/*!
 * 水彩纸选纸台 · watercolor-paper-guide
 * 独立设计系统「画室颜料卡」：冷白纸底 + 群青 + 水彩玫红 + 藤黄
 * 版式：颜料晕染首屏 / 左窄参数台 / 右宽选纸单 / 纹理与厚度剖面
 * 深浅主题跟随导航 #themeToggle（auto / light / dark），页面不设独立开关。
 * 浮层（modal / sheet / toast）与根元素共享同一套变量作用域。
 */

.wcp-page, .wcp-modal, .wcp-sheet, .wcp-toast {
    --wcp-bg: #fbf9f4;
    --wcp-bg2: #f2eee4;
    --wcp-card: #fffefb;
    --wcp-card2: #f7f3e9;
    --wcp-line: #e2dccd;
    --wcp-line2: #cfc6b2;
    --wcp-ink: #2a2f3a;
    --wcp-ink2: #59616f;
    --wcp-ink3: #8d94a0;
    --wcp-blue: #2b4c8c;
    --wcp-blue-soft: rgba(43, 76, 140, .09);
    --wcp-rose: #d4547a;
    --wcp-rose-soft: rgba(212, 84, 122, .12);
    --wcp-gold: #b8862a;
    --wcp-gold-soft: rgba(184, 134, 42, .13);
    --wcp-shadow: 0 22px 48px -32px rgba(42, 47, 58, .55);
    --wcp-shadow-s: 0 10px 24px -18px rgba(42, 47, 58, .5);
    --wcp-r: 16px;
    --wcp-serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", Georgia, serif;
    --wcp-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    --wcp-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

:root[data-theme="dark"] .wcp-page,
:root[data-theme="dark"] .wcp-modal,
:root[data-theme="dark"] .wcp-sheet,
:root[data-theme="dark"] .wcp-toast {
    --wcp-bg: #141a24;
    --wcp-bg2: #10151e;
    --wcp-card: #1b2331;
    --wcp-card2: #212b3a;
    --wcp-line: #2e3a4d;
    --wcp-line2: #3e4c61;
    --wcp-ink: #eaf0fa;
    --wcp-ink2: #b3bfd0;
    --wcp-ink3: #8492a6;
    --wcp-blue: #86aaff;
    --wcp-blue-soft: rgba(134, 170, 255, .14);
    --wcp-rose: #ff96b7;
    --wcp-rose-soft: rgba(255, 150, 183, .15);
    --wcp-gold: #f0c46a;
    --wcp-gold-soft: rgba(240, 196, 106, .15);
    --wcp-shadow: 0 22px 48px -30px rgba(0, 0, 0, .85);
    --wcp-shadow-s: 0 10px 24px -16px rgba(0, 0, 0, .75);
}

.wcp-page {
    background:
        radial-gradient(900px 420px at 8% -6%, var(--wcp-blue-soft), transparent 62%),
        radial-gradient(720px 380px at 102% 8%, var(--wcp-rose-soft), transparent 60%),
        var(--wcp-bg);
    color: var(--wcp-ink);
    font-family: var(--wcp-sans);
    font-size: 15px;
    line-height: 1.85;
    min-height: 60vh;
}
.wcp-page *, .wcp-page *::before, .wcp-page *::after,
.wcp-modal *, .wcp-sheet * { box-sizing: border-box; }
.wcp-page b, .wcp-page strong { color: var(--wcp-blue); font-weight: 800; }
.wcp-wrap { max-width: 1180px; margin: 0 auto; padding: 20px 16px 12px; }

/* ---------- 面包屑 ---------- */
.wcp-page .detail-breadcrumb { margin: 0 0 16px; font-size: 13px; color: var(--wcp-ink2); }
.wcp-page .detail-breadcrumb a { color: var(--wcp-blue); text-decoration: none; }
.wcp-page .detail-breadcrumb a:hover { text-decoration: underline; }
.wcp-page .detail-breadcrumb .sep { margin: 0 8px; color: var(--wcp-ink3); }

