/*!
 * 葵问答官网样式
 * 设计主题：向日葵 · 与微信小程序 Design Token 对齐
 * 断点：<= 480 手机  <= 768 大手机/小平板  <= 1024 平板  > 1024 桌面
 */

/* ============ Design Tokens ============ */
:root {
    --color-primary: #FFB800;
    --color-primary-dark: #E6A600;
    --color-primary-light: #FFCC33;
    --color-primary-bg: #FFF5D6;
    --color-accent: #FF9500;
    --color-warm: #F5A623;
    --color-coral: #FF7B4D;
    --color-leaf: #4A7C59;
    --color-leaf-bg: #E8F5E9;
    --color-earth: #8B4513;
    --color-info: #2196F3;
    --color-info-bg: #E3F2FD;

    --color-text: #1A1A1A;
    --color-text-regular: #333;
    --color-text-muted: #666;
    --color-text-weak: #999;

    --color-border: #EEE;
    --color-border-light: #F0F0F0;
    --color-bg: #FFFCF5;
    --color-bg-soft: #FAFAFA;
    --color-bg-card: #FFFFFF;

    --shadow-sm: 0 2px 8px rgba(255, 184, 0, 0.08);
    --shadow-md: 0 10px 32px rgba(255, 184, 0, 0.14);
    --shadow-lg: 0 18px 48px rgba(255, 184, 0, 0.18);
    --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.06);

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 999px;

    --header-h: 72px;

    --ease: cubic-bezier(.4, 0, .2, 1);
}

/* ============ Reset ============ */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
    margin: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font: inherit;
    color: inherit;
    background: transparent;
    border: 0;
    cursor: pointer;
    padding: 0;
}

ul,
ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

h1,
h2,
h3,
h4 {
    margin: 0;
    line-height: 1.25;
    letter-spacing: -0.01em;
}

p {
    margin: 0;
}

:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: 6px;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--color-primary);
    color: #000;
    padding: 10px 16px;
    font-weight: 600;
    z-index: 9999;
    border-radius: 0 0 8px 0;
}

.skip-link:focus {
    left: 0;
}

/* ============ Layout helpers ============ */
.container {
    width: 100%;
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }
}

/* ============ Buttons ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 16px;
    line-height: 1;
    transition: transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease), color .18s var(--ease);
    white-space: nowrap;
    min-height: 44px;
}

.btn__icon {
    display: inline-flex;
    font-size: 18px;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: #1A1A1A;
    box-shadow: 0 8px 24px rgba(255, 149, 0, 0.30);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(255, 149, 0, 0.36);
}

.btn--primary:active {
    transform: translateY(0);
}

.btn--ghost {
    background: #fff;
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

.btn--ghost:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
}

.btn--sm {
    padding: 8px 18px;
    font-size: 14px;
    min-height: 38px;
}

.btn--lg {
    padding: 16px 32px;
    font-size: 17px;
}

.btn--block {
    width: 100%;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 8px;
}

.dot--primary {
    background: var(--color-primary);
}

.dot--leaf {
    background: var(--color-leaf);
}

.dot--info {
    background: var(--color-info);
}

/* ============ Section header ============ */
.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
}

.section-head__eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--color-accent);
    background: var(--color-primary-bg);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    margin-bottom: 18px;
    text-transform: uppercase;
}

.section-head__title {
    font-size: clamp(26px, 4vw, 38px);
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--color-text);
}

.section-head__sub {
    color: var(--color-text-muted);
    font-size: clamp(15px, 1.6vw, 17px);
}

/* ============ Site header ============ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--header-h);
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.site-header__inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
}

.brand__logo {
    width: 36px;
    height: 36px;
    object-fit: contain;
    border-radius: 10px;
    background: var(--color-primary-bg);
    padding: 4px;
}

.brand__name {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0.5px;
}

.brand__slogan {
    font-size: 13px;
    color: var(--color-text-muted);
    padding-left: 12px;
    border-left: 1px solid var(--color-border);
    margin-left: 4px;
}

@media (max-width: 768px) {
    .brand__slogan {
        display: none;
    }
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 32px;
    font-weight: 500;
}

