/* =========
     header
   ========= */

/* 顶部导航：吸顶 + 毛玻璃背景 */
.hdr {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: rgba(255, 255, 255, 0.94);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    backdrop-filter: saturate(180%) blur(14px);
    transition: box-shadow 0.3s ease;
}

/* 页面滚动后出现阴影 */
.hdr-scrolled {
    box-shadow: 0 6px 24px rgba(41, 7, 92, 0.08);
}

.hdr-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--app-header-height);
    padding-bottom: 10px;
}

.hdr-logo {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
}

.hdr-logo img {
    display: block;
    width: 135px;
    height: auto;
}

.hdr-nav-list {
    display: flex;
    align-items: center;
    gap: 28px;
    margin: 0;
    padding: 0;
    list-style: none;
}

/* 导航链接：悬停时底部出现渐变下划线 */
.hdr-nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 6px 0;
    font-size: 15px;
    font-weight: 400;
    line-height: 1.4;
    color: var(--app-color-ink);
    text-decoration: none;
    transition: color 0.25s ease;
}

.hdr-nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    border-radius: 2px;
    background: var(--app-gradient-brand);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.3s ease;
}

.hdr-nav-link:hover {
    color: var(--app-color-primary);
}

.hdr-nav-link:hover::after {
    transform: scaleX(1);
}

.hdr-actions {
    display: flex;
    align-items: center;
    gap: 26px;
}

.hdr-signin {
    font-size: 15px;
    line-height: 1.4;
    color: var(--app-color-ink);
    text-decoration: none;
    transition: color 0.25s ease;
}

.hdr-signin:hover {
    color: var(--app-color-primary);
}

.hdr-cta {
    padding: 0 20px;
}

/* 汉堡菜单按钮（平板与手机端显示） */
.hdr-toggle {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--app-color-border);
    border-radius: 12px;
    background: var(--app-color-white);
    cursor: pointer;
}

.hdr-toggle-bar {
    display: block;
    width: 20px;
    height: 2px;
    border-radius: 2px;
    background: var(--app-color-ink);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* 菜单打开时三条线变为关闭图标 */
.hdr-menu-open .hdr-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hdr-menu-open .hdr-toggle-bar:nth-child(2) {
    opacity: 0;
}

.hdr-menu-open .hdr-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* 下拉菜单面板 */
.hdr-mobile {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--app-color-white);
    border-top: 1px solid var(--app-color-border);
    box-shadow: 0 24px 40px rgba(41, 7, 92, 0.12);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
}

.hdr-menu-open .hdr-mobile {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.hdr-mobile-list {
    margin: 0;
    padding: 8px 0 0;
    list-style: none;
}

.hdr-mobile-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
    border-bottom: 1px solid var(--app-color-border);
    font-size: 17px;
    font-weight: 500;
    color: var(--app-color-ink);
    text-decoration: none;
}

.hdr-mobile-link i {
    font-size: 20px;
    color: var(--app-color-primary);
}

.hdr-mobile-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 20px 0 24px;
}

.hdr-mobile-btn {
    width: 100%;
    height: 50px;
}

@media (max-width: 1199.98px) {
    .hdr-inner {
        justify-content: flex-start;
        gap: 12px;
        padding-bottom: 0;
    }

    .hdr-nav,
    .hdr-signin {
        display: none;
    }

    .hdr-actions {
        margin-left: auto;
    }

    .hdr-cta {
        height: 44px;
        padding: 0 18px;
        font-size: 15px;
    }

    .hdr-toggle {
        display: inline-flex;
    }

    .hdr-mobile {
        display: block;
    }
}

@media (max-width: 575.98px) {
    .hdr-logo img {
        width: 112px;
    }

    .hdr-actions {
        display: none;
    }

    .hdr-toggle {
        margin-left: auto;
    }

    .hdr-mobile-actions {
        grid-template-columns: 1fr;
    }
}

/* =========
     header
   ========= */


/* =========
     hero
   ========= */

.hero {
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #F0E6FF 0%, #F8F2FF 100%);
}

/* 动态背景容器：未加载完成前显示静态图 */
.hero-media {
    background-color: #EFE4FF;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-media-asset {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-inner {
    position: relative;
    z-index: 1;
}

/* 首屏文字进场动画 */
.hero-content {
    max-width: 440px;
    animation: hero-fade-up 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.hero-eyebrow {
    margin: 0;
    font-size: 13px;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--app-color-primary);
}

.hero-title {
    margin: 28px 0 0;
    font-size: 80px;
    font-weight: 600;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--app-color-deep);
}