/* ---------- 首屏 ---------- */
.wcp-hero {
    display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(0, .82fr);
    gap: 24px; align-items: stretch;
    padding: 28px 30px 24px; border-radius: 22px;
    background: linear-gradient(155deg, var(--wcp-card) 0%, var(--wcp-card2) 100%);
    border: 1.5px solid var(--wcp-line); box-shadow: var(--wcp-shadow);
    position: relative; overflow: hidden;
}
.wcp-hero::after {
    content: ''; position: absolute; right: -70px; top: -90px; width: 260px; height: 260px;
    border-radius: 50%; background: radial-gradient(circle, var(--wcp-gold-soft), transparent 68%);
    pointer-events: none;
}
.wcp-hero-main { position: relative; z-index: 1; min-width: 0; }
.wcp-kicker {
    display: inline-block; padding: 3px 12px; border-radius: 999px;
    font-size: 12px; font-weight: 800; letter-spacing: .08em;
    color: var(--wcp-blue); background: var(--wcp-blue-soft);
    border: 1px solid var(--wcp-line);
}
.wcp-hero h1 {
    font-family: var(--wcp-serif); font-weight: 800;
    font-size: clamp(27px, 3.3vw, 39px); line-height: 1.32;
    margin: 14px 0 8px; letter-spacing: .01em; color: var(--wcp-ink);
}
.wcp-sub { margin: 0; font-size: 15px; line-height: 1.9; color: var(--wcp-ink2); max-width: 620px; }
.wcp-sub b { color: var(--wcp-rose); }
.wcp-splash { display: flex; gap: 0; margin: 16px 0 6px; height: 30px; align-items: center; }
.wcp-splash i { display: block; width: 42px; height: 30px; border-radius: 50%; margin-right: -12px; mix-blend-mode: multiply; opacity: .85; }
.wcp-splash i:nth-child(1) { background: radial-gradient(circle at 40% 40%, var(--wcp-blue), transparent 72%); }
.wcp-splash i:nth-child(2) { background: radial-gradient(circle at 50% 50%, var(--wcp-rose), transparent 72%); }
.wcp-splash i:nth-child(3) { background: radial-gradient(circle at 60% 45%, var(--wcp-gold), transparent 72%); }
:root[data-theme="dark"] .wcp-splash i { mix-blend-mode: screen; opacity: .6; }
.wcp-hero-metrics { display: flex; gap: 10px; margin: 10px 0 16px; flex-wrap: wrap; }
.wcp-hero-metrics > div {
    flex: 1 1 120px; padding: 10px 14px; border-radius: 12px;
    background: var(--wcp-card); border: 1px solid var(--wcp-line); box-shadow: var(--wcp-shadow-s);
}
.wcp-hero-metrics b { display: block; font-family: var(--wcp-mono); font-size: 22px; line-height: 1.3; color: var(--wcp-blue); }
.wcp-hero-metrics span { font-size: 12px; color: var(--wcp-ink3); }
.wcp-quick { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.wcp-quick > span { font-size: 12.5px; color: var(--wcp-ink3); margin-right: 2px; }
.wcp-chip {
    padding: 7px 14px; border-radius: 999px; border: 1.5px solid var(--wcp-line2);
    background: var(--wcp-card); color: var(--wcp-ink2); font-size: 13px; font-weight: 700;
    cursor: pointer; transition: .16s ease; font-family: var(--wcp-sans);
}
.wcp-chip:hover { border-color: var(--wcp-blue); color: var(--wcp-blue); transform: translateY(-1px); }
.wcp-chip.is-on { background: var(--wcp-blue); border-color: var(--wcp-blue); color: #fff; }
:root[data-theme="dark"] .wcp-chip.is-on { color: #10151e; }
.wcp-chip--go { border-color: var(--wcp-rose); color: var(--wcp-rose); }
.wcp-chip--go:hover { background: var(--wcp-rose); color: #fff; border-color: var(--wcp-rose); }

