/* ============================================================
   QuickQ 服务条款 —— terms.css
   作用域：.main-terms
   强调色：暖金橙（--term-accent），与隐私政策页的极光青区分
   依赖：index.css（导航、尾部、通用组件）
   ============================================================ */


/* ============================================================
   01  条款 Hero
   ============================================================ */
.main-terms .legal-hero {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40vh;
    padding: 4rem 1rem 3rem;
    overflow: hidden;
    text-align: center;
    background: var(--bg-base);
}

.main-terms .legal-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse at 50% 30%, rgba(245, 166, 35, .08), transparent 70%),
        radial-gradient(ellipse at 20% 80%, rgba(79, 124, 255, .08), transparent 60%);
}

.main-terms .legal-hero .container {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.main-terms .legal-hero .badge {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    margin-bottom: .9rem;
    padding: .2rem 1rem .2rem .6rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--term-accent-border);
    background: var(--term-accent-soft);
    color: var(--term-accent);
    font-size: .75rem;
    font-weight: 500;
    letter-spacing: .5px;
}

.main-terms .legal-hero .badge i { font-size: .5rem; }

.main-terms .legal-hero h1 {
    max-width: 800px;
    color: #fff;
    font-size: clamp(2rem, 4.5vw, 3.4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -.03em;
}

.main-terms .legal-hero h1 .highlight {
    background: linear-gradient(135deg, #f5a623, #ffd166);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-terms .legal-hero .sub-headline {
    max-width: 720px;
    margin-top: .8rem;
    color: var(--text-muted);
    font-size: clamp(1rem, 1.1vw, 1.12rem);
    line-height: 1.8;
}

.main-terms .legal-hero .legal-stats {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: .6rem 1.6rem;
    margin-top: 1.4rem;
    padding: .65rem 2rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    background: rgba(15, 26, 48, .5);
}

.main-terms .legal-hero .legal-stats .item {
    color: var(--text-dim);
    font-size: .82rem;
}

.main-terms .legal-hero .legal-stats .item strong {
    color: var(--term-accent);
    font-weight: 700;
}


/* ============================================================
   02  目录导航（吸顶）
   ============================================================ */
.main-terms .toc-nav {
    position: sticky;
    top: 60px;
    z-index: 40;
    padding: 1.2rem 1rem;
    background: rgba(10, 17, 34, .85);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(14px);
    text-align: center;
}

.main-terms .toc-nav .toc-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .5rem .8rem;
    max-width: 900px;
    margin: 0 auto;
}

.main-terms .toc-nav .toc-links a {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .4rem 1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    background: rgba(15, 26, 48, .5);
    color: var(--text-muted);
    font-size: .8rem;
    font-weight: 500;
    text-decoration: none;
    transition: all .3s ease;
    white-space: nowrap;
}

.main-terms .toc-nav .toc-links a:hover {
    border-color: var(--term-accent-border);
    background: var(--term-accent-soft);
    color: #fff;
    transform: translateY(-1px);
}

.main-terms .toc-nav .toc-links a i {
    color: var(--term-accent);
    font-size: .75rem;
}


/* ============================================================
   03  通用区块头
   ============================================================ */
.main-terms .section-header {
    margin-bottom: 2rem;
    text-align: center;
}

.main-terms .section-badge {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    margin-bottom: .5rem;
    padding: .2rem 1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--term-accent-border);
    background: var(--term-accent-soft);
    color: var(--term-accent);
    font-size: .7rem;
    font-weight: 500;
    letter-spacing: .5px;
}

.main-terms .section-badge i { font-size: .7rem; }

.main-terms .section-title {
    color: #fff;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -.02em;
}

.main-terms .section-title .highlight {
    background: linear-gradient(135deg, #f5a623, #ffd166);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-terms .section-sub {
    max-width: 720px;
    margin: .4rem auto 0;
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.7;
}


/* ============================================================
   04  接入条件
   ============================================================ */
.main-terms .access-section {
    padding: 3.5rem 1rem 4rem;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
}

.main-terms .access-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.3rem;
    max-width: 1120px;
    margin: 1.5rem auto 0;
    padding: 0 1rem;
}

.main-terms .access-card {
    display: flex;
    flex-direction: column;
    padding: 1.8rem 1.5rem 1.6rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: rgba(15, 26, 48, .45);
    transition: .3s;
}

