/* 网格交易测算：工程图纸风（蓝图底 + 图纸标题栏 + 技术指标栏）
   与前几套工具区分：等宽数字、细线框、角标、无圆角 */

:root {
    --gd-bg: #dfe7f1;
    --gd-paper: #fbfdff;
    --gd-blue: #14324e;
    --gd-blue-2: #1f4a70;
    --gd-line: #c3d2e2;
    --gd-line-2: #9db2c9;
    --gd-mark: #d99b00;
    --gd-mark-soft: #fdf3dc;
    --gd-red: #b3261e;
    --gd-red-soft: #f8e7e5;
    --gd-green: #1f7a53;
    --gd-ink: #10202f;
    --gd-ink2: #41586d;
    --gd-mut: #6f8299;
    --gd-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
    --gd-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --gd-shadow: 0 1px 0 rgba(16, 32, 47, .04), 0 16px 32px -28px rgba(16, 32, 47, .6);
}

[data-theme="dark"] {
    --gd-bg: #08131e;
    --gd-paper: #0f1e2d;
    --gd-blue: #9cc3e6;
    --gd-blue-2: #bcd8ef;
    --gd-line: #22354a;
    --gd-line-2: #33506b;
    --gd-mark: #e8b13a;
    --gd-mark-soft: rgba(232, 177, 58, .12);
    --gd-red: #f08a80;
    --gd-red-soft: rgba(240, 138, 128, .12);
    --gd-green: #57c99a;
    --gd-ink: #e8f1fa;
    --gd-ink2: #b6c8d9;
    --gd-mut: #7f95ab;
    --gd-shadow: 0 1px 0 rgba(0, 0, 0, .5), 0 18px 36px -30px #000;
}

body { background: var(--gd-bg); }

.grd {
    font-family: var(--gd-sans);
    color: var(--gd-ink);
    background-color: var(--gd-bg);
    background-image:
        repeating-linear-gradient(90deg, rgba(31, 74, 112, .1) 0 1px, transparent 1px 80px),
        repeating-linear-gradient(0deg, rgba(31, 74, 112, .1) 0 1px, transparent 1px 80px),
        repeating-linear-gradient(90deg, rgba(31, 74, 112, .05) 0 1px, transparent 1px 16px),
        repeating-linear-gradient(0deg, rgba(31, 74, 112, .05) 0 1px, transparent 1px 16px);
    font-size: 14px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
.grd *, .grd *::before, .grd *::after { box-sizing: border-box; }
.grd [hidden] { display: none !important; }
.grd h1, .grd h2, .grd h3 { margin: 0; font-weight: 800; line-height: 1.22; letter-spacing: -.01em; }
.grd p { margin: 0; }
.grd a { color: var(--gd-blue); text-decoration: none; }
.grd a:hover { text-decoration: underline; text-underline-offset: 3px; }
.grd button, .grd input, .grd select { font-family: inherit; }
.grd-wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ---------- 标题栏 ---------- */
.grd-hero {
    padding: 16px 0 24px;
    background: linear-gradient(180deg, rgba(251, 253, 255, .92), rgba(223, 231, 241, 0));
}
[data-theme="dark"] .grd-hero { background: linear-gradient(180deg, rgba(15, 30, 45, .95), rgba(8, 19, 30, 0)); }
.grd-topline { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.grd-crumb {
    display: flex; flex-wrap: wrap; align-items: center; gap: 6px;
    font-size: 12px; color: var(--gd-mut);
}
.grd-crumb a { color: var(--gd-mut); }
.grd-crumb a:hover { color: var(--gd-blue); }
.grd-crumb span { opacity: .5; }
.grd-crumb i { font-style: normal; color: var(--gd-ink2); }

.grd-theme {
    display: inline-flex; flex: none; gap: 0;
    border: 1px solid var(--gd-line-2);
    background: var(--gd-paper);
}
.grd-theme button {
    padding: 4px 10px;
    border: 0;
    border-left: 1px solid var(--gd-line);
    background: transparent; color: var(--gd-mut);
    font-size: 11.5px; cursor: pointer;
    transition: background-color .15s, color .15s;
}
.grd-theme button:first-child { border-left: 0; }
.grd-theme button:hover { color: var(--gd-ink); }
.grd-theme button[aria-pressed="true"] { background: var(--gd-blue); color: var(--gd-paper); }

