/* ============================================================
   constructor-2-plan · 二级建造师备考规划
   脚手架钢筋风（c2-）：钢灰底 + 钢筋交叉网格 + 安全橙警示斜纹
   + 卡扣/节点圆点装饰；比蓝图风(95)更灰冷，橙色警示条为主角
   ============================================================ */
.c2-page {
    --c2-bg: #e6e8ec;
    --c2-panel: #f7f8fa;
    --c2-panel2: #eceef2;
    --c2-ink: #23282f;
    --c2-sub: #5c6570;
    --c2-line: #c6ccd4;
    --c2-line-strong: #9aa4b0;
    --c2-accent: #f26a1b;
    --c2-accent-deep: #c94f0c;
    --c2-accent-soft: rgba(242, 106, 27, 0.12);
    --c2-accent2: #3d5a73;
    --c2-accent2-soft: rgba(61, 90, 115, 0.12);
    --c2-steel: #7d8794;
    --c2-ok: #3f7d5a;
    --c2-bad: #b3402e;
    --c2-shadow: 0 6px 20px rgba(35, 40, 47, 0.10);

    color: var(--c2-ink);
    font-size: 15px;
    line-height: 1.75;
}

[data-theme="dark"] .c2-page {
    --c2-bg: #14171b;
    --c2-panel: #1d2127;
    --c2-panel2: #232830;
    --c2-ink: #e7ebf0;
    --c2-sub: #97a1ad;
    --c2-line: #343b44;
    --c2-line-strong: #4d5661;
    --c2-accent: #ff8b3d;
    --c2-accent-deep: #ffa15c;
    --c2-accent-soft: rgba(255, 139, 61, 0.14);
    --c2-accent2: #86a9c7;
    --c2-accent2-soft: rgba(134, 169, 199, 0.14);
    --c2-steel: #6b7480;
    --c2-ok: #6fbf94;
    --c2-bad: #e07a63;
    --c2-shadow: 0 6px 20px rgba(0, 0, 0, 0.45);
}

.c2-page h1, .c2-page h2, .c2-page h3 { line-height: 1.4; }
.c2-page b, .c2-page strong { color: var(--c2-accent-deep); }

/* ---------- 首屏：钢筋网格 + 脚手架 ---------- */
.c2-hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(170px, 0.6fr) minmax(240px, 0.85fr);
    gap: 22px 26px;
    align-items: center;
    padding: 30px 32px 26px;
    margin-bottom: 24px;
    border-radius: 16px;
    border: 1px solid var(--c2-line-strong);
    background: linear-gradient(180deg, var(--c2-panel2) 0%, var(--c2-panel) 100%);
    box-shadow: var(--c2-shadow);
    overflow: hidden;
}
/* 钢筋交叉网格底纹 */
.c2-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(0deg, var(--c2-line) 0 1px, transparent 1px 26px),
        repeating-linear-gradient(90deg, var(--c2-line) 0 1px, transparent 1px 26px);
    opacity: 0.45;
    pointer-events: none;
}
/* 顶部安全橙警示条 */
.c2-hero::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: repeating-linear-gradient(-45deg, var(--c2-accent) 0 12px, var(--c2-ink) 12px 24px);
    clip-path: polygon(0 0, 100% 0, calc(100% - 18px) 100%, 0 100%);
    opacity: 0.9;
    pointer-events: none;
}
.c2-hero > * { position: relative; z-index: 1; }

.c2-kicker {
    display: inline-block;
    padding: 5px 14px;
    margin-bottom: 12px;
    border-radius: 4px;
    background: var(--c2-accent);
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.18em;
}
.c2-hero h1 { margin: 0 0 10px; font-size: clamp(25px, 3.2vw, 36px); font-weight: 900; }
.c2-hero-sub { margin: 0 0 14px; max-width: 56ch; color: var(--c2-sub); font-size: 15px; }
.c2-hero-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.c2-hero-chips li {
    padding: 5px 13px;
    border-radius: 4px;
    border: 1px solid var(--c2-line-strong);
    background: var(--c2-panel);
    color: var(--c2-sub);
    font-size: 12px;
    font-weight: 700;
}