.main-terms .access-card:hover {
    border-color: var(--term-accent-border);
    transform: translateY(-4px);
    background: rgba(15, 26, 48, .65);
    box-shadow: 0 16px 40px rgba(0, 0, 0, .35);
}

.main-terms .access-card .access-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.main-terms .access-card .a-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--term-accent-border);
    background: linear-gradient(135deg, rgba(245, 166, 35, .16), rgba(79, 124, 255, .06));
    color: var(--term-accent);
    font-size: 1.25rem;
}

.main-terms .access-card .a-num {
    color: rgba(245, 166, 35, .3);
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -.03em;
    font-variant-numeric: tabular-nums;
}

.main-terms .access-card h4 {
    margin-bottom: .5rem;
    color: #fff;
    font-size: 1.08rem;
    font-weight: 700;
    letter-spacing: -.005em;
}

.main-terms .access-card > p {
    color: var(--text-muted);
    font-size: .86rem;
    line-height: 1.75;
    margin-bottom: 1rem;
}

.main-terms .access-card .access-list {
    display: grid;
    gap: .4rem;
    margin: 0;
    padding: .9rem 0 0;
    border-top: 1px dashed hsla(0, 0%, 100%, .07);
    list-style: none;
}

.main-terms .access-card .access-list li {
    display: flex;
    align-items: center;
    gap: .5rem;
    color: var(--text-dim);
    font-size: .78rem;
    line-height: 1.6;
}

.main-terms .access-card .access-list li i {
    flex-shrink: 0;
    color: var(--term-accent);
    font-size: .65rem;
}

.main-terms .access-footnote {
    max-width: 820px;
    margin: 1.6rem auto 0;
    padding: 0 1rem;
    color: var(--text-dim);
    font-size: .82rem;
    line-height: 1.75;
    text-align: center;
}

.main-terms .access-footnote i {
    margin-right: .3rem;
    color: var(--term-accent);
}

.main-terms .access-footnote a {
    color: var(--term-accent);
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px dashed var(--term-accent-border);
    transition: color .2s;
}

.main-terms .access-footnote a:hover { color: #fff; }


/* ============================================================
   05  账号规范（流程线）
   ============================================================ */
.main-terms .account-section {
    padding: 3.5rem 1rem 4rem;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.main-terms .account-flow {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.2rem;
    max-width: 1160px;
    margin: 1.5rem auto 0;
    padding: 0 1rem;
    position: relative;
}

.main-terms .account-flow::before {
    content: "";
    position: absolute;
    left: 3rem;
    right: 3rem;
    top: 40px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--term-accent-border), var(--term-accent-border), transparent);
    z-index: 0;
}

.main-terms .flow-step {
    position: relative;
    z-index: 1;
    padding: 1.6rem 1.3rem 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: rgba(15, 26, 48, .55);
    transition: .3s;
}

.main-terms .flow-step:hover {
    border-color: var(--term-accent-border);
    transform: translateY(-4px);
    background: rgba(15, 26, 48, .7);
    box-shadow: 0 16px 40px rgba(0, 0, 0, .35);
}

.main-terms .flow-step .flow-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: .9rem;
}

.main-terms .flow-step .flow-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 2px solid var(--bg-card);
    background: linear-gradient(135deg, var(--term-accent), #ff8c00);
    box-shadow: 0 6px 18px rgba(245, 166, 35, .3);
    color: #fff;
    font-size: 1rem;
}

.main-terms .flow-step .flow-step-num {
    color: var(--term-accent);
    font-size: .65rem;
    font-weight: 700;
    letter-spacing: 1px;
    font-variant-numeric: tabular-nums;
    opacity: .7;
}

.main-terms .flow-step h4 {
    margin-bottom: .4rem;
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -.005em;
}

.main-terms .flow-step p {
    color: var(--text-muted);
    font-size: .82rem;
    line-height: 1.75;
}


/* ============================================================
   06  行为准则（正负对照）
   ============================================================ */
.main-terms .conduct-section {
    padding: 3.5rem 1rem 4rem;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
}

.main-terms .conduct-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    max-width: 1160px;
    margin: 1.5rem auto 0;
    padding: 0 1rem;
}

