/* 材質只改外觀，不依內容或配對編號改變牌背。 */
:root {
    --brocade: url('art/materials/cloud-brocade.webp');
    --cloth-color: #132b43;
    --thread: #cfad71;
    --paper-color: #f4ead5;
    --paper-ink: #34291e;
    --paper-border: #bca078;
    --card-thickness: 3px;
    --card-radius: 9px;
}
:root[data-card-theme="vermilion"] {
    --brocade: url('art/materials/vermilion-brocade.webp');
    --cloth-color: #742c32;
    --thread: #e4c18c;
    --paper-color: #f1e0ca;
    --paper-border: #b38261;
}
.material-cabinet {
    display: grid;
    grid-template-columns: 1fr 300px;
    align-items: center;
    gap: 20px;
    margin: -8px -8px 28px;
    padding: 28px 32px;
    border: 1px solid #6e4b2c;
    border-radius: 17px;
    background: linear-gradient(100deg, rgb(25 17 13 / 62%), rgb(25 17 13 / 15%)), url('art/materials/walnut-table.webp') center / cover;
    box-shadow: inset 0 0 0 4px rgb(214 178 118 / 12%), inset 0 1px 2px rgb(255 234 195 / 22%), 0 8px 16px rgb(40 25 12 / 12%);
    color: #f4ead5;
}
.material-cabinet .section-caption { color: #d2b58d; margin-bottom: 9px; }
.material-copy h2 { font-size: 29px; font-weight: 700; letter-spacing: .1em; margin-bottom: 8px; }
#material-description { font-size: 12px; color: #dbc6a9; }
.material-options { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.material-choice {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 12px;
    padding: 8px 10px;
    color: #e4d0b4;
    background: rgb(20 14 11 / 35%);
    border: 1px solid rgb(207 173 113 / 35%);
    border-radius: 7px;
}
.material-choice.is-selected { color: #fff0d7; border-color: #d2b076; box-shadow: inset 0 0 0 1px rgb(210 176 118 / 30%); }
.material-swatch { width: 21px; height: 27px; border: 1px solid #bc995d; border-radius: 3px; background-size: cover; }
.swatch-indigo { background-image: url('art/materials/cloud-brocade.webp'); }
.swatch-vermilion { background-image: url('art/materials/vermilion-brocade.webp'); }
.material-turn { margin-top: 18px; padding: 4px 0; color: #e6d1b1; font-size: 12px; border-bottom: 1px solid rgb(230 209 177 / 40%); }
.material-preview { position: relative; height: 260px; perspective: 1000px; }
.material-preview > .card { position: absolute; width: 155px; min-height: 0; top: 25px; left: 95px; --rest-angle: 9deg; transform: rotate(var(--rest-angle)); }
.material-preview > .material-companion { left: 15px; top: 9px; --rest-angle: -11deg; transform: rotate(var(--rest-angle)); pointer-events: none; }
.material-preview .sample-verse .card-content { font-size: 15px; line-height: 2.2; writing-mode: vertical-rl; letter-spacing: .12em; }
#game-board, #duel-board {
    padding: 24px;
    border: 6px solid #715035;
    border-radius: 22px;
    background: linear-gradient(rgb(29 19 13 / 16%), rgb(29 19 13 / 28%)), url('art/materials/walnut-table.webp') center / cover;
    box-shadow: inset 0 0 0 1px #b58f5e, inset 0 0 26px rgb(12 8 5 / 45%), 0 18px 40px rgb(51 33 17 / 14%);
}
#game-board > div:first-child, #duel-board > div:first-child { padding: 11px; margin: -6px -6px 16px; border-radius: 9px; background: var(--surface); }
#cards-container { width: 100%; max-width: 100%; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; padding: 14px 3px 12px; }
#cards-container[data-layout="small"] { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card {
    position: relative;
    width: 100%;
    aspect-ratio: 3 / 4;
    min-height: 250px;
    min-width: 0;
    perspective: 1000px;
    -webkit-perspective: 1000px;
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    border-radius: var(--card-radius);
    box-shadow: 1px 3px 2px rgb(12 8 5 / 25%), 2px 6px 9px rgb(12 8 5 / 28%);
}
