:root {
    --bg: #f4ede3;
    --bg-soft: #faf5ee;
    --surface: #fffdf9;
    --surface-2: #f7efe5;
    --surface-3: #efe3d6;
    --ink: #201a15;
    --ink-soft: #5d5247;
    --ink-faint: #8f806f;
    --line: #dacdbc;
    --line-strong: #c7b7a3;
    --accent: #7b4633;
    --accent-hover: #663121;
    --accent-2: #b97859;
    --accent-warm: #a56746;
    --accent-soft: rgba(123, 70, 51, 0.08);
    --accent-line: rgba(123, 70, 51, 0.18);
    --accent-ring: rgba(123, 70, 51, 0.14);
    --accent-shadow: rgba(123, 70, 51, 0.24);
    --danger: #8f4237;
    --success: #4d5d47;
    --chart-1: #7b4633;
    --chart-2: #a96547;
    --chart-3: #c49b71;
    --chart-4: #8a9778;
    --chart-5: #c57961;
    --chart-6: #6b6f5d;
    --chart-grid: rgba(123, 70, 51, 0.08);
    --chart-tick: #766657;
    --shadow: 0 18px 44px rgba(53, 39, 29, 0.08);
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-sm: 6px;
    --font-body: "Noto Serif SC", "Songti SC", "STSong", serif;
    --font-serif: "Noto Serif SC", "Songti SC", "STSong", serif;
    --font-display: "Noto Serif SC", "Songti SC", "STSong", serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    background: #f4f3ef;
    color: var(--ink);
    font-family: var(--font-body);
    line-height: 1.85;
    letter-spacing: 0.03em;
    min-height: 100vh;
}

body[data-page="landing"] {
    background:
        radial-gradient(circle at 14% 18%, rgba(161, 136, 101, 0.08), transparent 24%),
        radial-gradient(circle at 82% 20%, rgba(94, 104, 98, 0.05), transparent 22%),
        linear-gradient(180deg, #f5f1e8 0%, #eeeadf 100%);
}

a {
    color: inherit;
}

button,
input,
select {
    font: inherit;
}

[hidden] {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.eyebrow {
    color: var(--accent-warm);
    font-family: var(--font-serif);
    font-size: 0.73rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    margin: 0 0 0.75rem;
    opacity: 0.85;
}

.muted-copy,
.inline-note {
    color: var(--ink-soft);
}

.primary-button,
.ghost-link.buttonlike {
    border: none;
    cursor: pointer;
}

.primary-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    min-height: 52px;
    padding: 0 1.2rem;
    border-radius: 999px;
    background: var(--accent);
    color: #f7f5ef;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    box-shadow: 0 12px 26px var(--accent-shadow);
}

.primary-button:hover {
    transform: translateY(-2px);
    background: var(--accent-hover);
    box-shadow: 0 16px 30px rgba(102, 49, 33, 0.28);
}

.ghost-link,
.text-button {
    color: var(--ink-soft);
    text-decoration: none;
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
}

.ghost-link:hover,
.text-button:hover {
    color: var(--ink);
}

.site-shell {
    max-width: 1440px;
    margin: 0 auto;
    padding: 24px 28px 48px;
}

.landing-shell {
    position: relative;
}

.landing-shell::before {
    display: none;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0 0 16px;
}

.brand-lockup {
    display: inline-flex;
    align-items: center;
    gap: 0.9rem;
    text-decoration: none;
}

.brand-mark {
    width: 11px;
    height: 11px;
    border-radius: 2px;
    transform: rotate(45deg);
    background: linear-gradient(135deg, #d08a63 0%, var(--accent) 100%);
    box-shadow: 0 0 0 9px rgba(176, 118, 90, 0.12);
    flex-shrink: 0;
}

.brand-copy {
    display: flex;
    flex-direction: column;
}

.brand-copy strong {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 600;
}

.brand-copy em {
    color: var(--ink-faint);
    font-style: normal;
    font-size: 0.84rem;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.history-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    min-height: 38px;
    padding: 0 0.9rem;
    border-radius: 999px;
    border: 1px solid rgba(201, 193, 176, 0.82);
    background: rgba(255, 255, 255, 0.72);
    color: var(--ink-soft);
    cursor: pointer;
    transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}

.history-toggle-btn:hover {
    border-color: rgba(58, 84, 71, 0.28);
    color: var(--ink);
    background: rgba(255, 255, 255, 0.9);
}

.history-badge {
    min-width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 6px;
    border-radius: 999px;
    background: var(--accent);
    color: #f7f5ef;
    font-size: 0.76rem;
    line-height: 1;
}

.landing-main,
.workbench-main {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.welcome-main {
    gap: 28px;
}

.welcome-minimal-main {
    min-height: calc(100vh - 132px);
    display: flex;
    align-items: stretch;
    justify-content: flex-start;
    padding: 54px 0 28px;
}

.hero-block,
.search-intro-block,
.content-block,
.chart-card,
.filters-panel,
.results-panel,
.summary-card,
.setup-card {
    background: #ffffff;
    border: 1px solid rgba(210, 208, 200, 0.85);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.welcome-hero,
.welcome-card,
.welcome-note-block {
    background: #ffffff;
    border: 1px solid rgba(210, 208, 200, 0.85);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.hero-block {
    display: grid;
    grid-template-columns: 1.5fr 0.9fr;
    gap: 24px;
    padding: 40px;
}

.welcome-hero {
    display: grid;
    grid-template-columns: 1.3fr 0.85fr;
    gap: 28px;
    padding: 40px;
}

.welcome-minimal-hero {
    width: min(1280px, 100%);
    margin: 0 auto;
    padding: 54px 58px;
    background:
        linear-gradient(180deg, rgba(249, 244, 235, 0.96), rgba(243, 237, 226, 0.92)),
        repeating-linear-gradient(180deg, transparent 0 38px, rgba(107, 100, 88, 0.018) 38px 39px);
    border: 1px solid rgba(202, 193, 177, 0.76);
    border-radius: 34px;
    box-shadow: 0 22px 54px rgba(55, 49, 39, 0.075);
    position: relative;
    overflow: hidden;
}

.welcome-minimal-hero::before {
    content: "";
    position: absolute;
    inset: 18px;
    border-radius: 24px;
    border: 1px solid rgba(197, 186, 165, 0.34);
    pointer-events: none;
}

.welcome-minimal-hero::after {
    content: "";
    position: absolute;
    top: 48px;
    bottom: 48px;
    left: 53%;
    width: 1px;
    background: linear-gradient(180deg, rgba(164, 139, 103, 0), rgba(164, 139, 103, 0.26), rgba(164, 139, 103, 0));
    pointer-events: none;
}

.welcome-copy h1 {
    margin: 0 0 1rem;
    font-family: var(--font-serif);
    font-size: clamp(2.4rem, 4vw, 4.8rem);
    line-height: 1.04;
    letter-spacing: -0.03em;
}

.welcome-lead {
    max-width: 760px;
    color: var(--ink-soft);
    font-size: 1.06rem;
}