.hero-desc {
    max-width: 410px;
    margin: 26px 0 0;
    font-size: 18px;
    font-weight: 400;
    line-height: 27px;
    color: var(--app-color-muted);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 13px;
    margin-top: 25px;
}

.hero-btn-video {
    font-size: 22px;
    color: var(--app-color-peach);
}

.hero-checks {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 14px;
    margin: 26px 0 0;
    padding: 0;
    list-style: none;
}

.hero-check {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-size: 12px;
    line-height: 1.4;
    color: var(--app-color-muted);
}

.hero-check i {
    font-size: 14px;
}

@keyframes hero-fade-up {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

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

/* 桌面端：动态画面铺满整个首屏，文字叠加在左侧 */
@media (min-width: 1200px) {
    .hero {
        min-height: 713px;
    }

    .hero-media {
        position: absolute;
        inset: 0;
    }

    .hero-inner {
        display: flex;
        align-items: center;
        min-height: 713px;
        padding-bottom: 20px;
    }
}

/* 平板与手机端：文字在上，动态画面在下 */
@media (max-width: 1199.98px) {
    .hero {
        display: flex;
        flex-direction: column;
    }

    .hero-inner {
        order: 1;
        padding-top: 56px;
        padding-bottom: 40px;
    }

    .hero-content {
        max-width: 620px;
    }

    .hero-title {
        font-size: 64px;
    }

    .hero-desc {
        max-width: 520px;
    }

    .hero-media {
        order: 2;
        position: relative;
        width: calc(100% - var(--app-wrap-gutter) * 2);
        max-width: var(--app-wrap-width);
        aspect-ratio: 16 / 9;
        margin: 0 auto 56px;
        border-radius: 24px;
        overflow: hidden;
        box-shadow: 0 24px 48px rgba(41, 7, 92, 0.12);
    }
}

@media (max-width: 767.98px) {
    .hero-inner {
        padding-top: 40px;
        padding-bottom: 32px;
    }

    .hero-title {
        margin-top: 20px;
        font-size: 46px;
    }

    .hero-desc {
        margin-top: 20px;
        font-size: 16px;
        line-height: 25px;
    }

    .hero-media {
        aspect-ratio: 4 / 3;
        margin-bottom: 40px;
        border-radius: 20px;
    }

    .hero-media-asset {
        object-position: 85% center;
    }
}

@media (max-width: 575.98px) {
    .hero-btn {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .hero-content {
        animation: none;
    }
}

/* =========
     hero
   ========= */


/* =========
     features
   ========= */

.feat {
    padding: 111px 0 116px;
}

/* 区块标题行：左标题，右说明 */
.feat-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    margin-bottom: 40px;
}

.feat-title {
    margin: 14px 0 0;
    font-size: 48px;
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.015em;
    color: var(--app-color-ink);
}

.feat-lead {
    margin: 0 0 4px;
    font-size: 16px;
    line-height: 26px;
    text-align: right;
    color: var(--app-color-muted);
}

/* 卡片网格：3 列，宽度比例与设计稿一致（390 / 390 / 414） */
.feat-grid {
    display: grid;
    grid-template-columns: 390fr 390fr 414fr;
    gap: 23px;
}

/* 卡片基础：文字 + 插图（默认为上下堆叠布局） */
.feat-card {
    position: relative;
    display: flex;
    flex-direction: column;
    border-radius: 24px;
    overflow: hidden;
    background: var(--feat-bg);
    isolation: isolate;
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.feat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(41, 7, 92, 0.1);
}

.feat-card-text {
    position: relative;
    z-index: 2;
    padding: 28px 24px 20px;
}

.feat-card-title {
    margin: 0;
    font-size: 26px;
    font-weight: 500;
    line-height: 1.5;
    letter-spacing: -0.01em;
    color: var(--app-color-ink);
}

.feat-card-desc {
    margin: 10px 0 0;
    font-size: 15px;
    line-height: 24px;
    color: var(--app-color-muted);
}

.feat-card-link {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    margin-top: 14px;
    font-size: 13px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--app-color-primary);
    text-decoration: none;
}

.feat-card-link i {
    font-size: 14px;
    transform: rotate(45deg);
    transition: transform 0.25s ease;
}

.feat-card-link:hover i {
    transform: translate(2px, -2px) rotate(45deg);
}

/* 插图裁切窗口：堆叠布局时只显示插图所在的下半部分 */
.feat-card-media {
    position: relative;
    margin-top: auto;
    aspect-ratio: var(--feat-crop);
    overflow: hidden;
}