.main-terms .conduct-card {
    display: flex;
    flex-direction: column;
    padding: 1.8rem 1.6rem 1.7rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: rgba(15, 26, 48, .45);
    transition: .3s;
}

.main-terms .conduct-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, .35);
}

.main-terms .conduct-card.conduct-do {
    border-top: 3px solid rgba(78, 230, 192, .55);
}

.main-terms .conduct-card.conduct-do:hover {
    border-color: rgba(78, 230, 192, .4);
}

.main-terms .conduct-card.conduct-dont {
    border-top: 3px solid rgba(239, 68, 68, .55);
}

.main-terms .conduct-card.conduct-dont:hover {
    border-color: rgba(239, 68, 68, .4);
}

.main-terms .conduct-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .6rem;
    margin-bottom: 1.1rem;
    padding-bottom: .9rem;
    border-bottom: 1px solid var(--border);
}

.main-terms .conduct-head .conduct-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    font-size: .95rem;
}

.main-terms .conduct-do .conduct-head .conduct-icon {
    background: rgba(78, 230, 192, .12);
    border: 1px solid rgba(78, 230, 192, .28);
    color: #4ee6c0;
}

.main-terms .conduct-dont .conduct-head .conduct-icon {
    background: rgba(239, 68, 68, .12);
    border: 1px solid rgba(239, 68, 68, .28);
    color: #ef4444;
}

.main-terms .conduct-head h3 {
    color: #fff;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -.01em;
}

.main-terms .conduct-head .conduct-tag {
    margin-left: auto;
    padding: .1rem .7rem;
    border-radius: var(--radius-full);
    font-size: .62rem;
    font-weight: 600;
    letter-spacing: .3px;
}

.main-terms .conduct-do .conduct-tag {
    background: rgba(78, 230, 192, .1);
    border: 1px solid rgba(78, 230, 192, .22);
    color: #4ee6c0;
}

.main-terms .conduct-dont .conduct-tag {
    background: rgba(239, 68, 68, .1);
    border: 1px solid rgba(239, 68, 68, .22);
    color: #ef4444;
}

.main-terms .conduct-list {
    display: grid;
    gap: .8rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.main-terms .conduct-list li {
    position: relative;
    padding-left: 1.5rem;
    color: var(--text-muted);
    font-size: .87rem;
    line-height: 1.8;
}

.main-terms .conduct-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .65em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.main-terms .conduct-do .conduct-list li::before {
    background: linear-gradient(135deg, #4ee6c0, #00d4ff);
    box-shadow: 0 0 10px rgba(78, 230, 192, .5);
}

.main-terms .conduct-dont .conduct-list li::before {
    background: linear-gradient(135deg, #ef4444, #f97316);
    box-shadow: 0 0 10px rgba(239, 68, 68, .5);
}

.main-terms .conduct-list li strong {
    color: #eaf0ff;
    font-weight: 600;
}


/* ============================================================
   07  禁止场景
   ============================================================ */
.main-terms .prohibited-section {
    padding: 3.5rem 1rem 4rem;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.main-terms .prohibited-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.1rem;
    max-width: 1160px;
    margin: 1.5rem auto 0;
    padding: 0 1rem;
}

.main-terms .prohibited-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.4rem 1.3rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: rgba(15, 26, 48, .4);
    transition: .3s;
}

.main-terms .prohibited-item:hover {
    border-color: rgba(239, 68, 68, .28);
    transform: translateY(-3px);
    background: rgba(15, 26, 48, .6);
    box-shadow: 0 14px 36px rgba(0, 0, 0, .35);
}

.main-terms .prohibited-item .pi-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(239, 68, 68, .25);
    background: rgba(239, 68, 68, .1);
    color: #f87171;
    font-size: .8rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    letter-spacing: -.02em;
}

.main-terms .prohibited-item h4 {
    margin-bottom: .3rem;
    color: #fff;
    font-size: .95rem;
    font-weight: 700;
    letter-spacing: -.005em;
    line-height: 1.35;
}

.main-terms .prohibited-item p {
    color: var(--text-muted);
    font-size: .8rem;
    line-height: 1.7;
}


/* ============================================================
   08  违规处理（梯度时间线）
   ============================================================ */
.main-terms .penalty-section {
    padding: 3.5rem 1rem 4rem;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
}

