/* 英语口语短句 · 旅行手账短句本设计系统（前缀 dse-）
   浅色：奶油纸 + 珊瑚橙 + 深青；深色：深墨绿 + 亮珊瑚 + 亮青 */
.dse-page, .dse-modal, .ws-toast {
    --dse-bg: #fdf7ec; --dse-paper: #fffcf4; --dse-ink: #22383a; --dse-sub: #78827c;
    --dse-brand: #175a63; --dse-orange: #e2643b; --dse-line: #e9dfc9; --dse-fill: #f5eedd;
    --dse-shadow: 0 10px 26px rgba(34,56,58,.09);
    --dse-font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
}
:root[data-theme="dark"] .dse-page, :root[data-theme="dark"] .dse-modal, :root[data-theme="dark"] .ws-toast {
    --dse-bg: #171c1a; --dse-paper: #1f2926; --dse-ink: #eaf2ea; --dse-sub: #a3b0a8;
    --dse-brand: #6ec6cf; --dse-orange: #ff9b76; --dse-line: #31413a; --dse-fill: #26342e;
    --dse-shadow: 0 14px 32px rgba(0,0,0,.34);
}
.dse-page { background: var(--dse-bg); color: var(--dse-ink); font-family: var(--dse-font);
    font-size: 14.5px; line-height: 1.8; padding-bottom: 56px; }
.dse-wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.dse-page .detail-breadcrumb { padding: 18px 0 0; font-size: 13px; color: var(--dse-sub); }
.dse-page .detail-breadcrumb a { color: var(--dse-brand); text-decoration: none; }
.dse-page .detail-breadcrumb .sep { margin: 0 8px; }
.dse-page b { font-weight: 700; }
.dse-kicker { font-size: 11px; letter-spacing: .16em; color: var(--dse-orange); }

/* 首屏 */
.dse-hero { display: grid; grid-template-columns: 1.5fr .62fr; gap: 22px; margin: 22px 0 22px; }
.dse-hero-copy { background: var(--dse-paper); border: 1px solid var(--dse-line); border-radius: 10px;
    padding: 28px 30px; box-shadow: var(--dse-shadow); position: relative; overflow: hidden; }
.dse-hero-copy::after { content: ""; position: absolute; right: -30px; top: -30px; width: 130px; height: 130px;
    border: 2px dashed var(--dse-line); border-radius: 50%; }
.dse-hero h1 { font-size: clamp(24px, 2.9vw, 34px); line-height: 1.4; margin: 10px 0 8px; }
.dse-sub { font-size: 14px; line-height: 1.95; color: var(--dse-sub); margin: 0 0 18px; max-width: 680px; }
.dse-sub b { color: var(--dse-orange); }
.dse-page input { font: inherit; color: var(--dse-ink); background: var(--dse-paper);
    border: 1px solid var(--dse-line); border-radius: 7px; padding: 10px 12px; outline: none; box-sizing: border-box; }
.dse-page input:focus { border-color: var(--dse-orange); }
.dse-search { display: flex; gap: 8px; flex-wrap: wrap; }
.dse-search input { flex: 1 1 250px; min-width: 0; }
.dse-btn { font: inherit; font-size: 13px; font-weight: 600; cursor: pointer; border: 1px solid var(--dse-line);
    background: var(--dse-paper); color: var(--dse-ink); border-radius: 7px; padding: 9px 15px; white-space: nowrap; }
.dse-btn:hover:not(:disabled) { border-color: var(--dse-orange); }
.dse-btn:disabled { opacity: .5; }
.dse-btn--main { background: var(--dse-orange); border-color: var(--dse-orange); color: #fff; }
.dse-btn--main:hover { filter: brightness(1.08); }
.dse-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; }
.dse-tag { font: inherit; font-size: 12px; cursor: pointer; border: 1px solid var(--dse-line);
    background: var(--dse-fill); color: var(--dse-brand); border-radius: 16px; padding: 3px 11px; }
.dse-tag:hover, .dse-tag.is-on { background: var(--dse-brand); border-color: var(--dse-brand); color: #fff; }
.dse-daily { background: var(--dse-brand); color: #fff; border-radius: 10px; padding: 16px 18px; box-shadow: var(--dse-shadow); }
.dse-daily-h { font-size: 10px; letter-spacing: .15em; opacity: .82; border-bottom: 1px solid rgba(255,255,255,.26); padding-bottom: 9px; }
.dse-daily-list { margin: 12px 0; padding-left: 22px; font-size: 12.5px; line-height: 1.85; }
.dse-daily-list li { margin-bottom: 7px; }
.dse-daily-list li span { display: block; font-size: 11px; opacity: .72; }
.dse-checkin { border-top: 1px solid rgba(255,255,255,.26); padding-top: 12px; }
.dse-days { display: flex; gap: 5px; justify-content: space-between; }
.dse-days i { flex: 1; height: 24px; border-radius: 4px; background: rgba(255,255,255,.16); font-style: normal;
    font-size: 9px; text-align: center; line-height: 24px; }
.dse-days i.is-done { background: var(--dse-orange); }
.dse-days i.is-today { outline: 2px solid #fff; }
.dse-checkin-foot { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-top: 10px; font-size: 11.5px; }
.dse-checkin-foot .dse-btn { padding: 6px 12px; font-size: 12px; }