/* 插图舞台：保持 SVG 原始比例，靠右下对齐（略微外移以隐藏 SVG 自带描边） */
.feat-card-stage {
    position: absolute;
    right: -2px;
    bottom: -2px;
    width: var(--feat-stage-width, 100%);
    aspect-ratio: var(--feat-ratio);
}

.feat-card-art {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
}

/* AI 大卡中倾斜放置的衬衫网站截图 */
.feat-card-shirt {
    position: absolute;
    left: 43.3%;
    top: 41.8%;
    width: 52.9%;
    height: auto;
    border-radius: 14px;
    transform: rotate(2.6deg);
    transform-origin: top left;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
    transition: transform 0.5s ease;
}

.feat-card-ai:hover .feat-card-shirt {
    transform: rotate(1.2deg) translateY(-6px);
}

/* 各卡片底色、SVG 比例与堆叠时的裁切比例 */
.feat-card-ai {
    grid-column: span 2;
    --feat-bg: var(--app-color-deep);
    --feat-ratio: 804 / 340;
    --feat-crop: 484 / 332;
    --feat-stage-width: 166.2%;
}

.feat-card-ai .feat-card-title {
    max-width: 300px;
    color: var(--app-color-white);
}

.feat-card-ai .feat-card-desc {
    max-width: 300px;
    color: rgba(255, 255, 255, 0.88);
}

.feat-card-words {
    --feat-bg: var(--app-color-lilac-100);
    --feat-ratio: 414 / 340;
    --feat-crop: 414 / 190;
}

.feat-card-words .feat-card-desc {
    max-width: 356px;
}

.feat-card-look {
    --feat-bg: var(--app-color-lilac-50);
    --feat-ratio: 391 / 377;
    --feat-crop: 391 / 220;
}

.feat-card-look .feat-card-desc,
.feat-card-screen .feat-card-desc {
    max-width: 315px;
}

.feat-card-screen {
    --feat-bg: var(--app-color-mist);
    --feat-ratio: 391 / 377;
    --feat-crop: 391 / 240;
}

.feat-card-online {
    --feat-bg: var(--app-color-cream);
    --feat-ratio: 414 / 377;
    --feat-crop: 414 / 150;
}

.feat-card-online .feat-card-title {
    max-width: 330px;
}

.feat-card-online .feat-card-desc {
    max-width: 356px;
}

/* 叠加布局：卡片比例与 SVG 一致，文字浮于插图之上 */
@media (min-width: 768px) {
    .feat-card-ai {
        display: block;
        aspect-ratio: var(--feat-ratio);
    }

    .feat-card-ai .feat-card-text {
        position: absolute;
        top: 0;
        left: 0;
        padding: 32px;
    }

    .feat-card-ai .feat-card-media {
        position: absolute;
        inset: 0;
        margin: 0;
        aspect-ratio: auto;
    }

    .feat-card-ai .feat-card-stage {
        inset: 0;
        width: 100%;
        height: 100%;
        aspect-ratio: auto;
    }
}

@media (min-width: 1200px) {
    .feat-card {
        display: block;
        aspect-ratio: var(--feat-ratio);
    }

    .feat-card-text {
        position: absolute;
        top: 0;
        left: 0;
        padding: 32px 30px;
    }

    .feat-card-ai .feat-card-text {
        padding: 32px;
    }

    .feat-card-media {
        position: absolute;
        inset: 0;
        margin: 0;
        aspect-ratio: auto;
    }

    .feat-card-stage {
        inset: 0;
        width: 100%;
        height: 100%;
        aspect-ratio: auto;
    }
}

/* 平板：两列，大卡占满一行 */
@media (max-width: 1199.98px) {
    .feat {
        padding: 96px 0;
    }

    .feat-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }

    .feat-title {
        font-size: 40px;
    }

    .feat-card-look {
        border: 1px solid var(--app-color-border);
    }
}

/* 平板竖屏：标题与说明上下排列 */
@media (max-width: 991.98px) {
    .feat-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        margin-bottom: 32px;
    }

    .feat-lead {
        margin: 0;
        text-align: left;
    }
}

/* 手机：单列 */
@media (max-width: 767.98px) {
    .feat {
        padding: 72px 0;
    }

    .feat-title {
        font-size: 32px;
    }

    .feat-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feat-card-ai {
        grid-column: auto;
    }