.main-terms .penalty-flow {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    max-width: 1160px;
    margin: 1.5rem auto 0;
    padding: 0 1rem;
}

.main-terms .penalty-step {
    position: relative;
    display: flex;
    flex-direction: column;
}

.main-terms .penalty-marker {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    position: relative;
}

.main-terms .penalty-marker .marker-dot {
    display: inline-block;
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    border-radius: 50%;
    border: 3px solid var(--bg-dark);
    z-index: 2;
}

.main-terms .penalty-marker .dot-1 {
    background: #4ade80;
    box-shadow: 0 0 14px rgba(74, 222, 128, .6);
}

.main-terms .penalty-marker .dot-2 {
    background: #f5a623;
    box-shadow: 0 0 14px rgba(245, 166, 35, .6);
}

.main-terms .penalty-marker .dot-3 {
    background: #f97316;
    box-shadow: 0 0 14px rgba(249, 115, 22, .6);
}

.main-terms .penalty-marker .dot-4 {
    background: #ef4444;
    box-shadow: 0 0 14px rgba(239, 68, 68, .6);
}

.main-terms .penalty-marker .marker-line {
    display: block;
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, rgba(74, 222, 128, .35), rgba(245, 166, 35, .35), rgba(239, 68, 68, .35));
}

.main-terms .penalty-marker .marker-line.last {
    background: transparent;
}

.main-terms .penalty-content {
    flex: 1;
    padding: 1.4rem 1.3rem 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: rgba(15, 26, 48, .45);
    margin-right: 1rem;
    transition: .3s;
}

.main-terms .penalty-step:last-child .penalty-content {
    margin-right: 0;
}

.main-terms .penalty-content:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, .4);
    background: rgba(15, 26, 48, .65);
}

.main-terms .penalty-step:nth-child(1) .penalty-content:hover { border-color: rgba(74, 222, 128, .35); }
.main-terms .penalty-step:nth-child(2) .penalty-content:hover { border-color: rgba(245, 166, 35, .35); }
.main-terms .penalty-step:nth-child(3) .penalty-content:hover { border-color: rgba(249, 115, 22, .35); }
.main-terms .penalty-step:nth-child(4) .penalty-content:hover { border-color: rgba(239, 68, 68, .35); }

.main-terms .penalty-content .penalty-tag {
    display: inline-block;
    margin-bottom: .5rem;
    padding: .15rem .7rem;
    border-radius: var(--radius-full);
    font-size: .62rem;
    font-weight: 700;
    letter-spacing: .5px;
}

.main-terms .penalty-content .tag-1 {
    background: rgba(74, 222, 128, .1);
    border: 1px solid rgba(74, 222, 128, .25);
    color: #4ade80;
}

.main-terms .penalty-content .tag-2 {
    background: rgba(245, 166, 35, .1);
    border: 1px solid rgba(245, 166, 35, .25);
    color: #f5a623;
}

.main-terms .penalty-content .tag-3 {
    background: rgba(249, 115, 22, .1);
    border: 1px solid rgba(249, 115, 22, .25);
    color: #f97316;
}

.main-terms .penalty-content .tag-4 {
    background: rgba(239, 68, 68, .1);
    border: 1px solid rgba(239, 68, 68, .25);
    color: #ef4444;
}

.main-terms .penalty-content h4 {
    margin-bottom: .4rem;
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -.005em;
}

.main-terms .penalty-content p {
    color: var(--text-muted);
    font-size: .82rem;
    line-height: 1.75;
}

.main-terms .penalty-note {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    max-width: 880px;
    margin: 2.2rem auto 0;
    padding: 1.5rem 1.7rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    border-left: 3px solid var(--term-accent);
    background: rgba(245, 166, 35, .04);
}

.main-terms .penalty-note .note-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    background: var(--term-accent-soft);
    border: 1px solid var(--term-accent-border);
    color: var(--term-accent);
    font-size: 1rem;
}

.main-terms .penalty-note .note-body h4 {
    margin-bottom: .35rem;
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
}

.main-terms .penalty-note .note-body p {
    color: var(--text-muted);
    font-size: .85rem;
    line-height: 1.75;
}


/* ============================================================
   09  条款变更
   ============================================================ */
.main-terms .changes-section {
    padding: 3.5rem 1rem 4rem;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.main-terms .changes-notice {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
    max-width: 1080px;
    margin: 1.5rem auto 0;
    padding: 0 1rem;
}