.welcome-minimal-hero h1 {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(2.1rem, 3.9vw, 3.8rem);
    line-height: 1.04;
    letter-spacing: 0.02em;
    color: #1f231f;
}

.welcome-minimal-hero h1 span {
    display: block;
}

.welcome-title-cn {
    font-weight: 700;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.welcome-title-en {
    margin-top: 0.95rem;
    max-width: 28rem;
    font-family: "Instrument Sans", -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: clamp(0.92rem, 1.25vw, 1.08rem);
    font-weight: 500;
    line-height: 1.5;
    letter-spacing: 0.07em;
    color: #766f63;
}

.welcome-minimal-hero .welcome-lead {
    max-width: 420px;
    margin: 1.35rem 0 0;
    font-family: var(--font-serif);
    font-size: 1.02rem;
    line-height: 1.9;
    letter-spacing: 0.14em;
    color: #5b6057;
}

.welcome-minimal-actions {
    justify-content: flex-start;
    margin-top: 1.9rem;
}

.welcome-hero-split {
    display: grid;
    grid-template-columns: minmax(0, 1.18fr) minmax(360px, 0.82fr);
    align-items: center;
    gap: 42px;
}

.welcome-copy-column {
    max-width: 760px;
    padding-left: 16px;
    position: relative;
    z-index: 1;
}

.welcome-copy-column .eyebrow {
    margin-bottom: 1rem;
    font-family: var(--font-serif);
    letter-spacing: 0.18em;
}

.welcome-copy-column::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 1px;
    height: 152px;
    background: linear-gradient(180deg, rgba(160, 134, 94, 0.48), rgba(160, 134, 94, 0));
}

.welcome-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 420px;
    z-index: 1;
}

.welcome-visual::before {
    content: "";
    position: absolute;
    inset: 9% 6% 10% 6%;
    border-radius: 28px;
    background:
        radial-gradient(circle at 20% 20%, rgba(203, 142, 112, 0.08), transparent 18%),
        linear-gradient(180deg, rgba(251, 247, 239, 0.64), rgba(244, 238, 226, 0.28));
    border: 1px solid rgba(204, 194, 178, 0.34);
}

.welcome-figure {
    position: relative;
    width: min(500px, 100%);
    overflow: visible;
}

.figure-paper {
    fill: rgba(251, 247, 239, 0.95);
    stroke: rgba(201, 188, 168, 0.78);
    stroke-width: 1.4;
}

.figure-paper-back {
    fill: rgba(240, 232, 219, 0.82);
    transform-origin: 257px 219px;
    animation: figurePaperDrift 7s ease-in-out infinite;
}

.figure-paper-front {
    animation: figureFrontBreath 6.6s ease-in-out infinite;
}

.figure-paper-line {
    stroke: rgba(89, 88, 80, 0.24);
    stroke-width: 7;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.figure-index-node {
    fill: #c07a56;
    opacity: 0.86;
}

.figure-index-link,
.figure-scroll {
    stroke: #1d1a17;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
}

.figure-index-link {
    stroke-width: 9px;
    stroke-dasharray: 360;
    stroke-dashoffset: 360;
    animation: figureLinkDraw 6.2s ease-in-out infinite;
}

.figure-scroll {
    stroke-width: 9px;
    animation: figureRibbonFloat 8.4s ease-in-out infinite;
    transform-origin: 72% 48%;
}

.node-a {
    animation: figurePulse 6.2s ease-in-out infinite;
    transform-origin: 170px 152px;
}

.node-b {
    animation: figurePulse 6.2s ease-in-out infinite 0.6s;
    transform-origin: 434px 276px;
}

.line-one,
.line-three {
    animation: figureLineFlicker 5.6s ease-in-out infinite;
}

.line-two,
.line-four {
    animation: figureLineFlicker 5.6s ease-in-out infinite 0.7s;
}

.welcome-setup-card {
    width: min(720px, 100%);
    margin-top: 26px;
    text-align: left;
}

.welcome-aside {
    display: flex;
    align-items: stretch;
}

.welcome-facts {
    width: 100%;
    display: grid;
    gap: 14px;
    padding: 22px 24px;
    border-radius: calc(var(--radius-lg) - 4px);
    background: rgba(255, 255, 255, 0.58);
    border: 1px solid rgba(201, 193, 176, 0.55);
}

.welcome-fact {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: baseline;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--line);
}

.welcome-fact:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.welcome-fact span {
    color: var(--ink-faint);
    font-size: 0.92rem;
}

.welcome-fact strong {
    font-size: 1rem;
    text-align: right;
}

.hero-copy h1,
.search-intro-block h1 {
    margin: 0 0 1rem;
    font-family: var(--font-serif);
    font-size: clamp(2.2rem, 4vw, 4.4rem);
    line-height: 1.08;
    letter-spacing: -0.02em;
}

.hero-text {
    max-width: 720px;
    color: var(--ink-soft);
    font-size: 1.05rem;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.setup-card {
    padding: 24px;
}

.setup-card h3 {
    margin: 0 0 0.5rem;
    font-family: var(--font-serif);
}

.setup-card p {
    margin: 0 0 1rem;
    color: var(--ink-soft);
}

.setup-card code {
    display: block;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    background: rgba(58, 84, 71, 0.07);
    color: var(--accent);
    overflow-wrap: anywhere;
}

.metric-stack {
    display: grid;
    gap: 14px;
    margin: 0;
}

.metric-stack div {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.metric-stack dt {
    color: var(--ink-faint);
}

.metric-stack dd {
    margin: 0;
    font-weight: 600;
}

.stats-strip,
.summary-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.stats-strip article,
.summary-card {
    padding: 22px 24px;
}

.stats-strip span,
.summary-card span {
    display: block;
    color: var(--ink-faint);
    font-size: 0.86rem;
}

.stats-strip strong,
.summary-card strong {
    display: block;
    margin-top: 0.45rem;
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 2vw, 2.2rem);
}

.two-column-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.content-block {
    padding: 28px;
}

.welcome-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.welcome-card {
    padding: 30px;
}

.welcome-list,
.welcome-steps {
    display: grid;
    gap: 18px;
}

.welcome-list-item strong,
.welcome-step strong {
    display: block;
    margin-bottom: 0.4rem;
}

.welcome-list-item p,
.welcome-step p,
.welcome-note {
    margin: 0;
    color: var(--ink-soft);
}

.welcome-step {
    display: grid;
    grid-template-columns: 36px 1fr;
    gap: 14px;
    align-items: flex-start;
}

.welcome-step span {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(58, 84, 71, 0.08);
    color: var(--accent);
    font-weight: 600;
}

.welcome-note-block {
    padding: 30px;
}

.content-block h2,
.panel-head h2,
.section-heading h2 {
    margin: 0 0 1rem;
    font-family: var(--font-serif);
    font-size: 1.55rem;
}