.site-nav>a:not(.btn) {
    color: var(--color-text-muted);
    transition: color .18s;
}

.site-nav>a:not(.btn):hover {
    color: var(--color-primary-dark);
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    position: relative;
    border-radius: 10px;
}

.menu-toggle span {
    position: absolute;
    left: 12px;
    right: 12px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform .2s var(--ease), opacity .2s;
}

.menu-toggle span:nth-child(1) {
    top: 15px;
}

.menu-toggle span:nth-child(2) {
    top: 21px;
}

.menu-toggle span:nth-child(3) {
    top: 27px;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 768px) {
    .site-nav {
        display: none;
    }

    .menu-toggle {
        display: inline-block;
    }
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 16px;
    padding: 20px 24px calc(20px + env(safe-area-inset-bottom));
    background: #fff;
    border-top: 1px solid var(--color-border-light);
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    z-index: 99;
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.1);
}

.mobile-menu[data-open="1"] {
    display: flex;
}

.mobile-menu>a:not(.btn) {
    padding: 12px 4px;
    color: var(--color-text-regular);
    border-bottom: 1px solid var(--color-border-light);
    font-size: 16px;
    font-weight: 500;
}

.mobile-menu>a.btn {
    margin-top: 4px;
}

/* ============ Hero ============ */
.hero {
    position: relative;
    padding: calc(var(--header-h) + 64px) 0 80px;
    overflow: hidden;
    background: linear-gradient(180deg, #FFF5D6 0%, #FFFCF5 45%, #FFFCF5 100%);
}

.hero__inner {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 56px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: #fff;
    color: var(--color-earth);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(255, 184, 0, 0.25);
}

.hero__title {
    font-size: clamp(26px, 3.8vw, 40px);
    font-weight: 800;
    line-height: 1.18;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
    white-space: nowrap;
}

.hero__title-hl {
    background: linear-gradient(135deg, #FFB800 0%, #FF9500 60%, #FF7B4D 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}

.hero__sub {
    font-size: clamp(18px, 2.2vw, 22px);
    font-weight: 600;
    color: var(--color-text-regular);
    margin-bottom: 14px;
}

.hero__desc {
    color: var(--color-text-muted);
    font-size: clamp(15px, 1.6vw, 17px);
    margin-bottom: 32px;
    max-width: 540px;
}

.hero__desc strong {
    color: var(--color-accent);
    font-weight: 600;
}

.hero__actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.hero__trust {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 24px;
}

.hero__trust li {
    display: inline-flex;
    align-items: center;
    font-size: 14px;
    color: var(--color-text-muted);
    font-weight: 500;
}

.hero__blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.55;
    z-index: 1;
    pointer-events: none;
}

.hero__blob--tl {
    top: -120px;
    left: -120px;
    width: 480px;
    height: 480px;
    background: var(--color-primary-light);
}

.hero__blob--br {
    bottom: -160px;
    right: -140px;
    width: 440px;
    height: 440px;
    background: #FFC58A;
    opacity: 0.45;
}

/* 二维码卡片 */
.hero__right {
    display: flex;
    justify-content: center;
    position: relative;
    z-index: 2;
}

.qr-card {
    position: relative;
    width: 100%;
    max-width: 340px;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-xl);
    padding: 28px 28px 24px;
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255, 184, 0, 0.1) inset;
    text-align: center;
    animation: qr-float 5s ease-in-out infinite;
}

@keyframes qr-float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-12px);
    }
}

.qr-card__head {
    margin-bottom: 18px;
}

.qr-card__tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--color-leaf-bg);
    color: var(--color-leaf);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
}

.qr-card__media {
    background: #fff;
    padding: 14px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 18px;
}

.qr-card__img {
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 12px;
}

.qr-card__title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
    line-height: 1.4;
}

.qr-card__hint {
    font-size: 13px;
    color: var(--color-text-muted);
}

@media (max-width: 900px) {
    .hero {
        padding: calc(var(--header-h) + 40px) 0 60px;
    }

    .hero__inner {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero__desc {
        margin-left: auto;
        margin-right: auto;
    }

