/* ===========================================
   contact_us.css — Contact 页面专用样式
   视图：information/contact/contact_us.html

   布局结构（两块独立区域，背景交替）：
   1. contact-section--form     — 纯白底 #fff
   2. contact-section--benefits — 浅暖灰底 var(--color-bg)，与白色可区分
   页底收束：components/editorial_cta.css（模板 include）

   布局令牌见 information.css :root
   注意：page-contact 在 <body>，勿写 .page-contact.info-page--marketing（无效）
=========================================== */

/* ── 主内容区：解除 1200px 限制，由 section 自行控制 ── */
body.page-contact .info-page--marketing .lp-main--full {
    max-width: none;
    padding: 0;
}

body.page-contact .info-page--marketing .lp-content--full {
    background: transparent;
    border: none !important;
    box-shadow: none !important;
    padding: 0;
}

body.page-contact .info-page--marketing {
    min-height: auto;
}

body.page-contact .lp-content--full section[id] {
    margin-bottom: 0;
}

/* 内层内容宽度 1200px */
.contact-section__inner {
    max-width: var(--lp-content-max, 1200px);
    margin: 0 auto;
    padding: 0 var(--lp-spacing-lg, 24px);
}

.contact-section__inner--center {
    text-align: center;
}

/* ── Hero：与 Legal/FAQ 同阶矮高（Contact 母版是 page-contact，不吃 page-info 规则）── */
body.page-contact .lp-hero--marketing:not(.lp-hero--has-bg) {
    margin-bottom: 0;
    min-height: clamp(200px, 28vw, 300px);
    padding: clamp(48px, 6vw, 72px) var(--lp-spacing-lg, 24px);
    box-sizing: border-box;
    background: linear-gradient(
        160deg,
        var(--color-primary, #333) 0%,
        #5f5b54 45%,
        var(--color-accent, #205058) 100%
    );
}

body.page-contact .lp-hero--marketing.lp-hero--has-bg .lp-hero__bg {
    margin-bottom: 0;
    min-height: clamp(200px, 28vw, 300px);
    padding: clamp(48px, 6vw, 72px) 0;
    box-sizing: border-box;
}

body.page-contact .lp-hero--marketing:not(.lp-hero--has-bg)::before {
    background: rgba(15, 23, 42, 0.08);
}

body.page-contact .lp-hero--marketing .lp-hero-icon {
    display: none;
}

body.page-contact .lp-hero--marketing .lp-hero-content {
    max-width: var(--lp-content-max, 1200px);
    margin: 0 auto;
    font-family: var(--font-sans);
}

body.page-contact .lp-hero--marketing .lp-hero-title {
    font-family: var(--font-sans);
    font-size: var(--lp-font-size-hero-title, clamp(1.75rem, 3.5vw, 2.5rem));
    font-weight: var(--lp-font-weight-heading, 400);
    line-height: 1.25;
    letter-spacing: -0.01em;
    color: #fff;
}

body.page-contact .lp-hero--marketing .lp-hero-subtitle {
    max-width: 720px;
    font-family: var(--font-sans);
    font-size: var(--lp-font-size-hero-sub, clamp(1rem, 1.6vw, 1.125rem));
    font-weight: 400;
    line-height: var(--lp-line-height-body, 1.5);
    color: rgba(255, 255, 255, 0.92);
}

/* ════════════════════════════════════════════
   区域一：表单 + 侧栏联系方式
   全宽背景色块 → 内层 1200px → 左右白卡片（阴影）
   ════════════════════════════════════════════ */
.contact-section {
    width: 100%;
    margin: 0;
}

.contact-section--form {
    padding: clamp(56px, 8vw, 80px) 0;
    background: var(--color-surface, #fff);
    scroll-margin-top: var(--lp-marketing-hero-offset, calc(72px + 46px));
}

.contact-section--benefits {
    padding: clamp(56px, 8vw, 80px) 0 clamp(56px, 7vw, 72px);
    background: var(--color-bg, #f7f6f4);
}

/* 双栏：左表单略宽 */
.contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
    gap: var(--lp-spacing-xl, 32px);
    align-items: stretch;
}

/* 白底 section 上的卡片：加强阴影以便与白底区分 */
.contact-form-panel,
.contact-side-panel {
    padding: clamp(28px, 4vw, 40px);
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #e2e0dc);
    border-radius: var(--radius-lg, 14px);
    box-shadow: var(--shadow-lg, 0 20px 48px rgba(44, 41, 38, 0.12));
}