.path-list {
    display: grid;
    gap: 18px;
}

.path-item h3 {
    margin: 0 0 0.4rem;
    font-size: 1rem;
}

.path-item p,
.split-metric-list h3,
.timeline-list,
.results-meta,
.facet-group legend,
.detail-drawer-body,
.plain-rank-list span {
    color: var(--ink-soft);
}

.split-metric-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.plain-rank-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.plain-rank-list li {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--line);
}

.plain-rank-list.dense li span {
    max-width: 88%;
}

.timeline-block {
    overflow-x: auto;
}

.timeline-list {
    display: grid;
    grid-template-columns: repeat(19, minmax(120px, 1fr));
    gap: 12px;
}

.timeline-item {
    padding: 14px;
    border-radius: var(--radius-md);
    background: rgba(58, 84, 71, 0.06);
}

.timeline-item strong {
    display: block;
    margin-top: 6px;
    color: var(--ink);
}

.search-intro-block {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 24px;
    padding: 28px;
}

.search-entry-block {
    width: min(1080px, 100%);
    margin: 2.2rem auto 0;
    padding: 42px 40px 32px;
    background: rgba(255, 253, 248, 0.9);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(201, 193, 176, 0.62);
    border-radius: calc(var(--radius-lg) + 6px);
    box-shadow: var(--shadow);
}

.compact-workbench-head {
    grid-template-columns: auto minmax(420px, 1fr);
    align-items: center;
}

.workbench-heading-centered {
    text-align: center;
}

.workbench-heading h1 {
    margin: 0;
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    line-height: 1.08;
}

.search-entry-copy {
    max-width: 540px;
    margin: 0.8rem auto 0;
    color: var(--ink-soft);
    text-align: center;
}

.search-mode-tabs {
    display: inline-flex;
    gap: 8px;
    margin: 1.8rem auto 0;
    padding: 6px;
    border-radius: 999px;
    background: rgba(58, 84, 71, 0.06);
    border: 1px solid rgba(201, 193, 176, 0.62);
}

.search-mode-tab {
    min-height: 42px;
    padding: 0 18px;
    border: none;
    border-radius: 999px;
    background: transparent;
    color: var(--ink-soft);
    cursor: pointer;
    transition: background 0.18s ease, color 0.18s ease;
}

.search-mode-tab.is-active {
    background: var(--accent);
    color: #f8f4eb;
}

.search-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: end;
    gap: 12px;
    align-self: end;
}

.search-bar-centered {
    justify-content: center;
    margin-top: 1.4rem;
}

.advanced-search-form {
    margin-top: 1.4rem;
}

.advanced-search-stack {
    display: grid;
    gap: 12px;
}

.advanced-search-rows {
    display: grid;
    gap: 12px;
}

.advanced-query-row {
    display: grid;
    grid-template-columns: 130px 160px minmax(240px, 1fr) auto;
    gap: 12px;
    align-items: end;
}

.advanced-query-row.is-first {
    grid-template-columns: 160px minmax(240px, 1fr) auto;
}

.advanced-row-leading {
    display: grid;
    gap: 8px;
}

.advanced-row-leading span {
    color: var(--ink-soft);
    font-size: 0.9rem;
}

.advanced-row-placeholder {
    min-height: 52px;
    display: flex;
    align-items: center;
    padding: 0 16px;
    border-radius: 999px;
    border: 1px dashed rgba(201, 193, 176, 0.9);
    background: rgba(255, 255, 255, 0.48);
    color: var(--ink-faint);
}

.advanced-search-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-top: 4px;
}

.advanced-sort-wrap {
    width: 190px;
}

.advanced-footer-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    flex-wrap: wrap;
}

.add-condition-btn,
.advanced-row-remove {
    min-height: 52px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 16px;
    border-radius: 999px;
    border: 1px solid rgba(201, 193, 176, 0.88);
    background: rgba(255, 255, 255, 0.62);
    color: var(--ink-soft);
    cursor: pointer;
    transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}

.add-condition-btn:hover,
.advanced-row-remove:hover {
    border-color: rgba(58, 84, 71, 0.28);
    color: var(--ink);
    background: rgba(255, 255, 255, 0.9);
}

.advanced-row-remove {
    min-width: 74px;
}

.advanced-row-remove[disabled] {
    opacity: 0.45;
    cursor: default;
}

.field-select-wrap {
    position: relative;
}

.search-input-wrap {
    flex: 1 1 320px;
}

.field-select-wrap,
.advanced-search-grid .search-input-wrap,
.field-input-wrap,
.search-submit-wrap {
    display: grid;
    gap: 8px;
}

.field-select-wrap span,
.advanced-search-grid .search-input-wrap span,
.field-input-wrap span,
.search-submit-wrap span {
    color: var(--ink-soft);
    font-size: 0.9rem;
}

.search-submit-wrap span {
    visibility: hidden;
}

.search-submit-wrap .primary-button {
    min-height: 52px;
}

.search-input-wrap input,
.sort-select,
.auth-form input {
    width: 100%;
    min-height: 52px;
    padding: 0 16px;
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--ink);
    transition: border-color 0.2s ease, background 0.2s ease;
}

.search-input-wrap input:focus,
.sort-select:focus,
.auth-form input:focus {
    outline: none;
    border-color: var(--accent);
    background: #fffdf8;
}

.custom-select-native {
    position: absolute;
    top: 0;
    left: 0;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    border: 0;
    opacity: 0;
    overflow: hidden;
    pointer-events: none;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
}

.custom-select {
    position: relative;
    width: 100%;
}

.custom-select.is-open {
    z-index: 60;
}

.custom-select-trigger {
    width: 100%;
    min-height: 52px;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 0 16px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.78);
    color: var(--ink);
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.custom-select-trigger:hover,
.custom-select.is-open .custom-select-trigger {
    border-color: var(--accent);
    background: #fffdf8;
}

.custom-select-trigger:focus-visible {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(58, 84, 71, 0.12);
}

.custom-select-trigger-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.custom-select-trigger-icon {
    color: var(--ink-soft);
    font-size: 0.9rem;
    transition: transform 0.18s ease;
}

.custom-select.is-open .custom-select-trigger-icon {
    transform: rotate(180deg);
}

.custom-select-menu {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    width: max-content;
    min-width: 100%;
    max-width: min(280px, calc(100vw - 32px));
    z-index: 20;
    padding: 8px;
    border-radius: 20px;
    background: rgba(255, 253, 248, 0.98);
    border: 1px solid rgba(201, 193, 176, 0.75);
    box-shadow: 0 24px 44px rgba(40, 39, 34, 0.12);
}

.custom-select-option {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    white-space: nowrap;
    padding: 12px 14px;
    border: none;
    border-radius: 14px;
    background: transparent;
    color: var(--ink);
    cursor: pointer;
    text-align: left;
    transition: background 0.16s ease, color 0.16s ease;
}

.custom-select-option:hover {
    background: rgba(58, 84, 71, 0.06);
}

.custom-select-option.is-selected {
    background: rgba(58, 84, 71, 0.1);
    color: var(--accent);
}