    .feat-card-title {
        font-size: 22px;
    }
}

/* =========
     features
   ========= */


/* =========
     how it works
   ========= */

.hiw {
    padding: 92px 0 94px;
    background: var(--app-color-lilac-50);
}

.hiw-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    margin-bottom: 50px;
}

.hiw-title {
    margin: 13px 0 0;
    font-size: 48px;
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.015em;
    color: var(--app-color-ink);
}

/* 引号与文字保持在同一行 */
.hiw-title-nowrap {
    white-space: nowrap;
}

.hiw-lead {
    margin: 12px 0 0;
    font-size: 16px;
    line-height: 26px;
    color: var(--app-color-muted);
}

.hiw-btn {
    flex-shrink: 0;
    margin-bottom: 0;
    padding: 0 24px;
}

.hiw-btn-video {
    font-size: 22px;
    color: var(--app-color-peach);
}

/* 步骤列表：Bootstrap 栅格，列间距 30px */
.hiw-steps {
    --bs-gutter-x: 30px;
    --bs-gutter-y: 40px;
    margin-bottom: 0;
    padding: 0 12px;
    list-style: none;
}

.hiw-step-number {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
    font-size: 16px;
    font-weight: 500;
    line-height: 1.5;
    color: var(--app-color-primary);
}

.hiw-step-line {
    flex: 1;
    height: 1px;
    background: var(--app-color-border);
}

.hiw-step-media {
    aspect-ratio: 385 / 190;
    border-radius: 16px;
    overflow: hidden;
    background: var(--app-color-lilac-100);
}

.hiw-step-img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.hiw-step:hover .hiw-step-img {
    transform: scale(1.04);
}

.hiw-step-title {
    margin: 20px 0 0;
    font-size: 22px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--app-color-ink);
}

.hiw-step-desc {
    margin: 18px 0 0;
    font-size: 15px;
    line-height: 24px;
    color: var(--app-color-muted);
}

@media (max-width: 1199.98px) {
    .hiw {
        padding: 88px 0;
    }

    .hiw-title {
        font-size: 40px;
    }

    .hiw-steps {
        --bs-gutter-x: 20px;
        padding: 0;
    }

    .hiw-step-title {
        font-size: 19px;
    }

    .hiw-step-desc {
        margin-top: 10px;
    }
}

@media (max-width: 991.98px) {
    .hiw-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
        margin-bottom: 36px;
    }
}

@media (max-width: 767.98px) {
    .hiw {
        padding: 72px 0;
    }

    .hiw-title {
        font-size: 32px;
    }

    .hiw-step-title {
        font-size: 20px;
    }
}

/* =========
     how it works
   ========= */


/* =========
     inspiration
   ========= */

.insp {
    padding: 111px 0 113px;
}

.insp-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    margin-bottom: 30px;
}

.insp-title {
    margin: 14px 0 0;
    font-size: 48px;
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.015em;
    color: var(--app-color-ink);
}

.insp-lead {
    margin: 0 0 6px;
    font-size: 16px;
    line-height: 26px;
    text-align: right;
    color: var(--app-color-muted);
}

/* 分类标签 */
.insp-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 35px;
}

.insp-filter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 42px;
    padding: 0 20px;
    border: 1px solid var(--app-color-border);
    border-radius: 999px;
    background: var(--app-color-white);
    font-family: var(--app-font-family);
    font-size: 15px;
    font-weight: 400;
    line-height: 1;
    color: var(--app-color-muted);
    cursor: pointer;
    transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}

.insp-filter:hover {
    border-color: var(--app-color-primary);
    color: var(--app-color-primary);
}

.insp-filter-active,
.insp-filter-active:hover {
    border-color: var(--app-color-primary);
    background: var(--app-color-primary);
    color: var(--app-color-white);
    box-shadow: 0 8px 18px rgba(118, 61, 232, 0.25);
}

.insp-grid {
    --bs-gutter-x: 25px;
    --bs-gutter-y: 25px;
}

/* 筛选后卡片重新出现的动画 */
.insp-col-enter {
    animation: insp-card-in 0.45s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

@keyframes insp-card-in {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.98);
    }

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

/* 案例卡片 */
.insp-card {
    display: block;
    height: 100%;
    border: 1px solid var(--app-color-border);
    border-radius: 16px;
    overflow: hidden;
    background: var(--app-color-white);
    color: inherit;
    text-decoration: none;
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.insp-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(41, 7, 92, 0.1);
}

.insp-card-media {
    aspect-ratio: 397 / 320;
    overflow: hidden;
}

.insp-card-img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.insp-card:hover .insp-card-img {
    transform: scale(1.03);
}