.grd-titlebar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 28px;
    align-items: end;
    margin-top: 16px;
    padding-bottom: 14px;
    border-bottom: 3px double var(--gd-line-2);
}
.grd-fig {
    font-family: var(--gd-mono);
    font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
    color: var(--gd-mark);
}
.grd-h1 {
    margin-top: 6px;
    font-size: clamp(27px, 3.3vw, 42px);
    letter-spacing: -.03em;
}
.grd-lede {
    margin-top: 10px; max-width: 40em;
    font-size: 14.5px; line-height: 1.9; color: var(--gd-ink2);
}
.grd-lede strong { color: var(--gd-ink); font-weight: 700; }

.grd-meta {
    display: grid;
    grid-template-columns: repeat(2, minmax(96px, auto));
    gap: 0;
    margin: 0;
    border: 1px solid var(--gd-line-2);
    background: var(--gd-paper);
}
.grd-meta > div {
    padding: 6px 12px;
    border-right: 1px solid var(--gd-line);
    border-bottom: 1px solid var(--gd-line);
}
.grd-meta > div:nth-child(2n) { border-right: 0; }
.grd-meta > div:nth-last-child(-n + 2) { border-bottom: 0; }
.grd-meta dt {
    font-size: 10.5px; letter-spacing: .08em;
    color: var(--gd-mut);
}
.grd-meta dd {
    margin: 0;
    font-family: var(--gd-mono);
    font-size: 13px; font-weight: 700;
    color: var(--gd-ink);
}

/* ---------- 参数栏 ---------- */
.grd-body { padding-bottom: 56px; }
.grd-params {
    margin-top: 20px;
    border: 1px solid var(--gd-line-2);
    background: var(--gd-paper);
    box-shadow: var(--gd-shadow);
}
.grd-params-head {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 9px 16px;
    border-bottom: 1px solid var(--gd-line-2);
    background: linear-gradient(180deg, rgba(31, 74, 112, .06), transparent);
}
.grd-params-head h2 {
    font-size: 13px; letter-spacing: .12em;
    padding-left: 9px;
    border-left: 3px solid var(--gd-mark);
}
.grd-params-head span { font-size: 11.5px; color: var(--gd-mut); }

.grd-fields {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 1px;
    background: var(--gd-line);
}
.grd-f {
    display: block;
    padding: 10px 12px 11px;
    background: var(--gd-paper);
}
.grd-f > span:first-child {
    display: block;
    font-size: 11.5px; color: var(--gd-mut);
    white-space: nowrap;
}
.grd-box {
    display: flex; align-items: baseline; gap: 3px;
    margin-top: 3px;
    border-bottom: 1px solid var(--gd-line-2);
    transition: border-color .15s;
}
.grd-box:focus-within { border-bottom-color: var(--gd-blue); }
.grd-box.is-bad { border-bottom-color: var(--gd-red); }
.grd-box input {
    width: 100%; min-width: 0;
    padding: 2px 0 3px;
    border: 0; background: transparent;
    color: var(--gd-ink);
    font-family: var(--gd-mono);
    font-size: 16px; font-weight: 700;
    text-align: right;
    outline: none;
}
.grd-box input::placeholder { color: var(--gd-mut); font-weight: 400; }
.grd-box em { flex: none; font-style: normal; font-size: 11px; color: var(--gd-mut); }

.grd-err {
    padding: 8px 16px;
    border-top: 1px solid var(--gd-line);
    background: var(--gd-red-soft);
    font-size: 12.5px; color: var(--gd-red);
}
.grd-samples {
    display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
    padding: 9px 16px;
    border-top: 1px solid var(--gd-line);
    font-size: 11.5px; color: var(--gd-mut);
}
.grd-samples button {
    padding: 3px 10px;
    border: 1px solid var(--gd-line-2);
    background: transparent; color: var(--gd-ink2);
    font-family: var(--gd-mono);
    font-size: 11.5px; cursor: pointer;
    transition: border-color .15s, color .15s, background-color .15s;
}
.grd-samples button:hover {
    border-color: var(--gd-mark);
    color: var(--gd-ink);
    background: var(--gd-mark-soft);
}