    .hero__actions {
        justify-content: center;
    }

    .hero__trust {
        justify-content: center;
    }

    .qr-card {
        animation: none;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 28px;
        line-height: 1.22;
        white-space: normal;
    }

    .hero__actions .btn {
        flex: 1 1 100%;
    }

    .hero__trust {
        gap: 10px 16px;
    }

    .hero__trust li {
        font-size: 13px;
    }
}

/* ============ Plan (冲稳保展示) ============ */
.plan {
    padding: 90px 0;
    background: #fff;
}

.plan__board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.plan-card {
    position: relative;
    background: #fff;
    border: 2px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 28px 24px 24px;
    transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
    overflow: hidden;
}

.plan-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.plan-card--rush::before {
    background: linear-gradient(90deg, #FFB800, #FF9500);
}

.plan-card--stable::before {
    background: linear-gradient(90deg, #4A7C59, #6B9B7A);
}

.plan-card--safe::before {
    background: linear-gradient(90deg, #2196F3, #64B5F6);
}

.plan-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.plan-card--rush:hover {
    border-color: var(--color-primary);
}

.plan-card--stable:hover {
    border-color: var(--color-leaf);
}

.plan-card--safe:hover {
    border-color: var(--color-info);
}

.plan-card__head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.plan-card__tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 700;
}

.plan-card--rush .plan-card__tag {
    background: var(--color-primary-bg);
    color: var(--color-earth);
}

.plan-card--stable .plan-card__tag {
    background: var(--color-leaf-bg);
    color: var(--color-leaf);
}

.plan-card--safe .plan-card__tag {
    background: var(--color-info-bg);
    color: var(--color-info);
}

.plan-card__count {
    font-size: 28px;
    font-weight: 800;
    color: var(--color-text);
    font-feature-settings: 'tnum' on;
}

.plan-card__desc {
    color: var(--color-text-muted);
    font-size: 14px;
    margin-bottom: 18px;
    min-height: 44px;
}

.plan-card__list {
    display: grid;
    gap: 10px;
    margin-bottom: 22px;
}

.plan-card__list li {
    font-size: 14px;
    color: var(--color-text-regular);
    padding-left: 20px;
    position: relative;
}

.plan-card__list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.plan-card--stable .plan-card__list li::before {
    color: var(--color-leaf);
}

.plan-card--safe .plan-card__list li::before {
    color: var(--color-info);
}

.plan-card__bar {
    height: 8px;
    background: var(--color-border-light);
    border-radius: 4px;
    overflow: hidden;
}

.plan-card__bar-fill {
    display: block;
    height: 100%;
    border-radius: 4px;
    transition: width .6s var(--ease);
}

.plan-card--rush .plan-card__bar-fill {
    background: linear-gradient(90deg, #FFB800, #FF9500);
}

.plan-card--stable .plan-card__bar-fill {
    background: linear-gradient(90deg, #4A7C59, #6B9B7A);
}

.plan-card--safe .plan-card__bar-fill {
    background: linear-gradient(90deg, #2196F3, #64B5F6);
}

.plan__note {
    text-align: center;
    color: var(--color-text-weak);
    font-size: 13px;
    margin-top: 32px;
}

@media (max-width: 900px) {
    .plan__board {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .plan-card__desc {
        min-height: 0;
    }
}

/* ============ Features ============ */
.features {
    padding: 90px 0;
    background: var(--color-bg-soft);
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature {
    background: #fff;
    padding: 30px 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
    transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}

.feature:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
    border-color: rgba(255, 184, 0, 0.3);
}

.feature__icon {
    width: 56px;
    height: 56px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    background: var(--color-primary-bg);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
}

.feature__title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--color-text);
}

.feature__desc {
    color: var(--color-text-muted);
    font-size: 15px;
    line-height: 1.7;
}

@media (max-width: 900px) {
    .features__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .features__grid {
        grid-template-columns: 1fr;
    }
}

/* ============ Steps ============ */
.steps {
    padding: 90px 0;
    background: #fff;
}

.steps__list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    counter-reset: step;
}