.custom-select-option-check {
    opacity: 0;
    color: var(--accent);
    font-size: 0.9rem;
    transition: opacity 0.16s ease;
}

.custom-select-option.is-selected .custom-select-option-check {
    opacity: 1;
}

.search-suggest-wrap {
    position: relative;
}

.suggest-panel {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    z-index: 25;
    max-height: min(360px, 52vh);
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 8px;
    border-radius: 16px;
    background: #ffffff;
    border: 1px solid rgba(210, 208, 200, 0.96);
    box-shadow: 0 16px 34px rgba(26, 25, 23, 0.1);
    scrollbar-width: thin;
}

.suggest-group + .suggest-group {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid rgba(210, 208, 200, 0.72);
}

.suggest-group-title {
    margin: 0 0 6px;
    color: var(--ink-faint);
    font-size: 0.76rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.suggest-group-items {
    display: grid;
    gap: 4px;
}

.suggest-item {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    width: 100%;
    padding: 10px 12px;
    border: 1px solid rgba(224, 222, 216, 0.88);
    border-radius: 12px;
    background: #ffffff;
    color: var(--ink);
    cursor: pointer;
    text-align: left;
    transition: border-color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease;
}

.suggest-item:hover {
    background: #f8f8f6;
    border-color: rgba(45, 74, 62, 0.2);
    box-shadow: 0 8px 18px rgba(26, 25, 23, 0.05);
}

.suggest-item span {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.suggest-item em {
    color: var(--ink-faint);
    font-style: normal;
    white-space: nowrap;
    font-size: 0.95rem;
}

.search-scope-note {
    margin: 1rem 0 0;
    color: var(--ink-soft);
    text-align: center;
}

.search-results-shell {
    display: grid;
    gap: 16px;
    margin-top: 24px;
}

.charts-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr;
    gap: 16px;
    align-items: start;
}

.chart-card {
    padding: 22px;
    min-height: 320px;
    display: flex;
    flex-direction: column;
}

.chart-canvas-wrap {
    position: relative;
    width: 100%;
    height: 240px;
}

.chart-card canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

.section-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 12px;
}

.section-heading h2 {
    margin-bottom: 0;
}

.workbench-grid {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 16px;
    align-items: start;
}

.filters-panel,
.results-panel {
    padding: 22px;
}

.panel-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 14px;
}

.active-filter-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}

.active-filter-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(58, 84, 71, 0.08);
    color: var(--accent);
    border: 1px solid rgba(58, 84, 71, 0.12);
}

.active-query-pill {
    border-style: dashed;
}

.active-filter-pill button {
    border: none;
    background: transparent;
    color: inherit;
    cursor: pointer;
    padding: 0;
}

.facet-groups {
    display: grid;
    gap: 14px;
}

.facet-group {
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.65);
}

.facet-group legend {
    padding: 0 6px;
    font-size: 0.92rem;
}

.facet-option-list {
    display: grid;
    gap: 8px;
}

.facet-option {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 10px;
    align-items: center;
    font-size: 0.94rem;
}

.facet-option input {
    margin: 0;
}

.facet-option em {
    color: var(--ink-faint);
    font-style: normal;
}

.results-meta {
    font-size: 0.92rem;
}

.setup-inline-warning {
    padding: 12px 14px;
    border-radius: var(--radius-md);
    background: rgba(161, 79, 68, 0.08);
    color: var(--danger);
    margin-bottom: 12px;
}

.results-list {
    display: grid;
    gap: 12px;
}

.result-card {
    padding: 16px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.72);
    transition: transform 0.16s ease, border-color 0.16s ease;
}

.result-card:hover {
    transform: translateY(-1px);
    border-color: var(--line-strong);
}

.result-card-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.result-card h3 {
    margin: 0;
    font-size: 1.08rem;
}

.result-card .meta-line {
    margin: 6px 0 0;
    color: var(--ink-faint);
    font-size: 0.88rem;
}

.result-card p {
    margin: 10px 0 0;
    color: var(--ink-soft);
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.tag-chip {
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(123, 142, 132, 0.12);
    color: var(--accent);
    font-size: 0.82rem;
}

.result-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-button {
    min-height: 38px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.8);
    color: var(--ink);
    cursor: pointer;
}

.detail-button:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.pagination-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding-top: 14px;
}

.buttonlike {
    display: inline-flex;
    align-items: center;
}

.detail-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: min(560px, 94vw);
    height: 100vh;
    background: var(--surface);
    border-left: 1px solid var(--line);
    box-shadow: var(--shadow);
    transform: translateX(100%);
    transition: transform 0.24s ease;
    z-index: 80;
    display: flex;
    flex-direction: column;
}

.history-panel {
    position: fixed;
    top: 76px;
    right: 24px;
    width: min(430px, calc(100vw - 32px));
    max-height: min(76vh, 720px);
    background: rgba(255, 253, 248, 0.97);
    border: 1px solid rgba(201, 193, 176, 0.82);
    border-radius: 26px;
    box-shadow: 0 28px 56px rgba(40, 39, 34, 0.16);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 92;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.history-panel.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.history-overlay {
    position: fixed;
    inset: 0;
    background: rgba(27, 31, 28, 0.08);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.18s ease;
    z-index: 91;
}

.history-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
}

.detail-drawer.is-open {
    transform: translateX(0);
}

.drawer-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(27, 31, 28, 0.18);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 70;
}

.drawer-backdrop.is-open {
    opacity: 1;
    pointer-events: auto;
}

.detail-drawer-head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 22px 24px 12px;
    border-bottom: 1px solid var(--line);
}

.history-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 18px 20px 14px;
    border-bottom: 1px solid var(--line);
}

.history-panel-title,
.history-panel-actions {
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.history-panel-title {
    font-family: var(--font-serif);
    font-size: 1rem;
}

.history-clear-btn {
    min-height: 34px;
    padding: 0 0.8rem;
    border-radius: 999px;
    border: 1px solid rgba(201, 193, 176, 0.82);
    background: rgba(255, 255, 255, 0.78);
    color: var(--ink-soft);
    cursor: pointer;
}

.history-clear-btn:hover {
    color: var(--danger);
    border-color: rgba(161, 79, 68, 0.28);
}

.drawer-close {
    border: none;
    background: transparent;
    color: var(--ink-soft);
    cursor: pointer;
}

.detail-drawer-body {
    padding: 20px 24px 32px;
    overflow-y: auto;
}

.history-list {
    padding: 14px 18px 18px;
    overflow-y: auto;
    display: grid;
    gap: 16px;
}

.history-empty {
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px dashed rgba(201, 193, 176, 0.86);
    border-radius: 18px;
    color: var(--ink-faint);
    background: rgba(255, 255, 255, 0.56);
}

.history-date-group {
    display: grid;
    gap: 10px;
}

.history-date-label {
    color: var(--ink-faint);
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

.history-date-items {
    display: grid;
    gap: 10px;
}

.history-item {
    padding: 14px;
    border-radius: 18px;
    border: 1px solid rgba(201, 193, 176, 0.7);
    background: rgba(255, 255, 255, 0.68);
}