.card.turning { z-index: 3; box-shadow: 2px 12px 15px rgb(12 8 5 / 35%); }
.card-inner { position: relative; width: 100%; height: 100%; transform-style: preserve-3d; -webkit-transform-style: preserve-3d; }
.card.flipped .card-inner { transform: rotateY(180deg); }
.card-core { position: absolute; inset: 0; border-radius: var(--card-radius); background: #ad8a5c; pointer-events: none; }
.card-edge { position: absolute; pointer-events: none; background: repeating-linear-gradient(#a88b66 0px, #ead8ae 1px, #a88b66 1.5px); }
.edge-left, .edge-right { top: var(--card-radius); bottom: var(--card-radius); width: var(--card-thickness); }
.edge-left { left: 0; transform: translateX(-50%) rotateY(90deg); }
.edge-right { right: 0; transform: translateX(50%) rotateY(90deg); }
.edge-top, .edge-bottom { left: var(--card-radius); right: var(--card-radius); height: var(--card-thickness); }
.edge-top { top: 0; transform: translateY(-50%) rotateX(90deg); }
.edge-bottom { bottom: 0; transform: translateY(50%) rotateX(90deg); }
.card-front, .card-back {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--card-radius);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    overflow: hidden;
    box-sizing: border-box;
}
.card[data-facing="cloth"] .card-back, .card[data-facing="paper"] .card-front { visibility: hidden; }
.card-front {
    transform: translateZ(calc(var(--card-thickness) / 2));
    background: var(--cloth-color) var(--brocade) center / 100% 100%;
    border: 1px solid #baa06b;
    box-shadow: inset 0 0 0 2px rgb(18 17 12 / 35%), inset 0 0 13px rgb(0 0 0 / 30%);
    color: #f2d7a3;
}
.card-front::before { content: ''; position: absolute; inset: 4px; border: 1px solid rgb(219 190 131 / 50%); border-radius: 5px; pointer-events: none; }
.card-front::after { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at var(--shine-x, 25%) 15%, rgb(255 231 176 / 19%), transparent 60%); mix-blend-mode: screen; pointer-events: none; }
.card-front .text-symbol { font: 700 clamp(20px, 3vw, 36px) 'Noto Serif TC', serif; color: #f8ead0; background: #793c36; padding: 9px 12px; border: 1px solid #e1b58c; border-radius: 2px; text-shadow: none; box-shadow: 0 1px 2px #20150d66; }
.card-back {
    transform: rotateY(180deg) translateZ(calc(var(--card-thickness) / 2));
    background: linear-gradient(rgb(255 251 239 / 38%), rgb(255 251 239 / 38%)), url('art/materials/ivory-paper.webp') center / cover;
    background-color: var(--paper-color);
    color: var(--paper-ink);
    padding: 30px 16px 18px;
    border: 1px solid var(--paper-border);
    box-shadow: inset 0 0 0 3px rgb(149 117 68 / 9%), inset 0 0 12px rgb(124 86 40 / 10%);
    text-align: center;
}
:root[data-card-theme="vermilion"] .card-back { background-image: linear-gradient(rgb(225 165 121 / 12%), rgb(225 165 121 / 12%)), url('art/materials/ivory-paper.webp'); }
.card-back::before { content: ''; position: absolute; inset: 6px; border: 1px solid rgb(134 102 58 / 30%); border-radius: 3px; pointer-events: none; }
.face-label { position: absolute; top: 9px; right: 11px; padding: 1px 3px; border: 1px solid #a64c3d; border-radius: 2px; color: #963d42; font: 700 10px/1.2 'Noto Serif TC', serif; }
.card-content { width: 100%; max-height: 100%; overflow-wrap: anywhere; position: relative; font-size: clamp(17px, 1.65vw, 22px); font-weight: 500; line-height: 1.65; text-wrap: pretty; }
.description-card .card-back { text-align: left; }
.verse-card .card-content { display: flex; flex-direction: column; align-items: center; justify-content: center; width: auto; max-width: 100%; height: 100%; writing-mode: vertical-rl; text-orientation: mixed; font-size: clamp(20px, 2vw, 27px); line-height: 1.75; letter-spacing: .06em; }