.main-terms .notice-card {
    padding: 1.6rem 1.4rem 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: rgba(15, 26, 48, .45);
    transition: .3s;
}

.main-terms .notice-card:hover {
    border-color: var(--term-accent-border);
    transform: translateY(-4px);
    background: rgba(15, 26, 48, .65);
    box-shadow: 0 16px 40px rgba(0, 0, 0, .35);
}

.main-terms .notice-card .notice-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    margin-bottom: .85rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--term-accent-border);
    background: linear-gradient(135deg, var(--term-accent-soft), rgba(79, 124, 255, .06));
    color: var(--term-accent);
    font-size: 1.15rem;
}

.main-terms .notice-card h4 {
    margin-bottom: .4rem;
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -.005em;
}

.main-terms .notice-card p {
    color: var(--text-muted);
    font-size: .84rem;
    line-height: 1.75;
}

.main-terms .changes-timeline {
    max-width: 820px;
    margin: 2.5rem auto 0;
    padding: 0 1rem;
    position: relative;
}

.main-terms .changes-timeline::before {
    content: "";
    position: absolute;
    left: calc(1rem + 80px);
    top: 12px;
    bottom: 12px;
    width: 2px;
    background: linear-gradient(180deg, var(--term-accent), rgba(79, 124, 255, .15), transparent);
    border-radius: 2px;
    opacity: .6;
}

.main-terms .timeline-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding-left: 1.6rem;
    position: relative;
}

.main-terms .timeline-item:last-child { margin-bottom: 0; }

.main-terms .timeline-item::before {
    content: "";
    position: absolute;
    left: calc(80px + .45rem);
    top: 8px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--term-accent);
    box-shadow: 0 0 12px rgba(245, 166, 35, .8);
    z-index: 2;
}

.main-terms .timeline-date {
    color: var(--term-accent);
    font-size: .82rem;
    font-weight: 700;
    letter-spacing: .3px;
    padding-top: .3rem;
    font-variant-numeric: tabular-nums;
    text-align: right;
}

.main-terms .timeline-content {
    padding: 1.1rem 1.3rem 1.2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: rgba(15, 26, 48, .4);
    transition: .3s;
}

.main-terms .timeline-content:hover {
    border-color: var(--term-accent-border);
    background: rgba(15, 26, 48, .6);
    transform: translateX(3px);
}

.main-terms .timeline-content h4 {
    margin-bottom: .4rem;
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -.005em;
}

.main-terms .timeline-content p {
    color: var(--text-muted);
    font-size: .85rem;
    line-height: 1.75;
}

.main-terms .changes-footnote {
    max-width: 820px;
    margin: 2rem auto 0;
    padding: 0 1rem;
    color: var(--text-dim);
    font-size: .82rem;
    line-height: 1.75;
    text-align: center;
}

.main-terms .changes-footnote i {
    margin-right: .3rem;
    color: var(--term-accent);
}


/* ============================================================
   10  相关条款
   ============================================================ */
.main-terms .linkage-section {
    padding: 3.5rem 1rem 4rem;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
}

.main-terms .linkage-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.3rem;
    max-width: 980px;
    margin: 1.5rem auto 0;
    padding: 0 1rem;
}

.main-terms .linkage-card {
    display: flex;
    align-items: center;
    gap: 1.1rem;
    padding: 1.5rem 1.5rem 1.5rem 1.4rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: rgba(15, 26, 48, .45);
    text-decoration: none;
    transition: .3s;
}

.main-terms .linkage-card:hover {
    border-color: var(--term-accent-border);
    transform: translateY(-3px);
    background: rgba(15, 26, 48, .65);
    box-shadow: 0 16px 40px rgba(0, 0, 0, .35);
}

.main-terms .linkage-card .linkage-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    border: 1px solid var(--term-accent-border);
    background: linear-gradient(135deg, var(--term-accent-soft), rgba(79, 124, 255, .06));
    color: var(--term-accent);
    font-size: 1.3rem;
}

.main-terms .linkage-card .linkage-body {
    flex: 1;
    min-width: 0;
}

.main-terms .linkage-card .linkage-body h4 {
    margin-bottom: .3rem;
    color: #fff;
    font-size: 1.02rem;
    font-weight: 700;
    letter-spacing: -.005em;
}