/* ── 提交中：按钮内 spinner + Sending… ── */
.contact-submit-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: contact-submit-spin 0.75s linear infinite;
    flex-shrink: 0;
}

.contact-form-submit.is-loading {
    pointer-events: none;
    opacity: 0.92;
}

.contact-submit-text {
    display: inline;
}

.contact-submit-loading {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.contact-form-submit.is-loading .contact-submit-text {
    display: none;
}

.contact-form-submit.is-loading .contact-submit-loading {
    display: inline-flex;
}

@keyframes contact-submit-spin {
    to {
        transform: rotate(360deg);
    }
}

@media (prefers-reduced-motion: reduce) {
    .contact-submit-spinner {
        animation-duration: 1.5s;
    }
}

.contact-heading {
    margin: 0 0 var(--lp-spacing-md, 16px);
    font-family: var(--font-sans);
    font-size: var(--lp-font-size-h2, 1.5rem);
    font-weight: var(--lp-font-weight-heading, 400);
    line-height: 1.333;
    color: var(--lp-text-primary, #202124);
}

.contact-heading--center {
    text-align: center;
}

.contact-lead {
    margin: 0 0 var(--lp-spacing-lg, 24px);
    font-family: var(--font-sans);
    font-size: var(--lp-font-size-body, 1rem);
    font-weight: 400;
    color: var(--lp-text-secondary, #5f6368);
    line-height: var(--lp-line-height-body, 1.5);
}

.contact-lead--center {
    text-align: center;
    max-width: 40rem;
    margin-left: auto;
    margin-right: auto;
}

.contact-form-note,
.contact-response-note {
    font-size: 0.875rem;
    color: var(--lp-text-muted, #80868b);
    line-height: 1.6;
}

.contact-form-note {
    margin: 0 0 var(--lp-spacing-lg, 24px);
}

.contact-required {
    color: #d93025;
}

.contact-form {
    display: grid;
    gap: var(--lp-spacing-md, 16px);
}

.contact-form-row {
    display: grid;
    gap: var(--lp-spacing-md, 16px);
}

.contact-form-row--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.contact-form-field {
    display: grid;
    gap: 6px;
}

.contact-form-field span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--lp-text-primary, #202124);
}

.contact-form-field input,
.contact-form-field textarea {
    width: 100%;
    padding: 12px 14px;
    font: inherit;
    font-size: 0.9375rem;
    color: var(--lp-text-primary, #202124);
    background: #fff;
    border: 1px solid var(--lp-border, #dadce0);
    border-radius: 8px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form-field textarea {
    resize: vertical;
    min-height: 140px;
}

.contact-form-field input:focus,
.contact-form-field textarea:focus {
    outline: none;
    border-color: var(--color-accent, #205058);
    box-shadow: 0 0 0 3px rgba(var(--color-accent-rgb), 0.15);
}

.contact-form-consent {
    width: 100%;
}

.contact-checkbox-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.contact-checkbox-row > input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    flex-shrink: 0;
    accent-color: var(--color-accent, #205058);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    cursor: pointer;
}

.contact-checkbox-row__body {
    flex: 1;
    min-width: 0;
}

.contact-checkbox-label {
    display: block;
    font-size: 0.8125rem;
    line-height: 1.5;
    color: #5f6368;
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
}

.contact-consent-summary {
    font-weight: 500;
    color: #2c3e50;
}

.contact-consent-summary a,
.contact-form-legal a {
    color: #5c5650;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.contact-consent-summary a:hover,
.contact-form-legal a:hover {
    color: var(--color-accent-hover, #174248);
}

.contact-form-legal {
    margin: 6px 0 0;
    padding: 0;
    font-size: 0.6875rem;
    line-height: 1.5;
    color: #9aa0a6;
}

/* TikTok Lead Form：同意区在上，全宽主按钮在下 */
.contact-form-submit-area {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 8px;
    padding-top: 18px;
    border-top: 1px solid var(--lp-border-light, #e8eaed);
}

.contact-form-submit {
    width: 100%;
    min-height: 48px;
    padding: 14px 20px;
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: 10px;
}

.contact-response-note {
    margin: var(--lp-spacing-lg, 24px) 0 0;
    padding-top: var(--lp-spacing-lg, 24px);
    border-top: 1px solid var(--lp-border-light, #e8eaed);
}