.history-item-top,
.history-item-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.history-item-bottom {
    margin-top: 10px;
}

.history-item-label {
    margin-top: 10px;
    color: var(--ink);
    font-size: 0.95rem;
    line-height: 1.55;
}

.history-type-badge,
.history-result-badge {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 0.78rem;
}

.history-type-badge {
    background: rgba(58, 84, 71, 0.08);
    color: var(--accent);
}

.history-result-badge {
    background: rgba(123, 142, 132, 0.12);
    color: var(--ink-soft);
}

.history-time {
    color: var(--ink-faint);
    font-size: 0.82rem;
}

.history-item-actions {
    display: flex;
    gap: 8px;
}

.history-action-btn {
    min-height: 32px;
    padding: 0 10px;
    border-radius: 999px;
    border: 1px solid rgba(201, 193, 176, 0.82);
    background: rgba(255, 255, 255, 0.76);
    color: var(--ink-soft);
    cursor: pointer;
}

.history-action-btn.is-primary {
    background: rgba(58, 84, 71, 0.08);
    color: var(--accent);
    border-color: rgba(58, 84, 71, 0.16);
}

.history-action-btn:hover {
    color: var(--ink);
    border-color: rgba(58, 84, 71, 0.24);
}

.detail-summary {
    margin-bottom: 20px;
    color: var(--ink);
}

.detail-field-grid {
    display: grid;
    gap: 12px;
}

.detail-field {
    padding: 14px;
    border-radius: var(--radius-md);
    background: rgba(58, 84, 71, 0.05);
}

.detail-field strong {
    display: block;
    margin-bottom: 6px;
    color: var(--ink-faint);
    font-size: 0.88rem;
}

.related-section {
    margin-top: 24px;
}

.related-section h3 {
    margin: 0 0 10px;
    font-size: 1rem;
}

.related-list {
    display: grid;
    gap: 8px;
}

.related-item {
    padding: 12px 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.76);
}

.related-item button {
    border: none;
    background: transparent;
    padding: 0;
    text-align: left;
    color: var(--ink);
    cursor: pointer;
}

.detail-anomaly-note {
    margin-top: 20px;
    padding: 12px 14px;
    border-radius: var(--radius-md);
    background: rgba(155, 122, 83, 0.08);
    color: var(--accent-warm);
}

.auth-shell {
    min-height: calc(100vh - 48px);
    width: min(1280px, calc(100vw - 40px));
    margin: 24px auto;
    display: grid;
    grid-template-columns: 1.02fr 0.98fr;
    border-radius: 32px;
    overflow: hidden;
    border: 1px solid rgba(201, 193, 176, 0.72);
    box-shadow: 0 32px 70px rgba(40, 39, 34, 0.12);
    background: rgba(255, 253, 248, 0.92);
}

.auth-poster {
    padding: 72px 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(circle at top left, rgba(58, 84, 71, 0.18), transparent 36%),
        radial-gradient(circle at bottom right, rgba(155, 122, 83, 0.08), transparent 28%),
        linear-gradient(180deg, #f4f0e7 0%, #eee7db 100%);
    position: relative;
}

.auth-poster-inner {
    max-width: 460px;
    margin: auto;
    text-align: left;
}

.auth-poster-inner h1 {
    margin: 0;
    font-family: var(--font-serif);
    font-size: clamp(3rem, 5vw, 5rem);
}

.auth-subtitle {
    margin: 0.5rem 0 1.5rem;
    color: var(--ink-soft);
    font-size: 1.02rem;
}

.auth-intro-text {
    max-width: 360px;
    margin: 0;
    color: var(--ink-soft);
    font-size: 1rem;
}

.auth-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px;
    background:
        linear-gradient(180deg, rgba(255, 253, 248, 0.82) 0%, rgba(250, 246, 239, 0.96) 100%);
}

.auth-card {
    width: min(460px, 100%);
    padding: 42px 38px;
    border-radius: var(--radius-lg);
    background: rgba(255, 253, 248, 0.92);
    border: 1px solid rgba(201, 193, 176, 0.66);
    box-shadow: 0 22px 48px rgba(40, 39, 34, 0.09);
}

.auth-card h2 {
    margin: 0 0 0.6rem;
    font-family: var(--font-serif);
    font-size: 2rem;
}

.auth-form {
    display: grid;
    gap: 14px;
    margin-top: 20px;
}

.auth-form label {
    display: grid;
    gap: 8px;
    color: var(--ink-soft);
}

.flash-list {
    list-style: none;
    margin: 18px 0 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.flash-item {
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
}

.flash-item.error {
    background: rgba(161, 79, 68, 0.08);
    color: var(--danger);
    border-color: rgba(161, 79, 68, 0.24);
}

.flash-item.success {
    background: rgba(54, 95, 67, 0.08);
    color: var(--success);
    border-color: rgba(54, 95, 67, 0.24);
}

.foot-link {
    margin-top: 18px;
    color: var(--ink-soft);
}

.foot-link a {
    color: var(--accent);
    text-decoration: none;
}

mark {
    background: rgba(155, 122, 83, 0.16);
    color: inherit;
    padding: 0 0.12em;
    border-radius: 4px;
}

@media (max-width: 1120px) {
    .hero-block,
    .welcome-hero,
    .landing-intro-head,
    .search-intro-block,
    .welcome-grid,
    .two-column-grid,
    .charts-grid,
    .workbench-grid,
    .auth-shell {
        grid-template-columns: 1fr;
    }

    .stats-strip,
    .summary-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .welcome-hero-split {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .welcome-copy-column {
        max-width: 100%;
        padding-left: 0;
    }

    .welcome-copy-column::before {
        display: none;
    }

    .welcome-visual {
        justify-content: center;
        min-height: 320px;
    }

    .landing-intro-grid {
        grid-template-columns: 1fr;
    }

    .advanced-query-row,
    .advanced-query-row.is-first {
        grid-template-columns: 1fr 1fr;
    }

    .advanced-search-footer {
        flex-wrap: wrap;
        justify-content: flex-start;
    }
}

/* ═══════════════════════════════════════════════════
   古典风格精化 · Classical Style Refinements
   ═══════════════════════════════════════════════════ */

/* 按钮古典化：减少胶囊感，用衬线字体 */
.primary-button {
    border-radius: 8px;
    font-family: var(--font-serif);
    letter-spacing: 0.1em;
    font-weight: 500;
    font-size: 0.95rem;
    box-shadow: 0 6px 16px rgba(45, 74, 62, 0.2);
}

/* 输入框与下拉 */
.search-input-wrap input,
.sort-select,
.auth-form input {
    border-radius: 8px;
    font-family: var(--font-serif);
    letter-spacing: 0.04em;
    background: rgba(253, 250, 243, 0.92);
    border-color: var(--line);
}

.custom-select-trigger {
    border-radius: 8px;
    font-family: var(--font-serif);
    letter-spacing: 0.04em;
    background: rgba(253, 250, 243, 0.92);
}