/* ---------- 结构图 ---------- */
.grd-drawing {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 252px;
    gap: 0;
    margin-top: 18px;
    border: 2px solid var(--gd-blue);
    background: var(--gd-paper);
    box-shadow: var(--gd-shadow);
}
.grd-drawing::before, .grd-drawing::after {
    content: "";
    position: absolute;
    width: 14px; height: 14px;
    border: 2px solid var(--gd-mark);
    pointer-events: none;
}
.grd-drawing::before { left: -2px; top: -2px; border-right: 0; border-bottom: 0; }
.grd-drawing::after { right: -2px; bottom: -2px; border-left: 0; border-top: 0; }

.grd-canvas-wrap {
    min-width: 0;
    padding: 14px 16px 16px;
}
.grd-draw-head {
    display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
    margin-bottom: 8px;
}
.grd-draw-head h2 {
    font-size: 13px; letter-spacing: .1em;
    color: var(--gd-ink2);
}
.grd-draw-head span {
    font-family: var(--gd-mono);
    font-size: 11.5px; color: var(--gd-mut);
}
.grd-canvas { width: 100%; height: 316px; }
.grd-canvas svg { display: block; width: 100%; height: 100%; }
.grd-note {
    margin-top: 6px;
    font-size: 11.5px; color: var(--gd-mut);
}

.grd-spec {
    border-left: 2px solid var(--gd-blue);
    background: var(--gd-blue);
    color: var(--gd-paper);
    padding: 14px 16px 14px;
}
[data-theme="dark"] .grd-spec { background: #0c2638; }
.grd-spec h2 {
    font-size: 12px; letter-spacing: .14em;
    padding-bottom: 7px;
    border-bottom: 1px solid rgba(255, 255, 255, .22);
    color: rgba(255, 255, 255, .75);
}
.grd-spec dl { margin: 10px 0 0; }
.grd-spec dl > div {
    display: flex; align-items: baseline; justify-content: space-between; gap: 10px;
    padding: 4px 0;
    border-bottom: 1px dotted rgba(255, 255, 255, .18);
}
.grd-spec dt { font-size: 11.5px; color: rgba(255, 255, 255, .66); }
.grd-spec dd {
    margin: 0;
    font-family: var(--gd-mono);
    font-size: 13px; font-weight: 700;
    color: #fff;
}
.grd-spec dd.is-neg { color: #ffb4ac; }
.grd-spec dd.is-pos { color: #9ef0c6; }
.grd-verdict {
    margin-top: 10px;
    font-size: 11.5px; line-height: 1.75;
    color: #ffd98a;
}

/* ---------- 面板与表格 ---------- */
.grd-row2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 18px;
}
.grd-panel {
    margin-top: 18px;
    border: 1px solid var(--gd-line-2);
    background: var(--gd-paper);
    box-shadow: var(--gd-shadow);
}
.grd-row2 .grd-panel { margin-top: 0; min-width: 0; }
.grd-panel-head {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 9px 16px;
    border-bottom: 1px solid var(--gd-line-2);
    background: linear-gradient(180deg, rgba(31, 74, 112, .06), transparent);
}
.grd-panel-head h2 {
    font-size: 13px; letter-spacing: .1em;
    padding-left: 9px;
    border-left: 3px solid var(--gd-mark);
}
.grd-panel-head span { font-size: 11.5px; color: var(--gd-mut); }

.grd-tablewrap {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.grd-panel-meta { display: inline-flex; align-items: center; gap: 6px; }
.grd-swipe {
    display: inline-block;
    font-style: normal;
    font-weight: 600;
    color: var(--gd-mark);
}
.grd-swipe[hidden] { display: none; }
.grd-tablewrap-tall { max-height: 420px; overflow-y: auto; }
.grd-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.grd-table th, .grd-table td {
    padding: 7px 12px;
    text-align: right;
    white-space: nowrap;
    border-bottom: 1px solid var(--gd-line);
    font-family: var(--gd-mono);
    font-variant-numeric: tabular-nums;
}
.grd-table th {
    position: sticky; top: 0; z-index: 1;
    background: rgba(31, 74, 112, .07);
    font-family: var(--gd-sans);
    font-size: 11px; font-weight: 600;
    color: var(--gd-mut);
    letter-spacing: .03em;
}
.grd-table th:first-child, .grd-table td:first-child { text-align: left; }
.grd-table tbody tr:last-child td { border-bottom: 0; }
.grd-table tbody tr:nth-child(even) { background: rgba(31, 74, 112, .03); }
.grd-table tbody tr:hover { background: var(--gd-mark-soft); }
.grd-table td { color: var(--gd-ink2); }
.grd-table td.is-neg { color: var(--gd-red); }
.grd-table td.is-pos { color: var(--gd-green); }
.grd-empty { text-align: center !important; font-family: var(--gd-sans); color: var(--gd-mut); }
.grd-tag {
    display: inline-block;
    padding: 1px 7px;
    border: 1px solid currentColor;
    font-family: var(--gd-sans);
    font-size: 10.5px;
    color: var(--gd-mut);
}
.grd-tag.buy { color: var(--gd-blue); }
.grd-tag.sell { color: var(--gd-mark); }
.grd-tag.edge { color: var(--gd-red); }