/* hero 脚手架装饰 */
.c2-hero-rig { display: grid; justify-items: center; gap: 12px; }
.c2-rig {
    position: relative;
    width: 150px;
    height: 168px;
    margin-top: 10px;
    border: 3px solid var(--c2-steel);
    border-radius: 4px;
    background:
        repeating-linear-gradient(0deg, var(--c2-accent2-soft) 0 1px, transparent 1px 20px),
        repeating-linear-gradient(90deg, var(--c2-accent2-soft) 0 1px, transparent 1px 20px);
    box-shadow: 0 10px 22px rgba(35, 40, 47, 0.22);
}
.c2-rig-post {
    position: absolute;
    top: -8px;
    bottom: -8px;
    width: 7px;
    border-radius: 3px;
    background: linear-gradient(180deg, var(--c2-steel), var(--c2-accent2));
}
.c2-rig-post--l { left: 14px; }
.c2-rig-post--r { right: 14px; }
.c2-rig-ledger {
    position: absolute;
    left: 4px;
    right: 4px;
    height: 6px;
    border-radius: 3px;
    background: var(--c2-steel);
}
.c2-rig-ledger--1 { top: 26px; }
.c2-rig-ledger--2 { top: 82px; background: var(--c2-accent); }
.c2-rig-ledger--3 { bottom: 26px; }
.c2-rig-brace {
    position: absolute;
    left: 18px;
    top: 30px;
    width: 6px;
    height: 118px;
    border-radius: 3px;
    background: repeating-linear-gradient(-45deg, var(--c2-steel) 0 6px, var(--c2-line-strong) 6px 12px);
    transform: rotate(38deg);
    transform-origin: top left;
}
/* 卡扣节点圆点 */
.c2-rig-node {
    position: absolute;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--c2-accent);
    border: 3px solid var(--c2-panel);
    box-shadow: 0 0 0 2px var(--c2-accent);
}
.c2-rig-node--1 { left: 10px; top: 22px; }
.c2-rig-node--2 { right: 10px; top: 22px; }
.c2-rig-node--3 { left: 10px; bottom: 22px; }
.c2-rig-node--4 { right: 10px; bottom: 22px; }
.c2-rig-stripe {
    padding: 5px 16px;
    background: repeating-linear-gradient(-45deg, var(--c2-accent) 0 10px, #2b2f36 10px 20px);
    color: #fff;
    font-size: 11.5px;
    font-weight: 900;
    letter-spacing: 0.14em;
    clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.55);
    white-space: nowrap;
}

/* hero 读数 */
.c2-hero-readout, .c2-verdict {
    padding: 18px 20px;
    border-radius: 12px;
    border: 1px solid var(--c2-line-strong);
    background: var(--c2-panel);
    display: grid;
    gap: 4px;
    justify-items: start;
    box-shadow: var(--c2-shadow);
}
.c2-hero-readout { position: relative; z-index: 1; }
.c2-readout-label, .c2-verdict-tag {
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.18em;
    color: var(--c2-sub);
}
.c2-readout-num {
    font-size: 25px;
    font-weight: 900;
    color: var(--c2-accent-deep);
    font-variant-numeric: tabular-nums;
    line-height: 1.3;
}
.c2-readout-meta { font-size: 13px; font-weight: 700; color: var(--c2-accent2); }
.c2-readout-tip { margin-top: 4px; font-size: 12px; color: var(--c2-sub); opacity: 0.9; }

/* ---------- 测算区两栏 ---------- */
.c2-calc {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(290px, 1fr);
    gap: 20px;
    align-items: start;
    margin-bottom: 28px;
}
.c2-input-col { display: grid; gap: 16px; min-width: 0; }

.c2-panel {
    padding: 20px 22px;
    border: 1px solid var(--c2-line);
    border-radius: 14px;
    background: var(--c2-panel);
    box-shadow: var(--c2-shadow);
}
.c2-panel-head { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.c2-panel-head h2 { margin: 0; font-size: 18px; font-weight: 800; }
.c2-panel-head p { margin: 2px 0 0; font-size: 13px; color: var(--c2-sub); }
.c2-step {
    flex-shrink: 0;
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: var(--c2-accent);
    color: #fff;
    font-size: 15px;
    font-weight: 900;
    box-shadow: inset 0 -3px 0 rgba(0, 0, 0, 0.18);
}