.insp-card-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 24px 22px 21px;
}

.insp-card-name {
    margin: 0;
    font-size: 18px;
    font-weight: 500;
    line-height: 1.3;
    color: var(--app-color-ink);
}

.insp-card-category {
    margin: 6px 0 0;
    font-size: 12px;
    line-height: 1.4;
    color: var(--app-color-muted);
}

.insp-card-arrow {
    flex-shrink: 0;
    font-size: 24px;
    line-height: 1;
    color: var(--app-color-primary);
    transform: rotate(45deg);
    transition: transform 0.3s ease;
}

.insp-card:hover .insp-card-arrow {
    transform: translate(3px, -3px) rotate(45deg);
}

.insp-note {
    margin: 36px 0 0;
    font-size: 12px;
    line-height: 1.5;
    text-align: center;
    color: var(--app-color-muted);
}

@media (max-width: 1199.98px) {
    .insp {
        padding: 96px 0;
    }

    .insp-title {
        font-size: 40px;
    }

    .insp-grid {
        --bs-gutter-x: 20px;
        --bs-gutter-y: 20px;
    }
}

@media (max-width: 991.98px) {
    .insp-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        margin-bottom: 28px;
    }

    .insp-lead {
        margin: 0;
        text-align: left;
    }
}

@media (max-width: 767.98px) {
    .insp {
        padding: 72px 0;
    }

    .insp-title {
        font-size: 32px;
    }

    .insp-filters {
        flex-wrap: nowrap;
        overflow-x: auto;
        margin-bottom: 24px;
        padding-bottom: 4px;
        scrollbar-width: none;
    }

    .insp-filters::-webkit-scrollbar {
        display: none;
    }

    .insp-filter {
        flex-shrink: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    .insp-col-enter {
        animation: none;
    }
}

/* =========
     inspiration
   ========= */


/* =========
     meet bina
   ========= */

.bina {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #B48BEA 0%, #8B55D8 45%, #5B1FA6 100%);
    color: var(--app-color-white);
}

.bina-media {
    background-color: #9D6BE0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.bina-media-asset {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.bina-inner {
    position: relative;
    z-index: 1;
}

.bina-content {
    max-width: 600px;
}

.bina-eyebrow {
    margin: 0;
    font-size: 13px;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--app-color-white);
}

.bina-title {
    margin: 26px 0 0;
    font-size: 56px;
    font-weight: 600;
    line-height: 1.12;
    letter-spacing: -0.015em;
    color: var(--app-color-white);
}

/* "Meet" 与手写体 Bi-na! 组合 */
.bina-title-meet {
    position: relative;
    display: inline-block;
}

.bina-title-script {
    position: absolute;
    left: calc(100% + 0.27em);
    bottom: -0.36em;
    width: 4.62em;
    max-width: none;
    height: auto;
    pointer-events: none;
}

.bina-desc {
    margin: 22px 0 0;
    font-size: 18px;
    font-weight: 300;
    line-height: 27px;
    color: rgba(255, 255, 255, 0.92);
}

/* 可输入的建站提示框 */
.bina-prompt {
    position: relative;
    width: 345px;
    max-width: 100%;
    margin-top: 24px;
}

.bina-prompt-input {
    width: 100%;
    height: 54px;
    padding: 0 64px 0 20px;
    border: 1.5px solid transparent;
    border-radius: 999px;
    background:
        linear-gradient(var(--app-color-white), var(--app-color-white)) padding-box,
        linear-gradient(90deg, #763DE8 0%, #D9C2FF 100%) border-box;
    font-family: var(--app-font-family);
    font-size: 16px;
    font-weight: 500;
    color: var(--app-color-ink);
    box-shadow: 0 10px 30px rgba(41, 7, 92, 0.2);
    outline: none;
    transition: box-shadow 0.25s ease;
}

.bina-prompt-input::placeholder {
    color: var(--app-color-muted);
    opacity: 1;
}

.bina-prompt-input:focus {
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.35), 0 10px 30px rgba(41, 7, 92, 0.2);
}

.bina-prompt-submit {
    position: absolute;
    top: 50%;
    right: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
    transform: translateY(-50%);
    filter: drop-shadow(0 4px 10px rgba(118, 61, 232, 0.45));
    transition: transform 0.3s ease;
}

.bina-prompt-submit img {
    display: block;
    width: 32px;
    height: 32px;
}