/* 句库卡：对话气泡 */
.dse-board, .dse-panel { background: var(--dse-paper); border: 1px solid var(--dse-line); border-radius: 10px;
    padding: 18px 20px; box-shadow: var(--dse-shadow); min-width: 0; }
.dse-panel { margin-top: 18px; }
.dse-panel-h { display: flex; justify-content: space-between; align-items: baseline; gap: 10px;
    border-bottom: 2px solid var(--dse-orange); padding-bottom: 10px; margin-bottom: 14px; }
.dse-panel-h b { font-size: 16px; }
.dse-panel-h span { font-size: 11.5px; color: var(--dse-sub); }
.dse-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.dse-card { background: var(--dse-bg); border: 1px solid var(--dse-line); border-radius: 12px 12px 12px 3px;
    padding: 13px 15px; min-width: 0; position: relative; }
.dse-card:nth-child(even) { border-radius: 12px 12px 3px 12px; background: var(--dse-fill); }
.dse-card-h { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.dse-scene { font-size: 10px; background: var(--dse-brand); color: #fff; border-radius: 10px; padding: 1px 8px; }
.dse-level { font-size: 10px; border: 1px solid var(--dse-line); border-radius: 10px; padding: 1px 7px; color: var(--dse-sub); }
.dse-level.is-formal { color: var(--dse-orange); border-color: var(--dse-orange); }
.dse-fav { margin-left: auto; border: 0; background: none; color: var(--dse-orange); font-size: 18px; cursor: pointer; line-height: 1; }
.dse-en { font: 600 16px/1.6 Georgia, "PingFang SC", serif; margin: 9px 0 3px; word-break: break-word; }
.dse-zh { font-size: 12.5px; color: var(--dse-sub); }
.dse-slot { font-size: 11px; color: var(--dse-brand); margin-top: 8px; border-top: 1px dashed var(--dse-line); padding-top: 7px; word-break: break-word; }
.dse-card-ops { display: flex; gap: 8px; margin-top: 9px; }
.dse-card-ops button { font: inherit; font-size: 11px; cursor: pointer; border: 1px solid var(--dse-line);
    background: var(--dse-paper); color: var(--dse-brand); border-radius: 5px; padding: 3px 9px; }
.dse-card-ops button:hover { border-color: var(--dse-orange); }
.dse-hint { font-size: 11.5px; color: var(--dse-sub); line-height: 1.8; margin: 12px 0 0; }
.dse-empty { grid-column: 1/-1; text-align: center; color: var(--dse-sub); padding: 24px; font-size: 13px; }

/* 小测与导出 */
.dse-quiz-start { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.dse-quiz-start span { font-size: 12px; color: var(--dse-sub); }
.dse-quiz-box[hidden] { display: none !important; }
.dse-quiz-box { margin-top: 14px; background: var(--dse-fill); border-radius: 8px; padding: 16px; }
.dse-quiz-q { font-size: 15px; line-height: 1.9; }
.dse-quiz-q b { color: var(--dse-orange); }
.dse-quiz-opts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 12px; }
.dse-quiz-opts button { font: inherit; font-size: 13px; text-align: left; cursor: pointer; padding: 9px 12px;
    border: 1px solid var(--dse-line); border-radius: 6px; background: var(--dse-paper); color: var(--dse-ink); }
.dse-quiz-opts button.is-right { border-color: var(--dse-brand); background: var(--dse-bg); }
.dse-quiz-opts button.is-wrong { border-color: var(--dse-orange); color: var(--dse-orange); }
.dse-quiz-foot { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-top: 12px; font-size: 12px; color: var(--dse-sub); }
.dse-err { color: var(--dse-orange); font-size: 12px; min-height: 18px; margin: 8px 0 0; }
.dse-wrong { margin-top: 14px; border-top: 1px dashed var(--dse-line); padding-top: 10px; font-size: 12px; }
.dse-wrong b span { color: var(--dse-orange); }
.dse-wrong div { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; color: var(--dse-sub); }
.dse-wrong div span { background: var(--dse-fill); border-radius: 3px; padding: 2px 8px; }
.dse-btn-row { display: flex; gap: 8px; flex-wrap: wrap; }

/* 弹窗：交卷后触发 */
.dse-modal[hidden] { display: none !important; }
.dse-modal { position: fixed; inset: 0; z-index: 9999; display: flex; align-items: center; justify-content: center;
    background: rgba(20,34,32,.62); padding: 20px; }
.dse-modal-box { position: relative; width: min(430px, 100%); background: var(--dse-paper); color: var(--dse-ink);
    padding: 28px 30px; border-radius: 10px; border-top: 5px solid var(--dse-orange); box-shadow: 0 22px 54px rgba(0,0,0,.3); }
.dse-modal-x { position: absolute; right: 12px; top: 6px; border: 0; background: none; font-size: 24px; color: var(--dse-sub); cursor: pointer; }
.dse-modal-box h2 { margin: 8px 0 10px; font-size: 22px; }
.dse-modal-box p { font-size: 14px; color: var(--dse-sub); line-height: 1.9; }
.ws-toast { position: fixed; left: 50%; bottom: 30px; transform: translate(-50%, 16px); z-index: 10000;
    background: var(--dse-ink); color: var(--dse-paper); padding: 10px 20px; border-radius: 7px;
    font-size: 13px; opacity: 0; pointer-events: none; transition: .25s; }
.ws-toast.is-on { opacity: 1; transform: translate(-50%, 0); }
.ws-toast.is-err { background: var(--dse-orange); color: #fff; }

@media (max-width: 960px) { .dse-hero { grid-template-columns: 1fr; } .dse-cards { grid-template-columns: 1fr; } }
@media (max-width: 480px) {
    .dse-wrap { padding: 0 12px; } .dse-hero-copy, .dse-board, .dse-panel { padding: 18px 14px; }
    .dse-quiz-opts { grid-template-columns: 1fr; }
}

/* dark hero contrast fix */
:root[data-theme="dark"] .dse-daily { background: #1c3734; color: #eaf2ea; }

/* dark button contrast fix */
:root[data-theme="dark"] .dse-btn--main { color: #1a120e; }