.card-back .content-highlight { color: #8b4929; }
.card.matched { box-shadow: 0 0 0 1px #cfad71, 0 0 14px rgb(232 194 115 / 35%), 1px 4px 8px rgb(12 8 5 / 22%); }
.card.match-settled .card-back { border-color: #ba944f; }
@media (hover: hover) {
    .card:not(.turning):not(.matched):hover { box-shadow: 2px 7px 15px rgb(12 8 5 / 35%); }
    .card:hover .card-front::after { background: radial-gradient(ellipse at 65% 20%, rgb(255 231 176 / 26%), transparent 65%); }
}
@media (max-width: 900px) {
    #cards-container { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
    .material-cabinet { grid-template-columns: 1fr 240px; padding: 24px; }
    .material-preview > .card { width: 140px; left: 75px; top: 30px; }
    .material-preview > .material-companion { left: 0; top: 15px; }
}
@media (max-width: 640px) {
    .material-cabinet { grid-template-columns: 1fr; gap: 0; padding: 22px; }
    .material-copy h2 { font-size: 25px; }
    .material-preview { width: 245px; height: 240px; margin: 10px auto 0; }
    #game-board, #duel-board { padding: 12px; border-width: 4px; border-radius: 16px; }
    #game-board > div:first-child, #duel-board > div:first-child { margin: 0 0 10px; padding: 8px; }
    #cards-container, #cards-container[data-pairs] { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; }
    .card-back { padding: 28px 11px 16px; }
}
@media (max-width: 480px) {
    #cards-container, #cards-container[data-pairs] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .card-content { font-size: 17px; line-height: 1.6; }
    .verse-card .card-content { font-size: 20px; line-height: 1.4; }
}