.bina-prompt-submit:hover {
    transform: translateY(-50%) rotate(18deg) scale(1.1);
}

/* 输入框为空时点击提交的提示抖动 */
.bina-prompt-shake {
    animation: bina-shake 0.4s ease;
}

@keyframes bina-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    75% { transform: translateX(6px); }
}

.bina-btn {
    margin-top: 26px;
    height: 52px;
    background: var(--app-color-white);
    color: var(--app-color-ink);
    box-shadow: 0 10px 24px rgba(41, 7, 92, 0.2);
}

.bina-btn:hover,
.bina-btn:focus-visible {
    color: var(--app-color-primary);
    box-shadow: 0 14px 30px rgba(41, 7, 92, 0.28);
}

/* 桌面端：动态画面铺满，文字位于右半区 */
@media (min-width: 1200px) {
    .bina {
        min-height: 726px;
    }

    .bina-media {
        position: absolute;
        inset: 0;
    }

    .bina-inner {
        display: flex;
        align-items: center;
        min-height: 726px;
    }

    .bina-content {
        margin-left: 48.4%;
    }
}

/* 平板与手机端：画面在上，文字在下 */
@media (max-width: 1199.98px) {
    .bina {
        display: flex;
        flex-direction: column;
    }

    .bina-media {
        position: relative;
        aspect-ratio: 16 / 9;
    }

    .bina-inner {
        padding-top: 48px;
        padding-bottom: 72px;
    }

    .bina-content {
        max-width: 640px;
    }

    .bina-title {
        font-size: 48px;
    }
}

@media (max-width: 767.98px) {
    .bina-media {
        aspect-ratio: 4 / 3;
    }

    .bina-media-asset {
        object-position: 22% center;
    }

    .bina-inner {
        padding-top: 40px;
        padding-bottom: 64px;
    }

    .bina-title {
        margin-top: 20px;
        font-size: 40px;
    }

    .bina-desc {
        font-size: 16px;
        line-height: 25px;
    }

    .bina-prompt {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .bina-prompt-shake {
        animation: none;
    }
}

/* =========
     meet bina
   ========= */


/* =========
     pricing
   ========= */

.price {
    padding: 112px 0 117px;
}

.price-head {
    margin-bottom: 46px;
    text-align: center;
}

.price-title {
    margin: 13px 0 0;
    font-size: 48px;
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.015em;
    color: var(--app-color-ink);
}

.price-lead {
    margin: 12px 0 0;
    font-size: 17px;
    line-height: 26px;
    color: var(--app-color-muted);
}

.price-grid {
    --bs-gutter-x: 21px;
    --bs-gutter-y: 21px;
}

/* 价格卡片 */
.price-card {
    position: relative;
    height: 100%;
    padding: 48px 24px 27px;
    border: 1px solid var(--app-color-border);
    border-radius: 24px;
    background: var(--app-color-white);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.price-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(41, 7, 92, 0.08);
}

/* 推荐方案：紫色描边 + 浅紫底 + 顶部渐变标签 */
.price-card-featured {
    padding: 47px 23px 26px;
    border: 2px solid var(--app-color-primary);
    background: var(--app-color-lilac-50);
    box-shadow: 0 24px 48px rgba(118, 61, 232, 0.16);
    overflow: hidden;
}

.price-card-featured:hover {
    box-shadow: 0 28px 56px rgba(118, 61, 232, 0.22);
}

.price-badge {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 30px;
    margin: 0;
    background: linear-gradient(90deg, #763DE8 0%, #A776E6 55%, #FFB7A5 100%);
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--app-color-white);
}

.price-name {
    margin: 0;
    font-size: 24px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--app-color-ink);
}

.price-tagline {
    margin: 8px 0 0;
    font-size: 15px;
    line-height: 1.5;
    color: var(--app-color-muted);
}

.price-amount {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin: 26px 0 0;
}

.price-value {
    font-size: 44px;
    font-weight: 600;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--app-color-ink);
}

.price-period {
    font-size: 14px;
    color: var(--app-color-muted);
}

.price-note {
    margin: 12px 0 0;
    font-size: 11px;
    line-height: 1.4;
    color: var(--app-color-muted);
}

.price-btn {
    width: 100%;
    margin-top: 24px;
}

/* 功能列表 */
.price-features {
    margin: 27px 0 0;
    padding: 0;
    list-style: none;
}

.price-feature {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 14.5px;
    line-height: 21px;
    color: var(--app-color-ink);
}