/* 字段 */
.c2-grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.c2-field { display: grid; gap: 6px; }
.c2-label { font-size: 13px; font-weight: 700; }
.c2-select-wrap { position: relative; display: block; }
.c2-select-wrap::after {
    content: "▾";
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--c2-sub);
    pointer-events: none;
    font-size: 12px;
}
.c2-input {
    width: 100%;
    height: 44px;
    padding: 0 30px 0 12px;
    border: 1.5px solid var(--c2-line-strong);
    border-radius: 8px;
    background: var(--c2-panel2);
    color: var(--c2-ink);
    font-size: 14px;
    font-weight: 700;
    outline: none;
    appearance: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.c2-input--plain { padding-right: 12px; }
.c2-input:focus { border-color: var(--c2-accent); box-shadow: 0 0 0 3px var(--c2-accent-soft); }
.c2-hint { margin: 12px 0 0; font-size: 12.5px; color: var(--c2-sub); }

/* 三科学时标签 */
.c2-subjs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.c2-subj {
    padding: 6px 12px;
    border-radius: 4px;
    border: 1px dashed var(--c2-line-strong);
    background: var(--c2-panel2);
    color: var(--c2-sub);
    font-size: 12.5px;
    font-weight: 600;
}
.c2-subj b { font-size: 13px; }

/* 错误盒 + 按钮 */
.c2-error {
    padding: 10px 14px;
    border-radius: 8px;
    border: 1px solid rgba(179, 64, 46, 0.45);
    background: rgba(179, 64, 46, 0.10);
    color: var(--c2-bad);
    font-size: 13px;
}
.c2-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.c2-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 44px;
    padding: 0 20px;
    border: 1.5px solid var(--c2-line-strong);
    border-radius: 8px;
    background: var(--c2-panel2);
    color: var(--c2-ink);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.12s, box-shadow 0.12s;
}
.c2-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 10px rgba(35, 40, 47, 0.18); }
.c2-btn--primary {
    border-color: var(--c2-accent-deep);
    background: linear-gradient(170deg, var(--c2-accent) 0%, var(--c2-accent-deep) 100%);
    color: #fff;
}

/* 结果列 */
.c2-result-col { display: grid; gap: 14px; position: sticky; top: 16px; }

/* 判定卡 */
.c2-verdict { border-left: 6px solid var(--c2-steel); transition: border-color 0.2s; }
.c2-verdict.is-pass { border-left-color: var(--c2-ok); }
.c2-verdict.is-warn { border-left-color: var(--c2-accent); }
.c2-verdict.is-fail { border-left-color: var(--c2-bad); }
.c2-verdict-tag {
    padding: 3px 12px;
    border-radius: 4px;
    background: var(--c2-panel2);
    letter-spacing: 0.08em;
}
.c2-verdict.is-pass .c2-verdict-tag { background: var(--c2-ok); color: #fff; }
.c2-verdict.is-warn .c2-verdict-tag { background: var(--c2-accent); color: #fff; }
.c2-verdict.is-fail .c2-verdict-tag { background: var(--c2-bad); color: #fff; }
.c2-verdict-title { font-size: 19px; font-weight: 900; line-height: 1.35; }
.c2-verdict.is-pass .c2-verdict-title { color: var(--c2-ok); }
.c2-verdict.is-warn .c2-verdict-title { color: var(--c2-accent-deep); }
.c2-verdict.is-fail .c2-verdict-title { color: var(--c2-bad); }
.c2-verdict-list { margin: 6px 0 0; padding: 0; list-style: none; display: grid; gap: 5px; }
.c2-verdict-list li { font-size: 13px; color: var(--c2-sub); padding-left: 20px; position: relative; }
.c2-verdict-list li::before { content: "◦"; position: absolute; left: 4px; font-weight: 900; color: var(--c2-steel); }
.c2-verdict-list li.is-ok::before { content: "✓"; color: var(--c2-ok); }
.c2-verdict-list li.is-warn::before { content: "!"; color: var(--c2-accent); font-weight: 900; }
.c2-verdict-list li.is-bad::before { content: "✕"; color: var(--c2-bad); font-weight: 900; }
.c2-verdict-note { margin: 8px 0 0; font-size: 12.5px; color: var(--c2-sub); border-top: 1px dashed var(--c2-line); padding-top: 8px; }
.c2-verdict-foot { margin: 6px 0 0; font-size: 12px; color: var(--c2-accent-deep); font-weight: 700; }

