(--slb-faint); }

.slb-presets button {
    font-family: inherit;
    font-size: 12.5px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 8px;
    border: 1px solid var(--slb-line);
    background: var(--slb-line-soft);
    color: var(--slb-indigo);
    cursor: pointer;
    transition: all .18s;
}

.slb-presets button:hover { background: var(--slb-indigo); color: #fff; border-color: transparent; transform: translateY(-1px); }

/* ---------- 提示 ---------- */
.slb-alert {
    margin-top: 14px;
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid rgba(217, 119, 6, .32);
    background: rgba(250, 204, 21, .12);
    color: #92400e;
    font-size: 13.5px;
    line-height: 1.7;
}

:root[data-theme="dark"] .slb-alert { color: #fcd34d; }

/* ---------- 面板 ---------- */
.slb-panel {
    margin-top: 20px;
    padding: 24px 26px 26px;
    background: var(--slb-card);
    border: 1px solid var(--slb-line);
    border-radius: var(--slb-radius);
    box-shadow: var(--slb-shadow);
}

.slb-panel-head { margin-bottom: 18px; }

.slb-pk {
    display: inline-block;
    font-size: 11.5px;
    font-weight: 800;
    letter-spacing: 1.4px;
    color: var(--slb-violet);
    padding: 4px 11px;
    border-radius: 7px;
    background: var(--slb-line-soft);
    border: 1px solid var(--slb-line);
}

.slb-pk--neon { background: rgba(34, 211, 238, .14); color: #0e7490; border-color: rgba(34, 211, 238, .34); }
:root[data-theme="dark"] .slb-pk--neon { color: #67e8f9; }

.slb-panel-head h2 { margin: 10px 0 0; font-size: 20px; font-weight: 800; color: var(--slb-text); letter-spacing: .2px; }
.slb-panel-head p { margin: 7px 0 0; font-size: 13.5px; line-height: 1.8; color: var(--slb-faint); }

.slb-cols { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 26px; }
.slb-col { min-width: 0; }

.slb-sub {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 20px 0 12px;
    font-size: 14.5px;
    font-weight: 700;
    color: var(--slb-text);
}

.slb-sub:first-child { margin-top: 0; }
.slb-sub i {
    font-style: normal;
    width: 21px;
    height: 21px;
    border-radius: 6px;
    display: grid;
    place-items: center;
    font-size: 11.5px;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(135deg, var(--slb-indigo), var(--slb-violet));
    flex: none;
}
.slb-sub-note { font-size: 12px; font-weight: 500; color: var(--slb-faint); }

.slb-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(176px, 1fr)); gap: 12px; }

.slb-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.slb-label { font-size: 12.5px; font-weight: 600; color: var(--slb-text); display: flex; gap: 6px; align-items: baseline; }
.slb-label span { font-size: 11.5px; font-weight: 500; color: var(--slb-faint); }

.slb-input,
.slb-select {
    width: 100%;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--slb-line);
    background: var(--slb-paper);
    color: var(--slb-text);
    padding: 0 11px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color .16s, box-shadow .16s;
}

.slb-mono { font-family: var(--slb-mono); letter-spacing: .2px; }
.slb-input[readonly] { background: var(--slb-line-soft); color: var(--slb-faint); }

.slb-input:focus,
.slb-select:focus { outline: none; border-color: var(--slb-indigo); box-shadow: 0 0 0 3px var(--slb-line-soft); }

.slb-select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--slb-faint) 50%), linear-gradient(135deg, var(--slb-faint) 50%, transparent 50%); background-position: calc(100% - 16px) 17px, calc(100% - 11px) 17px; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; }

.slb-hint {
    margin: 12px 0 0;
    padding: 11px 13px;
    background: var(--slb-line-soft);
    border-left: 3px solid var(--slb-neon);
    border-radius: 0 10px 10px 0;
    font-size: 12.5px;
    line-height: 1.8;
    color: var(--slb-faint);
}
.slb-hint b { color: var(--slb-text); }

/* ---------- 需求开关 ---------- */
.slb-needs { display: grid; grid-template-columns: repeat(auto-fit, minmax(168px, 1fr)); gap: 10px; }

.slb-need {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    text-align: left;
    font-family: inherit;
    border: 1.5px solid var(--slb-line);
    background: var(--slb-paper);
    border-radius: 12px;
    padding: 10px 12px;
    cursor: pointer;
    transition: all .18s;
    color: var(--slb-text);
}

.slb-need .box {
    width: 17px;
    height: 17px;
    border-radius: 5px;
    border: 1.5px solid var(--slb-line);
    flex: none;
    margin-top: 1px;
    display: grid;
    place-items: center;
    font-size: 11px;
    color: #fff;
}