.price-feature + .price-feature {
    margin-top: 16px;
}

.price-feature-check {
    flex-shrink: 0;
    font-size: 17px;
    line-height: 21px;
    color: var(--app-color-primary);
}

/* ⓘ 提示图标：悬停 / 聚焦 / 点击时显示 "Coming Soon" */
.price-info {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    height: 21px;
    margin-left: 6px;
    padding: 0;
    border: 0;
    background: transparent;
    font-size: 18px;
    line-height: 1;
    color: var(--app-color-primary);
    cursor: pointer;
}

.price-info::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    z-index: 5;
    padding: 6px 10px;
    border-radius: 8px;
    background: var(--app-color-ink);
    font-family: var(--app-font-family);
    font-size: 12px;
    font-weight: 500;
    line-height: 1.2;
    white-space: nowrap;
    color: var(--app-color-white);
    opacity: 0;
    pointer-events: none;
    transform: translate(-50%, 4px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.price-info::before {
    content: "";
    position: absolute;
    bottom: calc(100% + 4px);
    left: 50%;
    z-index: 5;
    border: 6px solid transparent;
    border-bottom: 0;
    border-top-color: var(--app-color-ink);
    opacity: 0;
    transform: translate(-50%, 4px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.price-info:hover::after,
.price-info:hover::before,
.price-info:focus-visible::after,
.price-info:focus-visible::before,
.price-info-show::after,
.price-info-show::before {
    opacity: 1;
    transform: translate(-50%, 0);
}

@media (max-width: 1199.98px) {
    .price {
        padding: 96px 0;
    }

    .price-title {
        font-size: 40px;
    }

    .price-grid {
        --bs-gutter-x: 20px;
        --bs-gutter-y: 20px;
    }
}

@media (max-width: 767.98px) {
    .price {
        padding: 72px 0;
    }

    .price-head {
        margin-bottom: 32px;
    }

    .price-title {
        font-size: 32px;
    }

    .price-lead {
        font-size: 16px;
    }
}

/* =========
     pricing
   ========= */


/* =========
     faq
   ========= */

.faq {
    padding: 96px 0 130px;
    background: var(--app-color-lilac-50);
}

.faq-intro {
    margin-top: -5px;
    padding-right: 40px;
}

.faq-title {
    margin: 13px 0 0;
    font-size: 48px;
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.015em;
    color: var(--app-color-ink);
}

.faq-lead {
    max-width: 400px;
    margin: 12px 0 0;
    font-size: 16px;
    line-height: 26px;
    color: var(--app-color-muted);
}

.faq-link {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    margin-top: 26px;
    font-size: 16px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--app-color-primary);
    text-decoration: none;
}

.faq-link i {
    font-size: 15px;
    transform: rotate(45deg);
    transition: transform 0.25s ease;
}

.faq-link:hover i {
    transform: translate(2px, -2px) rotate(45deg);
}

/* 问答条目 */
.faq-item {
    border-top: 1px solid var(--app-color-border);
}

.faq-question-heading {
    margin: 0;
    font-size: inherit;
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: 100%;
    padding: 26px 0;
    border: 0;
    background: transparent;
    font-family: var(--app-font-family);
    font-size: 20px;
    font-weight: 500;
    line-height: 1.4;
    text-align: left;
    color: var(--app-color-ink);
    cursor: pointer;
    transition: padding 0.4s ease, color 0.25s ease;
}

.faq-question:hover {
    color: var(--app-color-primary);
}

.faq-item-open .faq-question {
    padding-bottom: 13px;
}

/* 加号 / 减号图标：展开时竖线旋转收起 */
.faq-icon {
    position: relative;
    flex-shrink: 0;
    width: 13px;
    height: 13px;
    color: var(--app-color-primary);
}

.faq-icon::before,
.faq-icon::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    width: 13px;
    height: 1.5px;
    border-radius: 2px;
    background: currentColor;
    transform: translateY(-50%);
    transition: transform 0.4s ease;
}

.faq-icon::after {
    transform: translateY(-50%) rotate(90deg);
}

.faq-item-open .faq-icon::before {
    transform: translateY(-50%) rotate(180deg);
}

.faq-item-open .faq-icon::after {
    transform: translateY(-50%) rotate(180deg);
}

/* 答案区域：高度从 0 平滑展开 */
.faq-answer {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.4s ease;
}

.faq-item-open .faq-answer {
    grid-template-rows: 1fr;
}

.faq-answer-inner {
    min-height: 0;
    overflow: hidden;
}

.faq-answer-text {
    margin: 0;
    padding-bottom: 25px;
    font-size: 15px;
    line-height: 24px;
    color: var(--app-color-muted);
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