.main-terms .linkage-card .linkage-body p {
    color: var(--text-muted);
    font-size: .82rem;
    line-height: 1.7;
}

.main-terms .linkage-card .linkage-arrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    border-radius: 50%;
    color: var(--term-accent);
    font-size: .8rem;
    transition: transform .3s, background .3s;
}

.main-terms .linkage-card:hover .linkage-arrow {
    transform: translateX(4px);
    background: var(--term-accent-soft);
}


/* ============================================================
   11  联系与申诉
   ============================================================ */
.main-terms .contact-section {
    padding: 3.5rem 1rem 4rem;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.main-terms .contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
    max-width: 1080px;
    margin: 1.5rem auto 0;
    padding: 0 1rem;
}

.main-terms .contact-card {
    display: flex;
    flex-direction: column;
    padding: 1.7rem 1.4rem 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: rgba(15, 26, 48, .45);
    transition: .3s;
}

.main-terms .contact-card:hover {
    border-color: var(--term-accent-border);
    transform: translateY(-4px);
    background: rgba(15, 26, 48, .65);
    box-shadow: 0 16px 40px rgba(0, 0, 0, .35);
}

.main-terms .contact-card .c-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-bottom: .85rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--term-accent-border);
    background: linear-gradient(135deg, var(--term-accent-soft), rgba(79, 124, 255, .06));
    color: var(--term-accent);
    font-size: 1.2rem;
}

.main-terms .contact-card h4 {
    margin-bottom: .45rem;
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -.005em;
}

.main-terms .contact-card p {
    color: var(--text-muted);
    font-size: .85rem;
    line-height: 1.75;
}

.main-terms .contact-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: .8rem;
    margin-top: 2rem;
    padding: 0 1rem;
}

.main-terms .contact-cta .btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: .7rem 2rem;
    border-radius: var(--radius-full);
    font-size: .95rem;
    font-weight: 600;
    text-decoration: none;
    transition: all .3s ease;
}

.main-terms .contact-cta .btn-cta.primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    box-shadow: 0 4px 16px rgba(79, 124, 255, .25);
    color: #fff;
}

.main-terms .contact-cta .btn-cta.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(79, 124, 255, .35);
}

.main-terms .contact-cta .btn-cta.secondary {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
}

.main-terms .contact-cta .btn-cta.secondary:hover {
    transform: translateY(-2px);
    background: var(--term-accent-soft);
    border-color: var(--term-accent-border);
    color: #fff;
}


/* ============================================================
   12  响应式
   ============================================================ */

/* ---- 平板 ---- */
@media (max-width: 1024px) {
    .main-terms .access-grid { grid-template-columns: 1fr; max-width: 620px; }
    .main-terms .account-flow { grid-template-columns: repeat(2, 1fr); }
    .main-terms .account-flow::before { display: none; }
    .main-terms .prohibited-grid { grid-template-columns: repeat(2, 1fr); }
    .main-terms .penalty-flow { grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
    .main-terms .penalty-step:nth-child(2) .penalty-marker .marker-line { display: none; }
    .main-terms .penalty-content { margin-right: 0; }
    .main-terms .contact-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---- 中小屏 ---- */
@media (max-width: 820px) {
    .main-terms .legal-hero {
        min-height: auto;
        padding: 3rem 1rem 2.5rem;
    }
    .main-terms .legal-hero h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); }
    .main-terms .legal-hero .legal-stats {
        flex-wrap: wrap;
        justify-content: center;
        padding: .55rem 1rem;
    }

    .main-terms .toc-nav {
        top: 56px;
        padding: 1rem .8rem;
    }
    .main-terms .toc-nav .toc-links { gap: .4rem .5rem; }
    .main-terms .toc-nav .toc-links a {
        padding: .35rem .85rem;
        font-size: .75rem;
    }

    .main-terms .conduct-grid { grid-template-columns: 1fr; }
    .main-terms .changes-notice { grid-template-columns: 1fr; }
    .main-terms .contact-grid { grid-template-columns: 1fr; }
    .main-terms .linkage-grid { grid-template-columns: 1fr; }