/* KPI */
.c2-kpis { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.c2-kpi {
    padding: 12px 14px;
    border: 1px solid var(--c2-line);
    border-radius: 10px;
    background: var(--c2-panel);
    display: grid;
    gap: 2px;
}
.c2-kpi span { font-size: 12px; color: var(--c2-sub); font-weight: 700; }
.c2-kpi b { font-size: 19px; font-weight: 900; color: var(--c2-ink); line-height: 1.25; font-variant-numeric: tabular-nums; }
.c2-kpi small { font-size: 11px; color: var(--c2-sub); }

.c2-mini-card {
    padding: 16px 18px;
    border: 1px solid var(--c2-line);
    border-radius: 12px;
    background: var(--c2-panel);
}
.c2-mini-card h3 { margin: 0 0 10px; font-size: 15px; font-weight: 800; color: var(--c2-accent-deep); }

.c2-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.c2-table th, .c2-table td {
    padding: 8px 10px;
    text-align: left;
    border-bottom: 1px dashed var(--c2-line);
    vertical-align: top;
}
.c2-table th { font-size: 12px; font-weight: 800; color: var(--c2-sub); letter-spacing: 0.06em; white-space: nowrap; }
.c2-table td { font-variant-numeric: tabular-nums; }
.c2-table tr:last-child td { border-bottom: none; }
.c2-table--wide th, .c2-table--wide td { padding: 10px 12px; }
.c2-table-wrap { overflow-x: auto; }
.c2-empty { text-align: center; color: var(--c2-sub); padding: 14px 0 !important; }
.c2-table-note { margin: 10px 0 0; font-size: 12px; color: var(--c2-sub); }
.c2-roll-tip {
    margin: 10px 0 0;
    padding: 9px 12px;
    border-radius: 8px;
    border: 1px solid var(--c2-accent);
    background: var(--c2-accent-soft);
    color: var(--c2-accent-deep);
    font-size: 12.5px;
}

/* ---------- 通用 section ---------- */
.c2-section { margin-bottom: 28px; }
.c2-sec-head { margin-bottom: 14px; }
.c2-sec-head h2 { margin: 0 0 4px; font-size: 21px; font-weight: 900; }
.c2-sec-head p { margin: 0; font-size: 13.5px; color: var(--c2-sub); }

/* 对比表下的衔接卡 */
.c2-bridge { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 14px; }
.c2-bridge-card {
    padding: 14px 16px;
    border-radius: 10px;
    border: 1px solid var(--c2-line);
    background: var(--c2-panel2);
}
.c2-bridge-card b { display: block; font-size: 14.5px; color: var(--c2-accent2); margin-bottom: 4px; }
.c2-bridge-card p { margin: 0; font-size: 13px; color: var(--c2-sub); }

/* 挂靠风险 */
.c2-dangers { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-bottom: 14px; }
.c2-danger {
    position: relative;
    padding: 20px 20px 16px;
    border: 1px solid var(--c2-line);
    border-radius: 12px;
    background: var(--c2-panel);
    box-shadow: var(--c2-shadow);
    overflow: hidden;
}
.c2-danger-stripe {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 8px;
    background: repeating-linear-gradient(-45deg, var(--c2-accent) 0 12px, var(--c2-ink) 12px 24px);
    clip-path: polygon(0 0, 100% 0, calc(100% - 16px) 100%, 0 100%);
}
.c2-danger h3 { margin: 4px 0 6px; font-size: 15.5px; font-weight: 800; }
.c2-danger p { margin: 0; font-size: 13px; color: var(--c2-sub); }

.c2-legal {
    padding: 18px 20px;
    border-radius: 12px;
    border: 1px solid var(--c2-ok);
    background: var(--c2-panel);
}
.c2-legal-head {
    display: inline-block;
    margin-bottom: 10px;
    padding: 4px 14px;
    border-radius: 4px;
    background: var(--c2-ok);
    color: #fff;
    font-size: 13.5px;
    font-weight: 900;
    letter-spacing: 0.08em;
}
.c2-legal-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.c2-legal-list li { font-size: 13.5px; color: var(--c2-sub); padding-left: 20px; position: relative; }
.c2-legal-list li::before { content: "✓"; position: absolute; left: 2px; font-weight: 900; color: var(--c2-ok); }