/* 首屏右侧：纸张剖面 */
.wcp-hero-side {
    position: relative; z-index: 1; min-width: 0;
    padding: 16px 18px 14px; border-radius: 16px;
    background: var(--wcp-bg2); border: 1px dashed var(--wcp-line2);
}
.wcp-sheet-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 12px; }
.wcp-sheet-head b { font-family: var(--wcp-serif); font-size: 15px; color: var(--wcp-ink); }
.wcp-sheet-head span { font-size: 11.5px; color: var(--wcp-ink3); }
.wcp-sheet-scale { display: flex; flex-direction: column; gap: 9px; }
.wcp-sheet-row { display: grid; grid-template-columns: 62px 1fr 52px; align-items: center; gap: 10px; font-size: 12px; }
.wcp-sheet-row > span { color: var(--wcp-ink2); font-family: var(--wcp-mono); }
.wcp-sheet-row > b { text-align: right; font-family: var(--wcp-mono); color: var(--wcp-ink2); font-size: 11px; }
.wcp-sheet-bar { height: 13px; border-radius: 3px; background: var(--wcp-card); border: 1px solid var(--wcp-line2); overflow: hidden; }
.wcp-sheet-bar i { display: block; height: 100%; background: repeating-linear-gradient(90deg, var(--wcp-blue) 0 6px, var(--wcp-blue-soft) 6px 9px); }
.wcp-sheet-row.is-hi .wcp-sheet-bar i { background: repeating-linear-gradient(90deg, var(--wcp-rose) 0 6px, var(--wcp-rose-soft) 6px 9px); }
.wcp-wave { margin-top: 12px; border-top: 1px dashed var(--wcp-line2); padding-top: 8px; }
.wcp-wave svg { width: 100%; height: 56px; display: block; }
.wcp-wave-line { fill: none; stroke: var(--wcp-rose); stroke-width: 2.4; opacity: .8; }
.wcp-wave-base { fill: none; stroke: var(--wcp-line2); stroke-width: 1.2; stroke-dasharray: 4 4; }
.wcp-wave span { display: block; font-size: 11.5px; color: var(--wcp-ink3); text-align: center; }