.steps__item {
    position: relative;
    background: linear-gradient(180deg, #FFFCF5 0%, #fff 100%);
    padding: 32px 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
}

.steps__num {
    font-size: 44px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 14px;
    font-feature-settings: 'tnum' on;
    letter-spacing: -1px;
}

.steps__title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--color-text);
}

.steps__desc {
    color: var(--color-text-muted);
    font-size: 15px;
    line-height: 1.7;
}

@media (max-width: 900px) {
    .steps__list {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .steps__item {
        padding: 24px 22px;
    }

    .steps__num {
        font-size: 36px;
    }
}

/* ============ Audience ============ */
.audience {
    padding: 90px 0;
    background: var(--color-bg-soft);
}

.audience__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.audience__card {
    background: #fff;
    padding: 36px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.audience__icon {
    width: 60px;
    height: 60px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    background: linear-gradient(135deg, #FFF5D6, #FFE4B0);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
}

.audience__title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--color-text);
}

.audience__list li {
    padding: 8px 0 8px 26px;
    position: relative;
    color: var(--color-text-regular);
    font-size: 15px;
    line-height: 1.6;
}

.audience__list li::before {
    content: '🌻';
    position: absolute;
    left: 0;
    top: 8px;
    font-size: 14px;
}

@media (max-width: 768px) {
    .audience__grid {
        grid-template-columns: 1fr;
    }

    .audience__card {
        padding: 28px 24px;
    }
}

/* ============ Stats ============ */
.stats {
    padding: 70px 0;
    background: linear-gradient(135deg, #FFB800 0%, #FF9500 100%);
    color: #fff;
}

.stats__inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
}

.stats__cell {
    padding: 10px;
}

.stats__num {
    font-size: clamp(36px, 5vw, 52px);
    font-weight: 800;
    line-height: 1;
    font-feature-settings: 'tnum' on;
    color: #1A1A1A;
}

.stats__unit {
    font-size: 0.5em;
    font-weight: 700;
    margin-left: 4px;
    color: #1A1A1A;
}

.stats__label {
    margin-top: 10px;
    font-size: 15px;
    color: #1A1A1A;
    opacity: 0.82;
    font-weight: 500;
}

@media (max-width: 768px) {
    .stats__inner {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}

/* ============ FAQ ============ */
.faq {
    padding: 90px 0;
    background: #fff;
}

.faq__list {
    max-width: 840px;
    margin: 0 auto;
    display: grid;
    gap: 14px;
}

.faq-item {
    background: var(--color-bg-soft);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-light);
    transition: border-color .2s, box-shadow .2s;
}

.faq-item[open] {
    border-color: rgba(255, 184, 0, 0.4);
    box-shadow: var(--shadow-sm);
    background: #fff;
}

.faq-item__q {
    cursor: pointer;
    padding: 20px 24px;
    font-weight: 600;
    font-size: 16px;
    color: var(--color-text);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    list-style: none;
}

.faq-item__q::-webkit-details-marker {
    display: none;
}

.faq-item__q::after {
    content: '+';
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-primary-bg);
    color: var(--color-accent);
    font-size: 20px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform .2s, background .2s;
}

.faq-item[open] .faq-item__q::after {
    content: '−';
    transform: rotate(180deg);
    background: var(--color-primary);
    color: #1A1A1A;
}

.faq-item__a {
    padding: 0 24px 22px;
    color: var(--color-text-muted);
    font-size: 15px;
    line-height: 1.8;
}

@media (max-width: 480px) {
    .faq-item__q {
        padding: 18px 20px;
        font-size: 15px;
    }

    .faq-item__a {
        padding: 0 20px 20px;
        font-size: 14px;
    }
}

/* ============ CTA ============ */
.cta {
    padding: 80px 0;
    background: linear-gradient(180deg, #FFFCF5 0%, #FFF5D6 100%);
}

.cta__inner {
    background: #fff;
    padding: 44px 48px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 184, 0, 0.15);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
}

.cta__title {
    font-size: clamp(22px, 3vw, 30px);
    font-weight: 700;
    margin-bottom: 8px;
}