/* 实务专业 */
.c2-specs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.c2-spec {
    padding: 16px 16px 14px;
    border: 1px solid var(--c2-line);
    border-radius: 12px;
    background: var(--c2-panel);
    box-shadow: var(--c2-shadow);
    display: grid;
    gap: 6px;
    align-content: start;
    position: relative;
}
.c2-spec::after {
    content: "";
    position: absolute;
    top: 12px;
    right: 12px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--c2-accent);
    box-shadow: 0 0 0 3px var(--c2-accent-soft);
}
.c2-spec-ico { font-size: 24px; line-height: 1; }
.c2-spec h3 { margin: 0; font-size: 15px; font-weight: 800; padding-right: 18px; }
.c2-spec-stars { margin: 0; font-size: 12px; font-weight: 800; color: var(--c2-accent2); letter-spacing: 0.04em; }
.c2-spec p:not(.c2-spec-stars) { margin: 0; font-size: 12.5px; color: var(--c2-sub); line-height: 1.7; }

/* 考试节奏时间轴 */
.c2-timeline {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    position: relative;
}
.c2-timeline::before {
    content: "";
    position: absolute;
    top: 19px;
    left: 4%;
    right: 4%;
    height: 3px;
    background: repeating-linear-gradient(90deg, var(--c2-steel) 0 14px, transparent 14px 22px);
}
.c2-tl-item {
    position: relative;
    padding: 34px 14px 14px;
    border: 1px solid var(--c2-line);
    border-radius: 10px;
    background: var(--c2-panel);
}
.c2-tl-dot {
    position: absolute;
    top: 12px;
    left: 14px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--c2-accent);
    border: 3px solid var(--c2-panel);
    box-shadow: 0 0 0 2px var(--c2-accent);
}
.c2-tl-item b { display: block; font-size: 14px; color: var(--c2-accent-deep); margin-bottom: 4px; }
.c2-tl-item p { margin: 0; font-size: 12.5px; color: var(--c2-sub); }

/* FAQ */
.c2-faq { display: grid; gap: 10px; }
.c2-faq .faq-item {
    border: 1px solid var(--c2-line);
    border-radius: 12px;
    background: var(--c2-panel);
    overflow: hidden;
}
.c2-faq .faq-item summary {
    padding: 13px 16px;
    font-size: 14.5px;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
    position: relative;
}
.c2-faq .faq-item summary::-webkit-details-marker { display: none; }
.c2-faq .faq-item summary::after {
    content: "+";
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--c2-accent);
    font-weight: 900;
    font-size: 16px;
}
.c2-faq .faq-item[open] summary::after { content: "−"; }
.c2-faq .faq-a { padding: 0 16px 13px; font-size: 13.5px; color: var(--c2-sub); }

/* 留言 */
.c2-comments { margin-bottom: 30px; }

/* 返回顶部 */
.c2-top {
    position: fixed;
    right: 22px;
    bottom: 26px;
    width: 44px;
    height: 44px;
    border-radius: 8px;
    border: 1.5px solid var(--c2-line-strong);
    background: var(--c2-panel);
    color: var(--c2-accent-deep);
    font-size: 18px;
    font-weight: 900;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all 0.25s;
    box-shadow: var(--c2-shadow);
    z-index: 50;
}
.c2-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.c2-top:hover { background: var(--c2-accent); color: #fff; }

/* toast */
.c2-toast {
    position: fixed;
    left: 50%;
    bottom: 90px;
    transform: translateX(-50%) translateY(10px);
    padding: 10px 20px;
    border-radius: 4px;
    background: var(--c2-accent-deep);
    color: #fff;
    font-size: 13.5px;
    font-weight: 700;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s;
    z-index: 60;
}
.c2-toast.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
    .c2-hero { grid-template-columns: minmax(0, 1.5fr) minmax(230px, 0.8fr); }
    .c2-hero-rig { display: none; }
    .c2-calc { grid-template-columns: 1fr; }
    .c2-result-col { position: static; }
    .c2-specs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .c2-timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .c2-timeline::before { display: none; }
}

@media (max-width: 720px) {
    .c2-hero { grid-template-columns: 1fr; padding: 24px 20px 20px; }
    .c2-panel { padding: 16px 16px; }
    .c2-grid2, .c2-kpis, .c2-dangers, .c2-bridge, .c2-specs, .c2-timeline { grid-template-columns: 1fr; }
    .c2-actions { display: grid; grid-template-columns: 1fr; }
    .c2-actions .c2-btn { width: 100%; }
    .c2-sec-head h2 { font-size: 18px; }
    .c2-table--wide { font-size: 12.5px; }
    .c2-table--wide th, .c2-table--wide td { padding: 8px 8px; }
    .c2-top { right: 14px; bottom: 18px; }
}