/* ---------- 主体双列 ---------- */
.wcp-body { display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: 22px; margin-top: 22px; align-items: start; }
.wcp-body > * { min-width: 0; }
.wcp-form, .wcp-result {
    background: var(--wcp-card); border: 1.5px solid var(--wcp-line);
    border-radius: 18px; padding: 20px 22px 22px; box-shadow: var(--wcp-shadow-s);
}
.wcp-form { border-left: 4px solid var(--wcp-blue); }
.wcp-form-head { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.wcp-num { font-family: var(--wcp-mono); font-size: 12px; font-weight: 700; color: var(--wcp-rose); border: 1px solid var(--wcp-rose-soft); border-radius: 6px; padding: 2px 7px; }
.wcp-form-head h2 { margin: 0; font-family: var(--wcp-serif); font-size: 18px; font-weight: 800; color: var(--wcp-ink); }
.wcp-field { margin-bottom: 16px; }
.wcp-label { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; font-size: 13.5px; font-weight: 700; color: var(--wcp-ink); margin-bottom: 7px; }
.wcp-label em { font-style: normal; font-size: 12px; color: var(--wcp-blue); font-weight: 700; }
.wcp-label small { font-size: 11px; color: var(--wcp-ink3); font-weight: 400; }
.wcp-seg { display: flex; gap: 6px; flex-wrap: wrap; }
.wcp-seg button {
    flex: 1 1 auto; padding: 8px 10px; border-radius: 9px; border: 1.5px solid var(--wcp-line);
    background: var(--wcp-bg2); color: var(--wcp-ink2); font-size: 13px; font-weight: 700;
    cursor: pointer; transition: .15s; font-family: var(--wcp-sans);
}
.wcp-seg button:hover { border-color: var(--wcp-blue); }
.wcp-seg button.is-on { background: var(--wcp-blue-soft); border-color: var(--wcp-blue); color: var(--wcp-blue); }
.wcp-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.wcp-cards button {
    padding: 9px 4px; border-radius: 9px; border: 1.5px solid var(--wcp-line);
    background: var(--wcp-bg2); cursor: pointer; transition: .15s; font-family: var(--wcp-sans);
}
.wcp-cards button b { display: block; font-size: 13.5px; color: var(--wcp-ink); }
.wcp-cards button span { display: block; font-size: 10.5px; color: var(--wcp-ink3); line-height: 1.4; }
.wcp-cards button.is-on { border-color: var(--wcp-rose); background: var(--wcp-rose-soft); }
.wcp-cards button.is-on b { color: var(--wcp-rose); }
.wcp-tex { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.wcp-tex button { padding: 8px 4px 7px; border-radius: 9px; border: 1.5px solid var(--wcp-line); background: var(--wcp-bg2); cursor: pointer; font-family: var(--wcp-sans); }
.wcp-tex button i { display: block; height: 26px; border-radius: 5px; margin-bottom: 5px; border: 1px solid var(--wcp-line2); }
.wcp-tex-fine { background: repeating-linear-gradient(0deg, var(--wcp-card) 0 3px, var(--wcp-line) 3px 4px); }
.wcp-tex-cold { background: repeating-linear-gradient(0deg, var(--wcp-card) 0 5px, var(--wcp-line2) 5px 7px); }
.wcp-tex-rough { background: repeating-linear-gradient(0deg, var(--wcp-card) 0 3px, var(--wcp-line2) 3px 7px); }
.wcp-tex button b { font-size: 12.5px; color: var(--wcp-ink2); }
.wcp-tex button.is-on { border-color: var(--wcp-gold); background: var(--wcp-gold-soft); }
.wcp-tex button.is-on b { color: var(--wcp-gold); }
.wcp-input {
    width: 100%; padding: 9px 12px; border-radius: 9px; border: 1.5px solid var(--wcp-line2);
    background: var(--wcp-bg2); color: var(--wcp-ink); font-size: 15px; font-family: var(--wcp-mono);
    outline: none;
}
.wcp-input:focus { border-color: var(--wcp-blue); box-shadow: 0 0 0 3px var(--wcp-blue-soft); }
.wcp-err { margin: 6px 0 0; font-size: 12px; color: var(--wcp-rose); }
.wcp-actions { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 14px; }
.wcp-btn {
    padding: 9px 14px; border-radius: 9px; border: 1.5px solid var(--wcp-line2);
    background: var(--wcp-card); color: var(--wcp-ink2); font-size: 13px; font-weight: 700;
    cursor: pointer; transition: .15s; font-family: var(--wcp-sans);
}
.wcp-btn:hover { border-color: var(--wcp-blue); color: var(--wcp-blue); }
.wcp-btn--main { background: var(--wcp-blue); border-color: var(--wcp-blue); color: #fff; flex: 1 1 100%; }
.wcp-btn--main:hover { color: #fff; filter: brightness(1.1); }
:root[data-theme="dark"] .wcp-btn--main { color: #10151e; }
.wcp-btn-ai { border-color: var(--wcp-rose); color: var(--wcp-rose); }
.wcp-btn--sm { padding: 6px 11px; font-size: 12px; }
.wcp-btn:disabled { opacity: .55; cursor: wait; }
.wcp-ai { margin-top: 12px; padding: 12px; border-radius: 11px; background: var(--wcp-bg2); border: 1px dashed var(--wcp-line2); font-size: 13px; line-height: 1.8; }
.wcp-ai-status { margin: 0 0 6px; color: var(--wcp-ink3); font-size: 12px; }
.wcp-ai p { margin: 0 0 6px; }