.slb-need .tx .n { display: block; font-size: 13px; font-weight: 700; }
.slb-need .tx .d { display: block; font-size: 11px; color: var(--slb-faint); margin-top: 2px; line-height: 1.5; }
.slb-need:hover { border-color: var(--slb-violet); transform: translateY(-1px); }
.slb-need.on { border-color: var(--slb-indigo); background: var(--slb-line-soft); }
.slb-need.on .box { background: var(--slb-indigo); border-color: var(--slb-indigo); }
.slb-need.on .tx .n { color: var(--slb-indigo); }
:root[data-theme="dark"] .slb-need.on .tx .n { color: #a5b4fc; }

/* ---------- 档位卡 ---------- */
.slb-tiers { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }

.slb-tier {
    text-align: left;
    font-family: inherit;
    border: 1.5px solid var(--slb-line);
    background: var(--slb-paper);
    border-radius: 15px;
    padding: 15px 16px 14px;
    cursor: pointer;
    transition: all .2s;
    color: var(--slb-text);
    position: relative;
    overflow: hidden;
}

.slb-tier::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 3px;
    background: linear-gradient(90deg, var(--slb-indigo), var(--slb-violet));
    opacity: .35;
}

.slb-tier:hover { transform: translateY(-2px); border-color: var(--slb-violet); }
.slb-tier.on { border-color: var(--slb-indigo); box-shadow: 0 12px 26px var(--slb-line-soft); background: var(--slb-line-soft); }
.slb-tier.on::before { opacity: 1; }

.slb-tier .tn { font-size: 16px; font-weight: 800; }
.slb-tier .tp { font-family: var(--slb-mono); font-size: 19px; font-weight: 800; color: var(--slb-indigo); margin-top: 6px; }
:root[data-theme="dark"] .slb-tier .tp { color: #a5b4fc; }
.slb-tier .tl { font-size: 12px; color: var(--slb-faint); line-height: 1.7; margin-top: 6px; }
.slb-tier .tu { margin-top: 9px; display: flex; flex-wrap: wrap; gap: 5px; }
.slb-tier .tu span { font-size: 11px; font-family: var(--slb-mono); padding: 3px 7px; border-radius: 6px; background: var(--slb-line-soft); border: 1px solid var(--slb-line); color: var(--slb-text); }
.slb-tier .trec { margin-top: 9px; font-size: 11.5px; color: var(--slb-ok); font-weight: 600; }
:root[data-theme="dark"] .slb-tier .trec { color: #6ee7b7; }

/* ---------- KPI ---------- */
.slb-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(168px, 1fr)); gap: 12px; }
.slb-stats.is-quick { margin-top: 4px; }

.slb-stat {
    padding: 14px 15px;
    border-radius: 14px;
    background: var(--slb-paper);
    border: 1px solid var(--slb-line);
    min-width: 0;
}

.slb-stat .lb { font-size: 12px; color: var(--slb-faint); }
.slb-stat .nm { font-family: var(--slb-mono); font-size: 22px; font-weight: 800; color: var(--slb-text); line-height: 1.35; letter-spacing: -.4px; }
.slb-stat .nm em { font-style: normal; font-size: 12px; margin-left: 3px; color: var(--slb-faint); font-weight: 600; }
.slb-stat .sb { font-size: 11.5px; color: var(--slb-faint); margin-top: 3px; line-height: 1.55; }
.slb-stat.is-key { background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%); border-color: transparent; }
.slb-stat.is-key .lb { color: rgba(255, 255, 255, .78); }
.slb-stat.is-key .nm { color: #fff; }
.slb-stat.is-key .nm em { color: rgba(255, 255, 255, .8); }
.slb-stat.is-key .sb { color: rgba(255, 255, 255, .8); }
.slb-stat.is-warn { background: rgba(250, 204, 21, .14); border-color: rgba(250, 204, 21, .4); }
.slb-stat.is-warn .nm { color: #b45309; }
.slb-stat.is-danger { background: rgba(248, 113, 113, .12); border-color: rgba(248, 113, 113, .34); }
.slb-stat.is-danger .nm { color: #b91c1c; }
:root[data-theme="dark"] .slb-stat.is-warn .nm { color: #fde047; }
:root[data-theme="dark"] .slb-stat.is-danger .nm { color: #fca5a5; }

/* ---------- 成本拆解条 ---------- */
.slb-break { margin-top: 18px; display: flex; flex-direction: column; gap: 10px; }

.slb-break-row {
    display: grid;
    grid-template-columns: 138px minmax(0, 1fr) 100px;
    align-items: center;
    gap: 12px;
    padding: 9px 12px;
    border-radius: 11px;
    background: var(--slb-paper);
    border: 1px solid var(--slb-line);
    font-size: 13px;
}