.custom-select-menu {
    border-radius: 12px;
    background: rgba(253, 250, 243, 0.99);
    border-color: var(--line);
}

.custom-select-option {
    border-radius: 7px;
    font-family: var(--font-serif);
}

/* 搜索标签页 */
.search-mode-tabs {
    border-radius: 10px;
}

.search-mode-tab {
    border-radius: 7px;
    font-family: var(--font-serif);
    letter-spacing: 0.06em;
}

/* 各种操作按钮 */
.history-toggle-btn {
    border-radius: 8px;
    font-family: var(--font-serif);
    letter-spacing: 0.05em;
    background: rgba(253, 250, 243, 0.85);
}

.add-condition-btn,
.advanced-row-remove {
    border-radius: 8px;
    font-family: var(--font-serif);
}

.history-clear-btn {
    border-radius: 7px;
    font-family: var(--font-serif);
}

.detail-button {
    border-radius: 7px;
    font-family: var(--font-serif);
    letter-spacing: 0.04em;
    background: rgba(253, 250, 243, 0.9);
}

/* 筛选标签 */
.active-filter-pill {
    border-radius: 5px;
    font-family: var(--font-serif);
    font-size: 0.88rem;
}

/* 结果标签 */
.tag-chip {
    border-radius: 4px;
    font-family: var(--font-serif);
    letter-spacing: 0.04em;
    font-size: 0.83rem;
    background: rgba(45, 74, 62, 0.08);
}

/* 结果卡片 */
.result-card {
    background: #ffffff;
    border: 1px solid rgba(210, 208, 200, 0.85);
    border-radius: 10px;
}

.result-card h3 {
    font-family: var(--font-serif);
    font-size: 1.06rem;
    letter-spacing: 0.04em;
    line-height: 1.65;
}

.result-card .meta-line {
    font-size: 0.9rem;
    letter-spacing: 0.03em;
}

/* 面板与区块标题：宋体，不强行拉字间距 */
.panel-head h2,
.section-heading h2,
.content-block h2 {
    font-family: var(--font-serif);
    font-weight: 600;
    letter-spacing: 0.02em;
}

/* 工作台大标题 */
.workbench-heading h1 {
    font-family: var(--font-serif);
    font-weight: 600;
    letter-spacing: 0.02em;
}

/* 统计数字 */
.stats-strip strong,
.summary-card strong {
    font-family: var(--font-serif);
    font-weight: 600;
    letter-spacing: 0;
}

/* 品牌标题 */
.brand-copy strong {
    letter-spacing: 0.06em;
}

.brand-copy em {
    letter-spacing: 0.03em;
}

/* 认证页面：LOGO 保留书法体，其余用宋体 */
.auth-poster-inner h1 {
    font-family: var(--font-display);
    font-weight: normal;
    letter-spacing: 0.05em;
}

.auth-card h2 {
    font-family: var(--font-serif);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.auth-subtitle {
    font-family: var(--font-serif);
    letter-spacing: 0.06em;
}

/* ═══════════════════════════════════════════════════
   White Surface Override · 去除偏黄底色
   ═══════════════════════════════════════════════════ */

:root {
    --bg: #f4ede3;
    --bg-soft: #faf5ee;
    --surface: #fffdf9;
    --surface-2: #f7efe5;
    --surface-3: #efe3d6;
    --line: #dacdbc;
    --line-strong: #c7b7a3;
    --ink-soft: #5d5247;
    --ink-faint: #8f806f;
    --accent: #7b4633;
    --accent-hover: #663121;
    --accent-2: #b97859;
    --accent-warm: #a56746;
    --accent-soft: rgba(123, 70, 51, 0.08);
    --accent-line: rgba(123, 70, 51, 0.18);
    --accent-ring: rgba(123, 70, 51, 0.14);
    --accent-shadow: rgba(123, 70, 51, 0.24);
    --danger: #8f4237;
    --success: #4d5d47;
    --chart-1: #7b4633;
    --chart-2: #a96547;
    --chart-3: #c49b71;
    --chart-4: #8a9778;
    --chart-5: #c57961;
    --chart-6: #6b6f5d;
    --chart-grid: rgba(123, 70, 51, 0.08);
    --chart-tick: #766657;
    --shadow: 0 18px 44px rgba(53, 39, 29, 0.08);
}

body {
    background:
        radial-gradient(circle at 15% 18%, rgba(171, 115, 86, 0.045), transparent 24%),
        radial-gradient(circle at 84% 16%, rgba(142, 125, 97, 0.04), transparent 20%),
        linear-gradient(180deg, #fbf8f3 0%, #f3eee7 100%);
}

body[data-page="landing"] {
    background:
        radial-gradient(circle at 15% 18%, rgba(171, 115, 86, 0.065), transparent 24%),
        radial-gradient(circle at 84% 16%, rgba(142, 125, 97, 0.055), transparent 21%),
        linear-gradient(180deg, #fcf8f2 0%, #f4eee6 100%);
}

body[data-page="landing"],
body[data-page="explore"],
body[data-page="login"],
body[data-page="register"] {
    -webkit-user-select: none;
    user-select: none;
}

body[data-page="landing"] input,
body[data-page="explore"] input,
body[data-page="login"] input,
body[data-page="register"] input,
body[data-page="landing"] textarea,
body[data-page="explore"] textarea,
body[data-page="login"] textarea,
body[data-page="register"] textarea {
    -webkit-user-select: text;
    user-select: text;
}

.landing-shell::before {
    background:
        linear-gradient(90deg, rgba(165, 120, 86, 0.03), transparent 18%, transparent 82%, rgba(165, 120, 86, 0.028)),
        linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 20%, transparent 80%, rgba(89, 72, 54, 0.02)),
        repeating-linear-gradient(180deg, transparent 0 47px, rgba(102, 86, 67, 0.012) 47px 48px);
    opacity: 0.4;
}

.welcome-minimal-hero,
.hero-block,
.search-intro-block,
.content-block,
.chart-card,
.filters-panel,
.results-panel,
.summary-card,
.setup-card,
.welcome-hero,
.welcome-card,
.welcome-note-block,
.auth-card {
    background: linear-gradient(180deg, rgba(255, 252, 248, 0.96), rgba(249, 243, 235, 0.94));
    border-color: rgba(210, 195, 176, 0.86);
}

.welcome-minimal-hero {
    background:
        linear-gradient(180deg, rgba(255, 253, 250, 0.98), rgba(249, 245, 239, 0.95)),
        repeating-linear-gradient(180deg, transparent 0 38px, rgba(117, 98, 75, 0.012) 38px 39px);
    border-color: rgba(211, 198, 182, 0.78);
    box-shadow: 0 24px 56px rgba(57, 43, 31, 0.09);
}

.welcome-minimal-hero::before,
.welcome-visual::before,
.facet-group,
.result-card,
.history-panel,
.history-toggle-btn,
.custom-select-menu {
    border-color: rgba(209, 194, 176, 0.88);
}