.cta__sub {
    color: var(--color-text-muted);
    font-size: 15px;
}

.cta__btn {
    flex-shrink: 0;
}

/* ============ CTA · 指南合集卡片栅格 ============ */
.cta__guides {
    margin-bottom: 56px;
}

.cta__guides-head {
    text-align: center;
    margin-bottom: 32px;
}

.cta__guides-title {
    font-size: clamp(20px, 2.6vw, 26px);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.cta__guides-sub {
    color: var(--color-text-muted);
    font-size: 14px;
}

.cta__guides-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.cta__guide-card {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 184, 0, 0.15);
    overflow: hidden;
    transition: transform .2s, box-shadow .2s, border-color .2s;
}

.cta__guide-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(255, 184, 0, 0.4);
}

.cta__guide-card a {
    display: block;
    padding: 22px 24px 20px;
    color: inherit;
    text-decoration: none;
}

.cta__guide-card--featured {
    background: linear-gradient(135deg, #FFF8E1 0%, #FFF5D6 100%);
    border: 1px solid rgba(255, 184, 0, 0.35);
}

.cta__guide-card--more {
    background: var(--color-bg-soft);
    border: 1px dashed rgba(255, 184, 0, 0.4);
    text-align: center;
}

.cta__guide-card--more a {
    padding-top: 28px;
    padding-bottom: 28px;
}

.cta__guide-more-icon {
    display: inline-block;
    font-size: 30px;
    margin-bottom: 8px;
}

.cta__guide-eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--color-accent);
    background: var(--color-primary-bg);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    margin-bottom: 12px;
}

.cta__guide-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 6px;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.cta__guide-card--featured .cta__guide-title {
    font-size: 19px;
}

.cta__guide-desc {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.65;
    margin: 0 0 12px;
}

.cta__guide-cta {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-accent);
    transition: color .15s;
}

.cta__guide-card:hover .cta__guide-cta {
    color: var(--color-primary-dark);
}

@media (max-width: 768px) {
    .cta__inner {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
        padding: 32px 24px;
    }

    .cta__btn {
        align-self: center;
    }

    .cta__guides {
        margin-bottom: 40px;
    }

    .cta__guides-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .cta__guide-card--featured {
        grid-column: auto;
    }

    .cta__guide-card a {
        padding: 18px 20px 16px;
    }

    .cta__guide-title,
    .cta__guide-card--featured .cta__guide-title {
        font-size: 16px;
    }
}

/* ============ Footer ============ */
.site-footer {
    background: #1A1A1A;
    color: #C9CDD4;
    padding: 64px 0 24px;
    padding-bottom: calc(24px + env(safe-area-inset-bottom));
}

.site-footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.brand--footer .brand__name {
    color: #fff;
}

.site-footer__desc {
    margin-top: 14px;
    font-size: 14px;
    line-height: 1.7;
    color: #8B8F97;
    max-width: 320px;
}

.site-footer__col h4 {
    color: #fff;
    font-size: 15px;
    margin-bottom: 18px;
}

.site-footer__col a {
    display: block;
    color: #8B8F97;
    font-size: 14px;
    margin-bottom: 10px;
    transition: color .2s;
}

.site-footer__col a:hover {
    color: var(--color-primary);
}

.site-footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid #2A2A2A;
    font-size: 13px;
    color: #666A72;
    gap: 16px;
    flex-wrap: wrap;
}

.site-footer__disclaimer {
    color: #555;
}

.site-footer__beian {
    color: #666A72;
    font-size: 13px;
    transition: color .18s;
    margin-left: auto;
}

.site-footer__beian:hover {
    color: var(--color-primary);
}

@media (max-width: 768px) {
    .site-footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .site-footer__brand {
        grid-column: 1 / -1;
    }

    .site-footer__bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .site-footer {
        padding-top: 48px;
    }

    .site-footer__grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
}

/* ============ Mobile Sticky CTA ============ */
.mobile-cta {
    display: none;
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: calc(12px + env(safe-area-inset-bottom));
    z-index: 95;
}