/* ---------- 说明 ---------- */
.grd-note-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 28px;
    padding: 16px 18px 4px;
}
.grd-note-grid h3 {
    font-size: 13px; margin-bottom: 4px;
    padding-left: 8px;
    border-left: 2px solid var(--gd-mark);
}
.grd-note-grid p { font-size: 13px; line-height: 1.9; color: var(--gd-ink2); }

.grd-faq { margin: 14px 18px 18px; border-top: 1px solid var(--gd-line-2); }
.grd-faq details { border-bottom: 1px solid var(--gd-line); }
.grd-faq summary {
    position: relative;
    padding: 11px 28px 11px 0;
    font-size: 13px; font-weight: 700;
    cursor: pointer; list-style: none;
}
.grd-faq summary::-webkit-details-marker { display: none; }
.grd-faq summary::after {
    content: "+"; position: absolute; right: 4px; top: 9px;
    font-family: var(--gd-mono); font-size: 15px; color: var(--gd-mut);
}
.grd-faq details[open] summary::after { content: "−"; color: var(--gd-mark); }
.grd-faq details > div {
    padding: 0 0 12px;
    font-size: 13px; line-height: 1.9; color: var(--gd-ink2);
}

/* ---------- SVG 图纸 ---------- */
.grd-canvas .cv-frame { fill: none; stroke: var(--gd-line-2); stroke-width: 1; }
.grd-canvas .cv-grid { stroke: var(--gd-line); stroke-width: 1; }
.grd-canvas .cv-zone-up { fill: rgba(31, 74, 112, .06); }
.grd-canvas .cv-zone-down { fill: rgba(217, 155, 0, .08); }
.grd-canvas .cv-edge { stroke: var(--gd-blue); stroke-width: 1.6; }
.grd-canvas .cv-now { stroke: var(--gd-mark); stroke-width: 1.6; stroke-dasharray: 5 4; }
.grd-canvas .cv-txt { fill: var(--gd-mut); font-size: 10px; font-family: var(--gd-mono); }
.grd-canvas .cv-txt-strong { fill: var(--gd-ink); font-size: 10.5px; font-family: var(--gd-mono); font-weight: 700; }
.grd-canvas .cv-mark { fill: var(--gd-mark); }
.grd-canvas .cv-dim { stroke: var(--gd-mut); stroke-width: 1; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
    .grd-fields { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .grd-drawing { grid-template-columns: minmax(0, 1fr); }
    .grd-spec { border-left: 0; border-top: 2px solid var(--gd-blue); }
    .grd-spec dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 22px; }
}
@media (max-width: 820px) {
    .grd-titlebar { grid-template-columns: minmax(0, 1fr); gap: 14px; }
    .grd-meta { justify-self: start; }
    .grd-row2 { grid-template-columns: minmax(0, 1fr); }
    .grd-note-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
    .grd-wrap { padding: 0 16px; }
    .grd-fields { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grd-canvas { height: 260px; }
    .grd-spec dl { grid-template-columns: minmax(0, 1fr); }
    .grd-topline { align-items: flex-start; }
    .grd-theme button { padding: 4px 8px; }
    .grd-panel-head { flex-wrap: wrap; row-gap: 2px; }
    .grd-panel-head h2 { white-space: nowrap; }
    .grd-panel-meta { margin-left: auto; text-align: right; }
}
@media (max-width: 420px) {
    .grd-h1 { font-size: 25px; }
    .grd-meta { grid-template-columns: repeat(2, minmax(0, 1fr)); width: 100%; }
}