/* ---------- 结果 ---------- */
.wcp-verdict {
    display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 20px;
    padding: 18px; border-radius: 14px; background: var(--wcp-bg2); border: 1px solid var(--wcp-line);
}
.wcp-verdict-num small { display: block; font-size: 12px; color: var(--wcp-ink3); }
.wcp-verdict-num b { display: block; font-family: var(--wcp-mono); font-size: clamp(30px, 4vw, 44px); line-height: 1.2; color: var(--wcp-blue); letter-spacing: -.02em; }
.wcp-verdict-num span { display: block; font-size: 12.5px; color: var(--wcp-ink2); line-height: 1.6; }
.wcp-verdict-bars { display: flex; flex-direction: column; gap: 10px; justify-content: center; }
.wcp-risk { display: grid; grid-template-columns: 72px 1fr 60px; gap: 9px; align-items: center; font-size: 12px; color: var(--wcp-ink2); }
.wcp-risk b { text-align: right; font-family: var(--wcp-mono); font-size: 12px; color: var(--wcp-ink); }
.wcp-track { height: 9px; border-radius: 999px; background: var(--wcp-card); border: 1px solid var(--wcp-line); overflow: hidden; }
.wcp-track i { display: block; height: 100%; width: 0; border-radius: 999px; background: var(--wcp-blue); transition: width .35s ease; }
.wcp-notes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; margin: 14px 0 18px; }
.wcp-note { padding: 11px 13px; border-radius: 11px; background: var(--wcp-card); border: 1px solid var(--wcp-line); font-size: 13px; line-height: 1.75; color: var(--wcp-ink2); }
.wcp-note b { display: block; font-size: 12px; letter-spacing: .03em; margin-bottom: 2px; }
.wcp-note.is-warn { border-color: var(--wcp-rose); background: var(--wcp-rose-soft); }
.wcp-note.is-warn b { color: var(--wcp-rose); }
.wcp-spec { margin-bottom: 18px; }
.wcp-spec-head, .wcp-batch-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.wcp-spec-head b, .wcp-batch-head b { font-family: var(--wcp-serif); font-size: 15.5px; color: var(--wcp-ink); }
.wcp-spec-head span, .wcp-batch-head span { font-size: 11.5px; color: var(--wcp-ink3); }
.wcp-spec-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.wcp-spec-item { padding: 10px 12px; border-radius: 10px; border: 1px solid var(--wcp-line); background: var(--wcp-bg2); }
.wcp-spec-item b { display: block; font-family: var(--wcp-mono); font-size: 15px; color: var(--wcp-blue); }
.wcp-spec-item span { display: block; font-size: 11.5px; color: var(--wcp-ink2); line-height: 1.55; }
.wcp-spec-item.is-rec { border-color: var(--wcp-gold); background: var(--wcp-gold-soft); }
.wcp-spec-item.is-rec b { color: var(--wcp-gold); }
.wcp-batch-btns { display: flex; gap: 6px; flex-wrap: wrap; }
.wcp-table-scroll { overflow-x: auto; }
.wcp-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.wcp-table th { text-align: left; padding: 8px 9px; background: var(--wcp-bg2); color: var(--wcp-ink3); font-weight: 700; border-bottom: 1.5px solid var(--wcp-line2); white-space: nowrap; }
.wcp-table td { padding: 8px 9px; border-bottom: 1px solid var(--wcp-line); color: var(--wcp-ink2); vertical-align: middle; }
.wcp-table td b { font-family: var(--wcp-mono); }
.wcp-table .wcp-mini { padding: 3px 8px; font-size: 11px; border-radius: 6px; border: 1px solid var(--wcp-line2); background: var(--wcp-card); color: var(--wcp-rose); cursor: pointer; }
.wcp-table input.wcp-memo { width: 100%; min-width: 90px; padding: 4px 6px; border-radius: 6px; border: 1px solid var(--wcp-line); background: var(--wcp-bg2); color: var(--wcp-ink); font-size: 12px; }
.wcp-memo-view { display: block; font-size: 11.5px; color: var(--wcp-ink3); word-break: break-all; }
.wcp-tip { margin: 8px 0 0; font-size: 11.5px; color: var(--wcp-ink3); }