.slb-break-row .bl { color: var(--slb-text); font-weight: 600; }
.slb-break-row .bt { height: 9px; border-radius: 999px; background: var(--slb-line-soft); overflow: hidden; }
.slb-break-row .bb { height: 100%; border-radius: 999px; background: linear-gradient(90deg, #22d3ee, #4f46e5); }
.slb-break-row.is-cost .bb { background: linear-gradient(90deg, #fb923c, #f59e0b); }
.slb-break-row.is-back .bb { background: linear-gradient(90deg, #34d399, #059669); }
.slb-break-row .bv { font-family: var(--slb-mono); font-weight: 700; text-align: right; color: var(--slb-text); }
.slb-break-row.is-cost .bv { color: #b45309; }
.slb-break-row.is-back .bv { color: #047857; }
:root[data-theme="dark"] .slb-break-row.is-cost .bv { color: #fcd34d; }
:root[data-theme="dark"] .slb-break-row.is-back .bv { color: #6ee7b7; }

/* ---------- 风险 ---------- */
.slb-risks { display: grid; grid-template-columns: repeat(auto-fit, minmax(272px, 1fr)); gap: 12px; }

.slb-risk {
    padding: 13px 15px;
    border-radius: 13px;
    border: 1px solid var(--slb-line);
    background: var(--slb-paper);
    border-left-width: 4px;
}

.slb-risk.is-danger { border-left-color: var(--slb-bad); background: rgba(248, 113, 113, .09); }
.slb-risk.is-warn { border-left-color: #f59e0b; background: rgba(250, 204, 21, .1); }
.slb-risk.is-safe { border-left-color: var(--slb-ok); background: rgba(16, 185, 129, .09); }
.slb-risk .rt { font-size: 13.5px; font-weight: 700; color: var(--slb-text); display: flex; align-items: center; gap: 7px; }
.slb-risk .rt i { font-style: normal; font-size: 14px; }
.slb-risk .rb { margin-top: 6px; font-size: 12.5px; line-height: 1.75; color: var(--slb-faint); }
.slb-risk .rb b { color: var(--slb-text); }

/* ---------- 工具条 / 按钮 ---------- */
.slb-toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.slb-toolbar .slb-input { width: 240px; }
.slb-actions { display: flex; flex-wrap: wrap; gap: 10px; }

.slb-btn {
    font-family: inherit;
    font-size: 13.5px;
    font-weight: 700;
    padding: 10px 17px;
    border-radius: 10px;
    border: 1px solid var(--slb-line);
    background: var(--slb-paper);
    color: var(--slb-indigo);
    cursor: pointer;
    transition: all .18s;
}

.slb-btn:hover { transform: translateY(-1px); border-color: var(--slb-indigo); }
.slb-btn--primary { background: linear-gradient(135deg, var(--slb-indigo), var(--slb-violet)); border-color: transparent; color: #fff; }
.slb-btn--ghost { background: transparent; color: var(--slb-faint); }
.slb-btn--neon { background: #22d3ee; border-color: transparent; color: #06283a; height: 40px; white-space: nowrap; }
.slb-btn--neon:hover { background: #67e8f9; }

/* ---------- 表格 ---------- */
.slb-table-wrap { margin-top: 14px; overflow-x: auto; border: 1px solid var(--slb-line); border-radius: 14px; }
.slb-table { width: 100%; border-collapse: collapse; min-width: 760px; font-size: 13px; }
.slb-table th { text-align: left; padding: 11px 13px; background: var(--slb-line-soft); color: var(--slb-indigo); font-weight: 700; white-space: nowrap; border-bottom: 1px solid var(--slb-line); }
.slb-table td { padding: 10px 13px; border-bottom: 1px solid var(--slb-line); color: var(--slb-text); white-space: nowrap; }
.slb-table tr:last-child td { border-bottom: 0; }
.slb-table tbody tr:hover { background: var(--slb-line-soft); }
.slb-table .num { font-family: var(--slb-mono); font-weight: 700; }
.slb-table tr.is-best td { background: rgba(52, 211, 153, .12); }
.slb-op { width: 62px; }

.slb-del {
    font-family: inherit;
    font-size: 12px;
    padding: 4px 9px;
    border-radius: 7px;
    border: 1px solid var(--slb-line);
    background: transparent;
    color: var(--slb-faint);
    cursor: pointer;
}
.slb-del:hover { border-color: var(--slb-bad); color: var(--slb-bad); }

.slb-empty { margin: 12px 0 0; font-size: 12.5px; color: var(--slb-faint); }

/* ---------- 批量 / 文本 ---------- */
.slb-bulk {
    width: 100%;
    min-height: 120px;
    border-radius: 12px;
    border: 1px solid var(--slb-line);
    background: var(--slb-paper);
    color: var(--slb-text);
    padding: 12px 13px;
    font-family: var(--slb-mono);
    font-size: 12.5px;
    line-height: 1.8;
    resize: vertical;
}