    .main-terms .changes-timeline::before { left: calc(1rem + 65px); }
    .main-terms .timeline-item {
        grid-template-columns: 65px 1fr;
        gap: 1.2rem;
    }
    .main-terms .timeline-item::before { left: calc(65px + .45rem); }
    .main-terms .timeline-date { font-size: .75rem; }
}

/* ---- 手机 ---- */
@media (max-width: 600px) {
    .main-terms .prohibited-grid { grid-template-columns: 1fr; }
    .main-terms .penalty-flow { grid-template-columns: 1fr; }
    .main-terms .penalty-marker { margin-bottom: .8rem; }
    .main-terms .penalty-marker .marker-line { display: none; }

    .main-terms .contact-cta { flex-direction: column; }
    .main-terms .contact-cta .btn-cta {
        justify-content: center;
        width: 100%;
        max-width: 280px;
    }
}

/* ---- 极小屏 ---- */
@media (max-width: 480px) {
    .main-terms .legal-hero h1 { font-size: 1.6rem; }
    .main-terms .legal-hero .legal-stats .item { font-size: .75rem; }

    .main-terms .toc-nav {
        top: 52px;
        padding: .8rem .5rem;
    }
    .main-terms .toc-nav .toc-links { gap: .3rem .35rem; }
    .main-terms .toc-nav .toc-links a {
        padding: .3rem .7rem;
        font-size: .7rem;
    }
    .main-terms .toc-nav .toc-links a i { font-size: .65rem; }

    .main-terms .access-card { padding: 1.4rem 1.2rem 1.3rem; }
    .main-terms .access-card h4 { font-size: 1rem; }
    .main-terms .access-card > p { font-size: .82rem; }
    .main-terms .access-card .a-num { font-size: 1.8rem; }

    .main-terms .account-flow { grid-template-columns: 1fr; }
    .main-terms .flow-step { padding: 1.3rem 1.1rem 1.2rem; }

    .main-terms .conduct-card { padding: 1.4rem 1.2rem 1.3rem; }
    .main-terms .conduct-head h3 { font-size: 1rem; }
    .main-terms .conduct-head .conduct-tag { font-size: .55rem; }
    .main-terms .conduct-list li { font-size: .82rem; padding-left: 1.3rem; }
    .main-terms .conduct-list li::before { width: 6px; height: 6px; top: .7em; }

    .main-terms .prohibited-item { padding: 1.1rem 1rem; gap: .8rem; }
    .main-terms .prohibited-item .pi-num { width: 34px; height: 34px; font-size: .75rem; }
    .main-terms .prohibited-item h4 { font-size: .9rem; }
    .main-terms .prohibited-item p { font-size: .78rem; }

    .main-terms .penalty-content { padding: 1.2rem 1.1rem 1.3rem; }
    .main-terms .penalty-content h4 { font-size: .95rem; }
    .main-terms .penalty-content p { font-size: .78rem; }
    .main-terms .penalty-note { padding: 1.2rem 1.2rem; gap: .8rem; }

    .main-terms .notice-card { padding: 1.3rem 1.2rem; }
    .main-terms .notice-card h4 { font-size: .95rem; }
    .main-terms .notice-card p { font-size: .8rem; }

    .main-terms .timeline-item {
        grid-template-columns: 1fr;
        gap: .5rem;
        padding-left: 1rem;
        padding-top: .4rem;
    }
    .main-terms .changes-timeline::before { display: none; }
    .main-terms .timeline-item::before {
        left: 0;
        top: 1.1rem;
        width: 8px;
        height: 8px;
    }
    .main-terms .timeline-date { text-align: left; padding-left: 1.2rem; }
    .main-terms .timeline-content { padding: 1rem 1.1rem; }
    .main-terms .timeline-content h4 { font-size: .95rem; }
    .main-terms .timeline-content p { font-size: .8rem; }

    .main-terms .linkage-card {
        flex-direction: column;
        align-items: flex-start;
        padding: 1.3rem 1.2rem;
        gap: .8rem;
    }
    .main-terms .linkage-card .linkage-arrow { align-self: flex-end; }

    .main-terms .contact-card { padding: 1.4rem 1.1rem 1.3rem; }
    .main-terms .contact-card h4 { font-size: .95rem; }
    .main-terms .contact-card p { font-size: .8rem; }
}