:root {
    --primary: #102331;
    --primary-light: #7f9823;
    --success: #2f8a58;
    --danger: #d14a30;
    --warning: #c98920;
    --bg: #f7f3ea;
    --card: #fffdf7;
    --text: #102331;
    --text-light: #60727a;
    --border: rgba(16, 35, 49, .18);
}

html { scroll-behavior: smooth; }

body.speaking-reasons {
    margin: 0;
    padding: 0;
    color: var(--text);
    background:
        linear-gradient(rgba(16,35,49,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(16,35,49,.035) 1px, transparent 1px),
        var(--bg);
    background-size: 28px 28px;
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}

.speaking-reasons .container {
    width: min(1120px, calc(100% - 40px));
    max-width: none;
    margin: 0 auto;
    padding: 34px 0 80px;
}

.speaking-reasons .lesson-back {
    width: fit-content;
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding: 0 14px;
    color: var(--text);
    border: 1px solid var(--text);
    background: rgba(255,253,247,.78);
    text-decoration: none;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: .04em;
    box-shadow: 4px 4px 0 #bfe8ef;
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}

.speaking-reasons .lesson-back:hover {
    background: #e7ff59;
    transform: translate(-1px, -1px);
    box-shadow: 6px 6px 0 var(--text);
}

.speaking-reasons .header {
    position: relative;
    margin: 0 0 34px;
    padding: 48px 46px;
    color: #fff;
    background: #102331;
    text-align: left;
    overflow: hidden;
    box-shadow: 12px 12px 0 #bfe8ef;
}

.speaking-reasons .header::after {
    content: "07";
    position: absolute;
    right: 24px;
    bottom: -42px;
    color: rgba(231,255,89,.14);
    font: 900 180px/1 Georgia, serif;
    pointer-events: none;
}

.speaking-reasons .header h1 {
    position: relative;
    z-index: 1;
    max-width: 760px;
    margin: 0 0 14px;
    color: #fff;
    font: 700 clamp(38px, 5vw, 64px)/1.03 Georgia, "Songti SC", serif;
    letter-spacing: -.04em;
}

.speaking-reasons .header p {
    position: relative;
    z-index: 1;
    margin: 0;
    color: #c4d2d8;
    font-size: 15px;
}

.speaking-reasons .category-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.speaking-reasons .cat-card {
    min-height: 236px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 24px;
    border: 1px solid var(--text);
    border-radius: 0;
    background: var(--card);
    box-shadow: none;
}

.speaking-reasons .cat-card:nth-child(3n+2) { background: #eaf6f4; }
.speaking-reasons .cat-card:nth-child(3n) { background: #fff0e9; }
.speaking-reasons .cat-card:last-child { background: #e7ff59; }

.speaking-reasons .cat-card::before {
    width: 58px;
    height: 5px;
    background: #ff6b4a;
}

.speaking-reasons .cat-card:hover {
    border-color: var(--text);
    box-shadow: 8px 8px 0 var(--text);
    transform: translate(-4px, -4px);
}

.speaking-reasons .cat-icon { margin: 12px 0 26px; font-size: 34px; }
.speaking-reasons .cat-name { font: 700 24px/1.1 Georgia, "Songti SC", serif; }
.speaking-reasons .cat-desc { min-height: 44px; margin-top: 10px; color: #52656e; }
.speaking-reasons .cat-count { width: fit-content; margin-top: 20px; color: var(--text); background: transparent; border: 1px solid var(--text); border-radius: 0; }

.speaking-reasons .nav-bar {
    margin-bottom: 28px;
    padding: 22px 24px;
    color: #fff;
    border: 0;
    background: var(--text);
}

.speaking-reasons .nav-title { color: #e7ff59; font: 700 28px/1.1 Georgia, "Songti SC", serif; }
.speaking-reasons .btn { min-height: 44px; border-radius: 0; font-weight: 900; }
.speaking-reasons .btn-primary, .speaking-reasons .btn-success { color: var(--text); background: #e7ff59; border: 1px solid var(--text); }
.speaking-reasons .btn-primary:hover, .speaking-reasons .btn-success:hover { background: #d5f52c; }
.speaking-reasons .btn-outline { color: var(--text); border: 1px solid var(--text); background: #fff; }
.speaking-reasons .nav-bar .btn-outline { color: #fff; border-color: rgba(255,255,255,.45); background: transparent; }
.speaking-reasons .nav-bar .btn-outline:hover { color: var(--text); background: #e7ff59; border-color: #e7ff59; }

.speaking-reasons .progress-bar { height: 6px; background: #d6dcd7; }
.speaking-reasons .progress-fill { background: #ff6b4a; }
.speaking-reasons .match-item,
.speaking-reasons .sentence-card,
.speaking-reasons .phrase-bank,
.speaking-reasons .result-box {
    border-radius: 0;
    border-color: var(--border);
    box-shadow: 6px 6px 0 rgba(16,35,49,.08);
}

.speaking-reasons .match-item:hover { border-color: var(--text); transform: translateX(3px); }
.speaking-reasons .match-item.selected,
.speaking-reasons .phrase-chip.selected { color: var(--text); border-color: var(--text); background: #e7ff59; box-shadow: 4px 4px 0 var(--text); }
.speaking-reasons .match-item.matched { border-color: #2f8a58; background: #e8f4e9; }
.speaking-reasons .sentence-card { border-left: 5px solid #ff6b4a; }
.speaking-reasons .blank { color: var(--text); border-color: #809329; border-radius: 0; background: #f4facf; }
.speaking-reasons .phrase-chip { border-radius: 0; }
.speaking-reasons .phrase-chip:hover { border-color: var(--text); background: #f4facf; }
.speaking-reasons .tip-box { color: #6c4e15; border-radius: 0; background: #fff5d9; }

@media (max-width: 820px) {
    .speaking-reasons .category-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
    .speaking-reasons .container { width: min(100% - 28px, 1120px); padding-top: 22px; }
    .speaking-reasons .header { padding: 34px 24px; box-shadow: 7px 7px 0 #bfe8ef; }
    .speaking-reasons .header h1 { font-size: 39px; }
    .speaking-reasons .header::after { right: -18px; font-size: 126px; }
    .speaking-reasons .category-grid { grid-template-columns: 1fr; }
    .speaking-reasons .cat-card { min-height: 205px; }
    .speaking-reasons .nav-bar { align-items: flex-start; }
    .speaking-reasons .match-container { gap: 16px; }
}

@media (prefers-reduced-motion: reduce) {
    .speaking-reasons * { animation: none !important; transition: none !important; }
}