.welcome-minimal-hero::before {
    border-color: rgba(191, 171, 149, 0.42);
}

.welcome-minimal-hero::after {
    background: linear-gradient(180deg, rgba(165, 103, 70, 0), rgba(165, 103, 70, 0.28), rgba(165, 103, 70, 0));
}

.welcome-minimal-hero h1 {
    color: #231c16;
}

.welcome-title-en,
.welcome-minimal-hero .welcome-lead,
.search-entry-copy,
.search-scope-note,
.auth-subtitle,
.auth-intro-text,
.foot-link {
    color: var(--ink-soft);
}

.welcome-visual::before {
    background:
        radial-gradient(circle at 24% 18%, rgba(185, 132, 103, 0.07), transparent 20%),
        linear-gradient(180deg, rgba(255, 252, 247, 0.86), rgba(249, 242, 233, 0.4));
}

.welcome-copy-column::before {
    background: linear-gradient(180deg, rgba(165, 103, 70, 0.52), rgba(165, 103, 70, 0));
}

.landing-intro {
    width: min(1280px, 100%);
    margin: 0 auto;
    padding: 30px 34px 34px;
    background: linear-gradient(180deg, rgba(255, 252, 248, 0.96), rgba(249, 244, 238, 0.94));
    border: 1px solid rgba(209, 194, 176, 0.82);
    border-radius: 28px;
    box-shadow: 0 18px 40px rgba(56, 42, 30, 0.06);
}

.landing-intro-head {
    display: grid;
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 28px;
    align-items: start;
}

.landing-intro-head h2 {
    margin-bottom: 0;
}

.landing-intro-summary {
    margin: 1.8rem 0 0;
    max-width: 54rem;
    color: var(--ink-soft);
    font-size: 1rem;
    line-height: 1.95;
}

.landing-intro-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin-top: 24px;
}

.landing-intro-card {
    min-height: 100%;
    padding: 20px 20px 22px;
    background: rgba(255, 250, 244, 0.82);
    border: 1px solid rgba(211, 198, 182, 0.78);
    border-radius: 18px;
}

.landing-intro-card h3 {
    margin: 0 0 0.65rem;
    font-family: var(--font-serif);
    font-size: 1.08rem;
}

.landing-intro-card p {
    margin: 0;
    color: var(--ink-soft);
    line-height: 1.85;
}

.figure-paper {
    fill: rgba(255, 250, 243, 0.97);
    stroke: rgba(198, 178, 154, 0.82);
}

.figure-paper-back {
    fill: rgba(244, 233, 218, 0.88);
}

.figure-paper-line {
    stroke: rgba(131, 111, 89, 0.22);
}

.figure-index-node {
    fill: var(--accent-2);
    opacity: 0.78;
}

.figure-index-link,
.figure-scroll {
    stroke: #2a211b;
}

.search-entry-block,
.filters-panel,
.results-panel,
.summary-card,
.chart-card,
.facet-group,
.result-card,
.history-panel {
    background: rgba(255, 251, 246, 0.96);
}

.search-entry-block {
    border-color: rgba(209, 194, 176, 0.88);
    box-shadow: 0 18px 36px rgba(58, 43, 30, 0.08);
}

.search-mode-tabs {
    background: rgba(146, 121, 94, 0.08);
    border-color: rgba(205, 188, 169, 0.82);
}

.search-input-wrap input,
.sort-select,
.auth-form input,
.custom-select-trigger {
    background: rgba(255, 252, 247, 0.92);
    border-color: rgba(209, 194, 176, 0.88);
    color: var(--ink);
}

.search-input-wrap input::placeholder {
    color: #978675;
}

.custom-select-menu {
    background: rgba(255, 250, 244, 0.98);
    box-shadow: 0 22px 40px rgba(56, 42, 30, 0.12);
}

.custom-select-option:hover {
    background: rgba(123, 70, 51, 0.06);
}

.active-filter-pill,
.tag-chip {
    background: var(--accent-soft);
    border-color: var(--accent-line);
    color: var(--accent);
}

.confidential-blanked,
.print-blocked {
    background: #ffffff !important;
}

body.confidential-blanked .site-shell,
body.print-blocked .site-shell,
body.confidential-blanked .detail-drawer,
body.print-blocked .detail-drawer,
body.confidential-blanked .history-panel,
body.print-blocked .history-panel,
body.confidential-blanked .drawer-backdrop,
body.print-blocked .drawer-backdrop,
body.confidential-blanked .history-overlay,
body.print-blocked .history-overlay {
    visibility: hidden;
}

@media print {
    body * {
        visibility: hidden !important;
    }
}

/* 认证区底色 */
.auth-poster {
    background:
        radial-gradient(circle at top left, rgba(123, 70, 51, 0.16), transparent 40%),
        radial-gradient(circle at bottom right, rgba(166, 139, 103, 0.12), transparent 30%),
        linear-gradient(180deg, #efe2d2 0%, #e4d5c3 100%);
}

.auth-card {
    background: rgba(255, 251, 245, 0.96);
    border: 1px solid rgba(209, 194, 176, 0.88);
    border-radius: var(--radius-lg);
    box-shadow: 0 18px 34px rgba(56, 42, 30, 0.08);
}

.auth-shell {
    border-radius: 20px;
    background: rgba(255, 248, 241, 0.94);
    border-color: rgba(205, 189, 169, 0.72);
}

/* 历史面板与抽屉 */
.history-panel {
    border-radius: 14px;
    background: rgba(255, 251, 245, 0.98);
    border-color: var(--line);
    box-shadow: 0 24px 52px rgba(45, 34, 25, 0.14);
}

.history-item {
    border-radius: 10px;
    background: rgba(250, 242, 233, 0.78);
    border-color: var(--line);
}

.history-action-btn {
    border-radius: 7px;
}

.history-empty {
    border-radius: 10px;
    border-color: var(--line);
}

/* 筛选分组 */
.facet-group {
    border-radius: 8px;
    background: rgba(249, 240, 230, 0.72);
}

/* 详情字段 */
.detail-field {
    border-radius: 8px;
    background: rgba(123, 70, 51, 0.05);
    border: 1px solid rgba(207, 190, 169, 0.62);
}

.related-item {
    border-radius: 8px;
    background: rgba(255, 249, 241, 0.92);
    border-color: rgba(209, 194, 176, 0.78);
}

/* 检索区 */
.search-entry-block {
    border-radius: 16px;
    background: rgba(255, 251, 246, 0.96);
    border-color: rgba(209, 194, 176, 0.82);
    box-shadow: 0 18px 36px rgba(58, 43, 30, 0.08);
}

/* 分组占位框 */
.advanced-row-placeholder {
    border-radius: 8px;
    font-family: var(--font-serif);
    border-color: rgba(197, 180, 160, 0.88);
    background: rgba(249, 241, 232, 0.8);
    color: var(--ink-faint);
}

/* 顶栏底线：传统卷首分隔 */
.topbar {
    border-bottom: 1px solid rgba(161, 138, 112, 0.34);
    padding-bottom: 20px;
}