.card-back .content-highlight { font-weight: 700; }
.card-size-character .card-content { font-size: clamp(24px, 4vw, 40px); font-weight: 700; }

/* 拼音字卡排版（小學生識字） */
.pinyin-card .card-back {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.card-size-pinyin .card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}
.pinyin-ruby {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    ruby-position: over;
    text-align: center;
    line-height: 1;
}
.pinyin-rt {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: clamp(14px, 1.8vw, 20px);
    font-weight: 700;
    color: #963d42;
    line-height: 1.15;
    letter-spacing: 0.04em;
    text-align: center;
    margin-bottom: 3px;
    user-select: none;
}
:root[data-card-theme="vermilion"] .pinyin-rt { color: #a64c3d; }
.dark .pinyin-rt { color: #d1a562; }
.pinyin-char {
    font-family: 'Noto Serif TC', serif;
    font-size: clamp(34px, 4.4vw, 52px);
    font-weight: 700;
    line-height: 1.1;
    color: inherit;
}

/* 外觀屬於次要設定；樣牌收進彈窗，首頁只留一個短入口。 */
.library-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.material-entry { display: inline-flex; align-items: center; gap: 7px; padding: 10px 12px; border-radius: 8px; font-size: 12px; white-space: nowrap; }
#material-dialog { width: min(720px, calc(100vw - 24px)); max-height: calc(100dvh - 24px); overflow-y: auto; padding: 16px; border-radius: 18px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); }
.material-dialog-header { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 0 3px 14px; }
.material-dialog-header h2 { font-weight: 700; font-size: 17px; }
.material-dialog-header button { font-size: 12px; color: var(--ink-muted); padding: 5px; }
#material-dialog .material-cabinet { margin: 0; padding: 22px; grid-template-columns: 1fr 260px; }
#matches { display: inline-block; }
/* 對牌落穩時的短促鎖定光與紙面掠光，沒有散落粒子。 */
.card.match-settled::after { content: ''; position: absolute; inset: -3px; border: 2px solid #e4c17d; border-radius: 12px; pointer-events: none; animation: pair-lock var(--match-duration, 360ms) ease-out both; }
.card.match-settled .card-back::after { content: ''; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(110deg, transparent 30%, rgb(255 222 151 / 28%) 48%, transparent 65%); animation: pair-glint var(--match-duration, 360ms) ease-out both; }
@keyframes pair-lock { 0% { opacity: 0; } 25% { opacity: .9; } 100% { opacity: 0; } }
@keyframes pair-glint { from { transform: translateX(-90%); opacity: 0; } 25% { opacity: 1; } to { transform: translateX(90%); opacity: 0; } }
/* 留出批註位置，配對時牌桌不因訊息出現而上下跳動。 */
#match-toast { display: flex; align-items: center; justify-content: center; height: 56px; min-height: 56px; }
#match-toast.hidden { visibility: hidden; opacity: 0; }
@media (max-width: 640px) {
    #material-dialog .material-cabinet { grid-template-columns: 1fr; padding: 18px; }
    #material-dialog .material-preview { width: min(245px, 100%); }
    .library-actions { width: 100%; }
}

#match-toast-text { max-height: 100%; overflow-y: auto; }

.material-preview .description-card .card-content { font-size: 14px; line-height: 1.7; }
.material-preview .card-back { padding: 26px 12px 14px; }

/* 已成對的紙牌留下同號朱砂印，保留完整文字區域與原有類別章。 */
.card.match-settled .card-back::before { border-color: rgb(170 133 65 / 65%); }
.pair-mark { position: absolute; top: 9px; left: 11px; z-index: 1; padding: 2px 4px; border: 1px solid rgb(150 61 66 / 65%); border-radius: 2px; background: rgb(255 250 238 / 85%); color: #963d42; font: 700 10px/1.1 'Noto Serif TC', serif; letter-spacing: .06em; writing-mode: horizontal-tb; transform: rotate(-5deg); animation: pair-seal var(--match-duration, 360ms) ease-out both; pointer-events: none; }
@keyframes pair-seal { 0%, 25% { opacity: 0; transform: scale(1.25) rotate(-5deg); } 40% { opacity: 1; transform: scale(.96) rotate(-5deg); } 100% { opacity: 1; transform: scale(1) rotate(-5deg); } }

/* 玩法與題箋沿用箋紙、墨色、朱砂，保持館藏入口緊湊。 */
.mode-picker { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0; padding: 0; border: 0; }
.mode-picker legend { margin-bottom: 8px; font: 700 13px 'Noto Serif TC', serif; color: var(--ink-muted); }
.mode-picker label { display: flex; flex: 1 1 220px; align-items: center; gap: 10px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; background: var(--surface); }
.mode-picker label:has(input:checked) { border-color: #963d42; box-shadow: inset 0 0 0 1px #963d42; background: #f5eeE7; }
.mode-picker input { accent-color: #963d42; }
.mode-picker span { font-weight: 700; font-size: 14px; }
.mode-picker small { display: block; margin-top: 3px; font-size: 12px; font-weight: 400; color: var(--ink-muted); }
#timer-track.practice-track { visibility: hidden; }
#match-toast { background: #fcf6e9; color: #4c4131; border-color: #c8ad78; text-align: left; }
#match-toast-text { line-height: 1.6; }
#game-over { background: #faf6eb url('art/materials/ivory-paper.webp') center / cover; border: 1px solid #c9b68e; box-shadow: 0 14px 38px #3c2c171a, inset 0 0 0 7px #fffcf47a; padding-top: 32px; }
.result-mode { font-size: 12px; color: var(--ink-muted); letter-spacing: .15em; margin: 8px 0 18px; }
#record-seal { display: inline-block; border: 2px solid #963d42; color: #963d42; font: 700 15px 'Noto Serif TC', serif; padding: 5px 9px; transform: rotate(-5deg); margin-bottom: 16px; }
#record-seal[hidden], #retry-mistakes[hidden] { display: none; }
.personal-record { color: var(--ink-muted); font-size: 12px; line-height: 1.8; margin-top: 8px; }
.result-accuracy { font-size: 13px; color: #3f6854; }
.review-status { font-size: 11px; color: #3f6854; background: #e9efe7; border-radius: 3px; padding: 2px 7px; }
.review-status.needs-review { color: #963d42; background: #f5e7e4; }
.deck-motif { color: #907348; font-size: 12px; margin-right: 6px; }