.mobile-cta__btn {
    width: 100%;
    padding: 16px 24px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, #FFB800 0%, #FF9500 100%);
    color: #1A1A1A;
    font-weight: 700;
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 12px 32px rgba(255, 149, 0, 0.45);
    min-height: 52px;
}

.mobile-cta__btn:active {
    transform: scale(0.98);
}

.mobile-cta__icon {
    font-size: 20px;
}

@media (max-width: 768px) {
    .mobile-cta {
        display: block;
    }

    /* 给底部内容留空,避免被 CTA 盖住 */
    .site-footer {
        padding-bottom: calc(100px + env(safe-area-inset-bottom));
    }
}

/* ============ QR Modal ============ */
.qr-modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-modal[hidden] {
    display: none;
}

.qr-modal__mask {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.qr-modal__panel {
    position: relative;
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 32px 28px 28px;
    width: calc(100% - 48px);
    max-width: 360px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    animation: modal-in .25s var(--ease);
}

@keyframes modal-in {
    from {
        transform: translateY(20px) scale(.96);
        opacity: 0;
    }

    to {
        transform: none;
        opacity: 1;
    }
}

.qr-modal__close {
    position: absolute;
    top: 10px;
    right: 14px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 24px;
    color: var(--color-text-muted);
    background: var(--color-bg-soft);
}

.qr-modal__close:hover {
    background: var(--color-border);
}

.qr-modal__title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 18px;
    color: var(--color-text);
}

.qr-modal__media {
    background: var(--color-primary-bg);
    padding: 16px;
    border-radius: var(--radius-lg);
    margin-bottom: 14px;
}

.qr-modal__media img {
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 10px;
    background: #fff;
}

.qr-modal__hint {
    color: var(--color-text-muted);
    font-size: 14px;
    margin-bottom: 6px;
}

.qr-modal__tip {
    color: var(--color-text-weak);
    font-size: 13px;
}

/* ============ Animations ============ */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
        scroll-behavior: auto !important;
    }
}

/* ============ Contact Modal ============ */
.contact-modal {
    position: fixed;
    inset: 0;
    z-index: 210;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-modal[hidden] {
    display: none;
}

.contact-modal__mask {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.contact-modal__panel {
    position: relative;
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 32px 28px 28px;
    width: calc(100% - 48px);
    max-width: 380px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    animation: modal-in .25s var(--ease);
}

.contact-modal__close {
    position: absolute;
    top: 10px;
    right: 14px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 24px;
    color: var(--color-text-muted);
    background: var(--color-bg-soft);
}

.contact-modal__close:hover {
    background: var(--color-border);
}

.contact-modal__icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: 20px;
    background: linear-gradient(135deg, #FFF5D6, #FFE4B0);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}

.contact-modal__title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--color-text);
}

.contact-modal__sub {
    color: var(--color-text-muted);
    font-size: 14px;
    margin-bottom: 22px;
}

.contact-modal__wx {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--color-primary-bg);
    border: 1px dashed rgba(255, 149, 0, 0.4);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
}

.contact-modal__wx-label {
    flex-shrink: 0;
    font-size: 13px;
    color: var(--color-earth);
    font-weight: 600;
}

.contact-modal__wx-id {
    flex: 1;
    font-family: 'SFMono-Regular', Consolas, Menlo, monospace;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 1px;
    text-align: left;
    user-select: all;
    -webkit-user-select: all;
}

.contact-modal__copy {
    flex-shrink: 0;
    padding: 8px 18px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: #1A1A1A;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(255, 149, 0, 0.3);
    min-height: 36px;
    transition: transform .15s, box-shadow .15s;
}

.contact-modal__copy:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(255, 149, 0, 0.38);
}

.contact-modal__copy:active {
    transform: translateY(0);
}

.contact-modal__copy[data-copied="1"] {
    background: var(--color-leaf-bg);
    color: var(--color-leaf);
    box-shadow: none;
}

.contact-modal__tip {
    color: var(--color-text-muted);
    font-size: 13px;
    line-height: 1.6;
}

@media (max-width: 480px) {
    .contact-modal__panel {
        padding: 28px 22px 22px;
    }

    .contact-modal__wx-id {
        font-size: 16px;
    }
}