/* 分页区上线 */
.pagination-bar {
    border-top: 1px solid rgba(161, 138, 112, 0.28);
    padding-top: 16px;
    font-family: var(--font-serif);
    letter-spacing: 0.06em;
}

/* 幽灵链接统一字体 */
.ghost-link,
.text-button {
    font-family: var(--font-serif);
    letter-spacing: 0.04em;
}

/* 落地页文字 */
.welcome-minimal-hero h1 {
    letter-spacing: 0.02em;
}

.welcome-minimal-hero .welcome-lead {
    letter-spacing: 0.06em;
    font-size: 1.05rem;
    color: var(--ink-soft);
}

.welcome-copy-column .eyebrow {
    letter-spacing: 0.2em;
    color: var(--accent-warm);
}

/* 辅助说明文字 */
.search-entry-copy,
.search-scope-note {
    font-family: var(--font-serif);
    letter-spacing: 0.04em;
}

/* 落地页背景纸纹线 */
.landing-shell::before {
    background:
        linear-gradient(90deg, rgba(165, 120, 86, 0.045), transparent 18%, transparent 82%, rgba(165, 120, 86, 0.04)),
        linear-gradient(180deg, rgba(255, 255, 255, 0.1), transparent 20%, transparent 80%, rgba(80, 70, 55, 0.02)),
        repeating-linear-gradient(180deg, transparent 0 47px, rgba(100, 88, 70, 0.015) 47px 48px);
    border-radius: 24px;
}

/* 高亮词 */
mark {
    background: rgba(187, 129, 91, 0.22);
    border-radius: 3px;
}

/* 闪消息 */
.flash-item {
    border-radius: 6px;
    font-family: var(--font-serif);
}

.flash-item.error {
    background: rgba(143, 66, 55, 0.09);
    border-color: rgba(143, 66, 55, 0.22);
    color: var(--danger);
}

.flash-item.success {
    background: rgba(77, 93, 71, 0.09);
    border-color: rgba(77, 93, 71, 0.22);
    color: var(--success);
}

/* 内联警告 */
.setup-inline-warning {
    border-radius: 8px;
    font-family: var(--font-serif);
    background: rgba(143, 66, 55, 0.08);
    color: var(--danger);
}

.primary-button,
.search-mode-tab.is-active,
.history-badge {
    background: var(--accent);
    color: #fffaf4;
}

.primary-button:hover,
.search-mode-tab.is-active:hover {
    background: var(--accent-hover);
}

.history-toggle-btn,
.history-clear-btn,
.history-action-btn,
.detail-button,
.add-condition-btn,
.advanced-row-remove {
    background: rgba(255, 251, 245, 0.9);
    border-color: rgba(209, 194, 176, 0.88);
    color: var(--ink-soft);
}

.history-toggle-btn:hover,
.history-clear-btn:hover,
.history-action-btn:hover,
.detail-button:hover,
.add-condition-btn:hover,
.advanced-row-remove:hover,
.custom-select-trigger:hover,
.custom-select.is-open .custom-select-trigger,
.result-card:hover {
    border-color: rgba(165, 103, 70, 0.32);
}

.history-action-btn.is-primary,
.history-type-badge,
.custom-select-option.is-selected {
    background: var(--accent-soft);
    border-color: var(--accent-line);
    color: var(--accent);
}

.custom-select-trigger:focus-visible,
.search-input-wrap input:focus,
.sort-select:focus,
.auth-form input:focus {
    box-shadow: 0 0 0 3px var(--accent-ring);
    border-color: var(--accent);
}

.suggest-panel {
    background: rgba(255, 251, 245, 0.98);
    border-color: rgba(209, 194, 176, 0.88);
    box-shadow: 0 20px 38px rgba(56, 42, 30, 0.1);
}

.suggest-item:hover {
    background: rgba(249, 241, 232, 0.72);
    border-color: rgba(165, 103, 70, 0.24);
}

.history-result-badge {
    background: rgba(165, 103, 70, 0.1);
    color: var(--ink-soft);
}

.drawer-backdrop {
    background: rgba(34, 28, 22, 0.18);
}

.history-overlay {
    background: rgba(34, 28, 22, 0.1);
}

/* 图表卡片标题字体 */
.chart-card .section-heading h2 {
    font-size: 1.3rem;
}

@media (max-width: 760px) {
    .site-shell,
    .auth-poster,
    .auth-panel {
        padding: 18px;
    }

    .auth-shell {
        width: min(100vw, calc(100vw - 18px));
        margin: 9px auto;
        border-radius: 22px;
    }

    .topbar,
    .hero-block,
    .welcome-hero,
    .landing-intro,
    .search-intro-block,
    .search-entry-block,
    .content-block,
    .welcome-card,
    .welcome-note-block,
    .chart-card,
    .filters-panel,
    .results-panel,
    .auth-card {
        padding: 18px;
    }

    .topbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .topbar-actions,
    .hero-actions,
    .search-bar,
    .pagination-bar {
        width: 100%;
    }

    .topbar-actions {
        justify-content: space-between;
        flex-wrap: wrap;
    }

    .stats-strip,
    .summary-grid,
    .split-metric-list {
        grid-template-columns: 1fr;
    }

    .welcome-minimal-main {
        min-height: auto;
        padding-top: 20px;
        padding-bottom: 12px;
    }

    .welcome-minimal-hero {
        padding-top: 22px;
        padding-bottom: 18px;
    }

    .welcome-minimal-hero h1 {
        font-size: clamp(2rem, 11vw, 3rem);
    }

    .welcome-minimal-actions {
        justify-content: flex-start;
    }

    .welcome-visual {
        min-height: 240px;
    }

    .landing-intro {
        padding: 22px 20px 24px;
    }

    .welcome-figure {
        width: min(420px, 100%);
    }

    .advanced-query-row,
    .advanced-query-row.is-first {
        grid-template-columns: 1fr;
    }

    .advanced-sort-wrap,
    .advanced-footer-actions,
    .advanced-search-footer,
    .add-condition-btn {
        width: 100%;
    }

    .advanced-search-footer {
        align-items: stretch;
    }

    .advanced-footer-actions {
        flex-direction: column;
        align-items: stretch;
        justify-content: stretch;
    }

    .advanced-footer-actions .primary-button {
        width: 100%;
    }
}

@keyframes figureLinkDraw {
    0%,
    16% {
        stroke-dashoffset: 360;
    }
    42%,
    72% {
        stroke-dashoffset: 0;
    }
    100% {
        stroke-dashoffset: -360;
    }
}

@keyframes figureRibbonFloat {
    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-7px) rotate(1.2deg);
    }
}

@keyframes figurePulse {
    0%,
    100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.04);
    }
}

@keyframes figurePaperDrift {
    0%,
    100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(-5px, 5px);
    }
}

@keyframes figureLineFlicker {
    0%,
    100% {
        opacity: 0.32;
    }
    50% {
        opacity: 0.68;
    }
}