/* 錦背採滿地連續紋樣，類別字印獨立疊上，不以橢圓開光組織畫面。 */
:root[data-card-theme="bamboo"] { --brocade: url('art/materials/bamboo-brocade.webp'); --cloth-color: #244a3b; --thread: #c9ba7e; }
:root[data-card-theme="moon"] { --brocade: url('art/materials/moon-brocade.webp'); --cloth-color: #d7d8ce; --thread: #71818b; }
:root[data-card-theme="ink"] { --brocade: url('art/materials/ink-brocade.webp'); --cloth-color: #252723; --thread: #bda568; }
.swatch-bamboo { background-image: url('art/materials/bamboo-brocade.webp'); }
.swatch-moon { background-image: url('art/materials/moon-brocade.webp'); }
.swatch-ink { background-image: url('art/materials/ink-brocade.webp'); }
:root[data-card-theme="moon"] .card-front { box-shadow: inset 0 0 0 2px #8c9a9633, inset 0 0 13px #283b471f; }
:root[data-card-theme="moon"] .card-front::before { border-color: #71818b88; }
.material-choice:disabled { color: #c1af96; border-style: dashed; cursor: default; }
.collection-section { padding: 22px 2px 4px; }
.collection-heading { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.collection-heading h3 { font: 700 18px 'Noto Serif TC', serif; }
.collection-heading > span { font-size: 12px; color: var(--ink-muted); }
.collection-intro, .collection-local { color: var(--ink-muted); font-size: 12px; line-height: 1.8; margin: 10px 0 14px; }
.collection-local { margin-bottom: 0; }
.collection-list { display: grid; gap: 10px; }
.collection-item { display: grid; grid-template-columns: 48px 1fr; gap: 14px; align-items: center; padding: 14px; border: 1px solid var(--line); border-radius: 10px; background: #fffdf7; }
.collection-swatch { width: 48px; height: 64px; background-size: cover; border: 1px solid #b09a72; border-radius: 4px; box-shadow: 1px 2px 3px #35261922; }
.collection-item-title { display: flex; gap: 12px; align-items: center; justify-content: space-between; }
.collection-item-title strong { font: 700 14px 'Noto Serif TC', serif; }
.collection-item-title > span { font-size: 11px; color: var(--ink-muted); white-space: nowrap; }
.collection-item.is-unlocked .collection-item-title > span { color: #963d42; }
.collection-item p { font-size: 12px; margin: 4px 0; color: var(--ink-muted); }
.collection-item small { font-size: 11px; color: #8b642d; }
.collection-item progress { display: block; appearance: none; width: 100%; height: 4px; margin: 8px 0; border: 0; border-radius: 2px; background: #e7e0d1; overflow: hidden; }
.collection-item progress::-webkit-progress-bar { background: #e7e0d1; }
.collection-item progress::-webkit-progress-value { background: #8f7144; }
.collection-item progress::-moz-progress-bar { background: #8f7144; }
.collection-reward { padding: 12px; margin-bottom: 16px; border: 1px solid #c9b68e; border-radius: 8px; color: #794538; background: #fff8e7; font-size: 13px; }
.collection-reward button { display: block; margin: 8px auto 0; font-weight: 700; text-decoration: underline; text-underline-offset: 4px; }
.collection-reward[hidden] { display: none; }