.slb-bulk:focus { outline: none; border-color: var(--slb-indigo); box-shadow: 0 0 0 3px var(--slb-line-soft); }

.slb-pre {
    margin: 0;
    padding: 14px 15px;
    border-radius: 12px;
    background: var(--slb-paper);
    border: 1px solid var(--slb-line);
    font-family: var(--slb-mono);
    font-size: 12px;
    line-height: 1.85;
    color: var(--slb-text);
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 320px;
    overflow: auto;
}

/* ---------- FAQ ---------- */
.slb-faq { display: flex; flex-direction: column; gap: 10px; }
.slb-faq-item { border: 1px solid var(--slb-line); border-radius: 12px; background: var(--slb-paper); overflow: hidden; }
.slb-faq-item summary { cursor: pointer; padding: 12px 15px; font-size: 14px; font-weight: 700; color: var(--slb-text); list-style: none; position: relative; padding-right: 34px; }
.slb-faq-item summary::-webkit-details-marker { display: none; }
.slb-faq-item summary::after { content: "＋"; position: absolute; right: 14px; top: 11px; color: var(--slb-indigo); font-weight: 800; }
.slb-faq-item[open] summary::after { content: "－"; }
.slb-faq-a { padding: 0 15px 14px; font-size: 13px; line-height: 1.9; color: var(--slb-faint); }
.slb-faq-a b { color: var(--slb-text); }

.slb-comments { margin-top: 22px; }

/* ---------- Toast ---------- */
.slb-toast {
    position: fixed;
    left: 50%;
    bottom: 32px;
    transform: translateX(-50%) translateY(20px);
    background: #141a3a;
    color: #fff;
    font-size: 13.5px;
    padding: 11px 20px;
    border-radius: 12px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, .3);
    opacity: 0;
    pointer-events: none;
    transition: all .24s;
    z-index: 9999;
}

.slb-toast.on { opacity: 1; transform: translateX(-50%) translateY(0); }
:root[data-theme="dark"] .slb-toast { background: #1e2450; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
    .slb-hero { grid-template-columns: minmax(0, 1fr); }
    .slb-spec { max-width: 460px; }
}

@media (max-width: 900px) {
    .slb-cols { grid-template-columns: minmax(0, 1fr); gap: 18px; }
    .slb-hero { padding: 24px 20px 22px; }
    .slb-hero h1 { font-size: 26px; }
    .slb-quick-row { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
    .slb-quick-row .slb-btn { width: 100%; }
    .slb-panel { padding: 20px 17px 22px; }
    .slb-break-row { grid-template-columns: 108px minmax(0, 1fr) 86px; font-size: 12.5px; }
}

@media (max-width: 560px) {
    .slb-hero h1 { font-size: 23px; }
    .slb-lead { font-size: 13.5px; line-height: 1.8; }
    .slb-spec-tier { font-size: 22px; }
    .slb-break-row { grid-template-columns: minmax(0, 1fr) 80px; grid-template-areas: "l v" "t t"; }
    .slb-break-row .bl { grid-area: l; }
    .slb-break-row .bv { grid-area: v; }
    .slb-break-row .bt { grid-area: t; }
    .slb-toolbar .slb-input { width: 100%; }
}

.slb-page, .slb-sheet { min-width: 0; }
.slb-hero *, .slb-panel * { box-sizing: border-box; }

/* ---------- 打印稿 ---------- */
.slb-sheet { display: none; }

@media print {
    @page { size: A4; margin: 12mm; }

    body * { visibility: hidden !important; }
    .slb-sheet, .slb-sheet * { visibility: visible !important; }
    .slb-sheet {
        display: block !important;
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        font-family: "Songti SC", "Microsoft YaHei", sans-serif;
        color: #000;
        background: #fff;
    }

    .slb-print { border: 1px solid #333; border-radius: 6px; padding: 6mm; font-size: 12px; line-height: 1.7; }
    .slb-print h2 { font-size: 17px; margin: 0 0 2mm; text-align: center; }
    .slb-print .sub { text-align: center; font-size: 11px; color: #444; margin-bottom: 4mm; }
    .slb-print h3 { font-size: 13px; margin: 4mm 0 2mm; border-left: 3px solid #000; padding-left: 2mm; }
    .slb-print table { width: 100%; border-collapse: collapse; font-size: 11.5px; }
    .slb-print th, .slb-print td { border: 1px solid #555; padding: 1.6mm 2mm; text-align: left; }
    .slb-print th { background: #eee; }
    .slb-print .note { margin-top: 3mm; font-size: 11px; color: #333; line-height: 1.7; }
    .slb-print .sign { margin-top: 6mm; display: flex; justify-content: space-between; font-size: 11.5px; }
}