.contact-side-block {
    margin-top: var(--lp-spacing-lg, 24px);
    padding-top: var(--lp-spacing-lg, 24px);
    border-top: 1px solid var(--lp-border-light, #e8eaed);
}

.contact-side-block:first-of-type {
    margin-top: var(--lp-spacing-md, 16px);
}

.contact-side-block h4 {
    margin: 0 0 var(--lp-spacing-sm, 8px);
    font-family: var(--font-sans);
    font-size: var(--lp-font-size-h4, 1.125rem);
    font-weight: var(--lp-font-weight-subhead, 500);
    color: var(--lp-text-primary, #202124);
}

.contact-side-block p {
    margin: 0 0 4px;
    font-family: var(--font-sans);
    font-size: var(--lp-font-size-body, 1rem);
    line-height: var(--lp-line-height-body, 1.5);
    color: var(--lp-text-secondary, #5f6368);
}

.contact-side-line {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: baseline;
}

.contact-side-link {
    color: var(--color-accent-hover, #174248);
    text-decoration: none;
    font-weight: 500;
}

.contact-side-link:hover {
    text-decoration: underline;
}

.contact-side-highlight {
    margin-top: var(--lp-spacing-md, 16px);
    padding: var(--lp-spacing-md, 16px);
    background: var(--color-bg, #f7f6f4);
    border: 1px solid var(--color-border, #e2e0dc);
    border-radius: 8px;
}

.contact-side-highlight h5 {
    margin: 0 0 4px;
    font-family: var(--font-sans);
    font-size: var(--lp-font-size-nav, 0.875rem);
    font-weight: var(--lp-font-weight-subhead, 500);
}

.contact-side-highlight p {
    margin: 0;
    font-family: var(--font-sans);
    font-size: var(--lp-font-size-nav, 0.875rem);
    line-height: var(--lp-line-height-body, 1.5);
    color: var(--lp-text-secondary, #5f6368);
}

/* ════════════════════════════════════════════
   区域二：A few ways to begin（浅暖灰底 + 白卡片 · 三卡一行）
   ════════════════════════════════════════════ */
.contact-benefits-header {
    max-width: 40rem;
    margin: 0 auto var(--lp-spacing-xl, 32px);
    text-align: center;
}

.contact-benefits-header .contact-heading {
    margin: 0 0 var(--lp-spacing-sm, 8px);
}

.contact-benefits-header .contact-lead {
    margin: 0;
}

.contact-value-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--lp-spacing-lg, 24px);
    text-align: center;
}

/* 卡片：与 About Values 一致 — 图标 / 标题 / 正文居中 */
.contact-value-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--lp-spacing-xl, 32px) var(--lp-spacing-lg, 24px);
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #e2e0dc);
    border-radius: var(--radius-lg, 14px);
    box-shadow: var(--shadow-md, 0 8px 24px rgba(44, 41, 38, 0.08));
    transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.contact-value-card:hover {
    border-color: var(--color-accent-light, #b8a898);
    box-shadow: var(--shadow-md, 0 8px 24px rgba(44, 41, 38, 0.1));
    transform: translateY(-3px);
}

.contact-value-card__icon {
    width: 52px;
    height: 52px;
    margin-bottom: var(--lp-spacing-md, 16px);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent-light, #b8a898) 0%, var(--color-accent, #205058) 100%);
    color: #fff;
}

.contact-value-card h3 {
    margin: 0 0 var(--lp-spacing-sm, 8px);
    font-family: var(--font-sans);
    font-size: var(--lp-font-size-h3, 1.25rem);
    font-weight: var(--lp-font-weight-subhead, 500);
    line-height: 1.4;
}

.contact-value-card p {
    margin: 0;
    max-width: 280px;
    font-family: var(--font-sans);
    font-size: var(--lp-font-size-body, 1rem);
    line-height: var(--lp-line-height-body, 1.5);
    color: var(--lp-text-secondary, #5f6368);
}

@media (max-width: 992px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-value-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .contact-form-row--2 {
        grid-template-columns: 1fr;
    }

    .contact-form-panel,
    .contact-side-panel {
        padding: var(--lp-spacing-lg, 24px);
    }

    /* iOS Safari：<16px 聚焦缩放 → 收起后横向滚动 / 页面被撑大 */
    .contact-form-field input,
    .contact-form-field textarea {
        font-size: 16px;
        touch-action: manipulation;
    }
}