/* ---------- 三步导读 ---------- */
.wcp-guide { margin: 22px 0 6px; padding: 20px 24px; border-radius: 18px; background: var(--wcp-card); border: 1.5px solid var(--wcp-line); }
.wcp-guide h2 { margin: 0 0 14px; font-family: var(--wcp-serif); font-size: 19px; color: var(--wcp-ink); }
.wcp-guide-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.wcp-guide article { padding: 12px 14px; border-radius: 12px; background: var(--wcp-bg2); border: 1px solid var(--wcp-line); }
.wcp-guide article > span { font-family: var(--wcp-mono); font-size: 12px; color: var(--wcp-rose); font-weight: 700; }
.wcp-guide h3 { margin: 4px 0 5px; font-size: 15px; font-family: var(--wcp-serif); color: var(--wcp-ink); }
.wcp-guide p { margin: 0; font-size: 13px; line-height: 1.85; color: var(--wcp-ink2); }

/* ---------- 浮层 ---------- */
.wcp-modal[hidden] { display: none !important; }
.wcp-modal {
    position: fixed; inset: 0; z-index: 9000; display: flex; align-items: center; justify-content: center;
    padding: 20px; background: rgba(18, 22, 30, .58); backdrop-filter: blur(3px);
    font-family: var(--wcp-sans); color: var(--wcp-ink);
}
.wcp-sheet {
    width: min(460px, 100%); padding: 24px; border-radius: 18px;
    background: var(--wcp-card); border: 1.5px solid var(--wcp-line); box-shadow: var(--wcp-shadow);
}
.wcp-sheet h3 { margin: 0 0 8px; font-family: var(--wcp-serif); font-size: 20px; }
.wcp-sheet p { margin: 0 0 12px; font-size: 13.5px; color: var(--wcp-ink2); line-height: 1.8; }
.wcp-sheet code { display: block; padding: 10px 12px; border-radius: 9px; background: var(--wcp-bg2); border: 1px dashed var(--wcp-line2); font-family: var(--wcp-mono); font-size: 12px; word-break: break-all; color: var(--wcp-blue); }
.wcp-sheet-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 14px; }
.wcp-toast {
    position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(10px);
    z-index: 9500; padding: 9px 18px; border-radius: 999px; font-size: 13px; font-weight: 700;
    background: var(--wcp-ink); color: var(--wcp-card); opacity: 0; pointer-events: none;
    transition: .25s ease; box-shadow: var(--wcp-shadow); font-family: var(--wcp-sans);
}
.wcp-toast.is-on { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
    .wcp-hero, .wcp-body, .wcp-verdict { grid-template-columns: minmax(0, 1fr); }
    .wcp-hero-side { order: 2; }
    .wcp-guide-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 600px) {
    .wcp-wrap { padding: 14px 12px 8px; }
    .wcp-hero { padding: 20px 16px; }
    .wcp-form, .wcp-result, .wcp-guide { padding: 16px 14px; }
    .wcp-notes { grid-template-columns: minmax(0, 1fr); }
    .wcp-table { min-width: 0; }
    .wcp-table th, .wcp-table td { padding: 6px 5px; font-size: 11.5px; }
    .wcp-hero-metrics > div { flex: 1 1 90px; padding: 8px 10px; }
    .wcp-hero-metrics b { font-size: 18px; }
}


/* 390 窄屏：公共「下一步推荐」卡片的 grid item 默认 min-width:auto 会被长文本撑开，
   这里做页面级兼容修复（本 CSS 只在本页加载，不影响站内其它页面）。 */
@media (max-width: 640px) {
    .tool-rec-grid > * { min-width: 0; }
    .tool-rec-item { min-width: 0; max-width: 100%; }
    .tool-rec-body b, .tool-rec-body small { white-space: normal; word-break: break-word; }
}