/* 佈牌與收攏時保留網格尺寸，動畫只作用在卡牌本身。 */
#cards-container[data-ceremony] { pointer-events: none; }
#cards-container[data-ceremony] .card { will-change: transform, opacity; }
#cards-container[data-ceremony="gather"] .card.match-settled::after,
#cards-container[data-ceremony="gather"] .card-back::after { display: none; }

/* 複習沿用小幅題箋，不另做首頁展示區。 */
.learning-resume { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 16px 0; padding: 14px 16px; border: 1px solid #c4ad85; border-radius: 10px; background: #f6f0e3; color: var(--ink); }
.learning-resume[hidden] { display: none; }
.learning-resume strong { font: 700 15px 'Noto Serif TC', serif; }
.learning-resume p { font-size: 12px; color: var(--ink-muted); margin-top: 4px; }
.learning-resume button { padding: 9px 12px; font-size: 12px; white-space: nowrap; border-radius: 7px; }
.deck-learning { color: #77664d; font-size: 11px; margin-top: 10px; padding-top: 8px; border-top: 1px solid #c4ad853d; }
.learning-progress { margin: 12px 0; padding: 12px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.learning-progress > div { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 6px; }
.learning-progress strong { font-size: 13px; color: #3f6854; }
.learning-progress span, .learning-progress small { font-size: 11px; color: var(--ink-muted); }
.learning-progress small { display: block; line-height: 1.7; }
.learning-progress progress { appearance: none; display: block; width: 100%; height: 4px; margin: 9px 0; border: 0; border-radius: 2px; background: #e7e0d1; overflow: hidden; }
.learning-progress progress::-webkit-progress-bar { background: #e7e0d1; }
.learning-progress progress::-webkit-progress-value { background: #53725e; }
.learning-progress progress::-moz-progress-bar { background: #53725e; }
.learning-round-summary { font-size: 12px; color: var(--ink-muted); line-height: 1.8; margin-bottom: 14px; }
@media (max-width: 480px) { .learning-resume { align-items: flex-start; flex-direction: column; } }

.duel-dialog { width: min(620px,calc(100vw - 24px)); max-height: calc(100dvh - 24px); overflow: auto; border: 1px solid var(--line); border-radius: 16px; padding: 22px; background: var(--surface); color: var(--ink); }
.duel-dialog::backdrop { background: #201a15a6; }
.duel-rules,.duel-footnote { color: var(--ink-muted); font-size: 12px; line-height: 1.9; margin-bottom: 16px; }
.duel-create-form { display: grid; grid-template-columns: 1fr 100px; gap: 12px; }
.duel-create-form label,.duel-join-form label { display: grid; gap: 7px; font-size: 13px; }
.duel-create-form button { grid-column: 1 / -1; }
.duel-dialog select,.duel-dialog input { min-width: 0; width: 100%; border: 1px solid var(--line); border-radius: 7px; padding: 10px; background: #fffdf7; color: var(--ink); }
.duel-dialog button,.duel-lobby button,.duel-result button { padding: 10px 16px; border-radius: 8px; font-size: 13px; }
.duel-join-form { display: flex; align-items: end; gap: 10px; margin: 22px 0 12px; padding-top: 18px; border-top: 1px solid var(--line); }
.duel-join-form label { flex: 1; }.duel-error { color: #963d42; font-size: 13px; margin: 10px 0; }.duel-footnote { margin: 12px 0 0; }
.duel-heading { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; color: var(--ink); }.duel-heading button { padding: 6px 10px; font-size: 12px; border-radius: 6px; }.duel-heading h2 { flex: 1; font-weight: 700; }.duel-heading span { font-size: 12px; }
.duel-scores { display: grid; grid-template-columns: 1fr auto 1fr; gap: 10px; align-items: center; color: #f4e5cb; padding: 10px 0; text-align: center; font-size: 12px; }.duel-scores strong { font: 700 15px 'Noto Serif TC',serif; color: #f4d69b; }
.duel-lobby { text-align: center; color: #f4e5cb; padding: 24px 10px; }.duel-lobby strong { display: block; font-size: 28px; letter-spacing: .15em; margin: 15px 0; }.duel-lobby input { display: block; width: 100%; padding: 10px; border-radius: 7px; color: #34291e; margin-bottom: 15px; }.duel-lobby button { margin: 4px; }
.duel-connection { background: #faf3e5; border: 1px solid #c4ad85; border-radius: 8px; padding: 10px 12px; font-size: 13px; color: #4c4131; line-height: 1.7; }.duel-connection button { padding: 3px 8px; margin-left: 8px; }
#duel-cards { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 16px; padding: 20px 3px 12px; }#duel-cards[hidden],.duel-lobby[hidden],#duel-reconnect[hidden] { display: none; }
#duel-cards .duel-other .card-back { border-color: #5d8271; }#duel-cards .duel-other .pair-mark { color: #3f6854; border-color: #5d8271; }
#duel-cards .no-feedback::after,#duel-cards .no-feedback .card-back::after { display: none; }#duel-cards .no-feedback .pair-mark { animation: none; }
#duel-cards[data-ceremony] { pointer-events: none; }#duel-cards[data-ceremony] .card { will-change: transform; }
.duel-result { margin: 20px auto; width: min(580px,100%); padding: 30px 24px; text-align: center; border: 1px solid #c9b68e; border-radius: 16px; background: #faf6eb url('art/materials/ivory-paper.webp') center / cover; box-shadow: 0 14px 38px #3c2c171a; }.duel-result h2 { font-size: 28px; font-weight: 700; margin: 12px 0; }.duel-result p { line-height: 1.9; margin-bottom: 14px; }.duel-result button { margin: 4px; }
@media(max-width:640px) {#duel-cards {grid-template-columns:repeat(2,minmax(0,1fr));gap:11px;}.duel-scores {grid-template-columns:1fr 1fr;}.duel-scores strong {grid-column:1 / -1;grid-row:1;}.duel-join-form {flex-wrap:wrap;}.duel-heading h2 {font-size:14px;}}

/* 回合題箋留在牌桌內，不遮住章句或牌背。 */
.duel-turn-cue { display: grid; gap: 5px; margin-top: 12px; padding: 14px 16px; border: 1px solid #bfa67a; border-left: 4px solid #ac8954; border-radius: 8px; background: #f8f1e2; color: #514535; }
.duel-turn-cue[hidden],#duel-result-reconnect[hidden] { display: none; }
.duel-turn-cue > span { font-size: 12px; line-height: 1.6; }.duel-turn-cue > strong { font: 700 20px/1.5 'Noto Serif TC',serif; }
.duel-turn-cue[data-mine="true"] { border-left-color: #55725f; background: #f0f3e8; }.duel-turn-cue[data-mine="true"] > strong { color: #355440; }
.duel-scores > div { padding: 9px 6px; border: 1px solid transparent; border-radius: 7px; transition: background .2s,border-color .2s; }.duel-scores > div[data-active="true"] { border-color: #d4b279; background: #f9edcf15; color: #fff1d7; }
.duel-observing .card { cursor: default; }.duel-rematch-status { color: #665743; font-size: 13px; min-height: 3.8em; }
.duel-result button:disabled { opacity: .55; cursor: default; }
@media(max-width:640px) {.duel-turn-cue { padding: 10px 12px; }.duel-turn-cue > strong { font-size: 18px; }}