.faq-item-open .faq-answer-text {
    opacity: 1;
    transform: none;
    transition-delay: 0.08s;
}

.faq-answer-email {
    text-decoration: underline;
    text-underline-offset: 2px;
}

@media (max-width: 1199.98px) {
    .faq {
        padding: 88px 0 96px;
    }

    .faq-title {
        font-size: 40px;
    }
}

@media (max-width: 991.98px) {
    .faq-intro {
        padding-right: 0;
        margin-bottom: 36px;
    }
}

@media (max-width: 767.98px) {
    .faq {
        padding: 72px 0;
    }

    .faq-title {
        font-size: 32px;
    }

    .faq-question {
        padding: 22px 0;
        font-size: 17px;
    }

    .faq-item-open .faq-question {
        padding-bottom: 10px;
    }

    .faq-answer-text {
        padding-bottom: 22px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .faq-question,
    .faq-icon::before,
    .faq-icon::after,
    .faq-answer,
    .faq-answer-text {
        transition: none;
    }
}

/* =========
     faq
   ========= */


/* =========
     cta
   ========= */

.cta {
    padding: 116px 0 0;
}

/* 深色渐变卡片 + 外围紫桃色光晕 */
.cta-card {
    position: relative;
    padding: 96px 32px 99px;
    border-radius: 32px;
    text-align: center;
    color: var(--app-color-white);
    background:
        repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.018) 0 1px, transparent 1px 28px),
        radial-gradient(ellipse 60% 70% at 62% 45%, rgba(118, 61, 232, 0.22) 0%, transparent 70%),
        linear-gradient(100deg, #03004A 0%, #10044F 40%, #24085A 75%, #1C0546 100%);
    box-shadow:
        -36px 10px 80px -20px rgba(118, 61, 232, 0.45),
        0 -24px 80px -30px rgba(255, 183, 165, 0.65),
        0 40px 80px -30px rgba(255, 183, 165, 0.45),
        36px 10px 80px -24px rgba(118, 61, 232, 0.3);
}

.cta-title {
    margin: 18px 0 0;
    font-size: 56px;
    font-weight: 600;
    line-height: 1.16;
    letter-spacing: -0.015em;
    color: var(--app-color-white);
}

.cta-desc {
    max-width: 580px;
    margin: 20px auto 0;
    font-size: 17px;
    line-height: 26px;
    color: rgba(255, 255, 255, 0.9);
}

.cta-btn {
    margin-top: 21px;
    background: var(--app-color-white);
    color: var(--app-color-ink);
    box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.06), 0 0 30px rgba(255, 255, 255, 0.35);
}

.cta-btn:hover,
.cta-btn:focus-visible {
    color: var(--app-color-primary);
    box-shadow: 0 0 0 8px rgba(255, 255, 255, 0.08), 0 0 40px rgba(255, 255, 255, 0.45);
}

.cta-note {
    margin: 23px 0 0;
    font-size: 11px;
    line-height: 1.4;
    color: rgba(255, 255, 255, 0.75);
}

@media (max-width: 1199.98px) {
    .cta {
        padding-top: 96px;
    }

    .cta-card {
        padding: 80px 32px;
    }

    .cta-title {
        font-size: 46px;
    }
}

@media (max-width: 767.98px) {
    .cta {
        padding-top: 72px;
    }

    .cta-card {
        padding: 56px 22px;
        border-radius: 24px;
    }

    .cta-title {
        font-size: 34px;
    }

    .cta-desc {
        font-size: 16px;
    }
}

/* =========
     cta
   ========= */


/* =========
     footer
   ========= */

.ftr {
    padding: 135px 0 0;
}

/* 品牌区 + 两组链接，列宽与设计稿一致 */
.ftr-main {
    display: grid;
    grid-template-columns: 1fr 270px 160px;
    align-items: start;
}

.ftr-logo img {
    display: block;
    width: 135px;
    height: auto;
}

.ftr-tagline {
    margin: 17px 0 0;
    font-size: 15px;
    line-height: 24px;
    color: var(--app-color-muted);
}

.ftr-col-title {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--app-color-ink);
}

.ftr-links {
    margin: 14px 0 0;
    padding: 0;
    list-style: none;
}

.ftr-links li + li {
    margin-top: 12px;
}

.ftr-link {
    font-size: 14px;
    line-height: 21px;
    color: var(--app-color-muted);
    text-decoration: none;
    transition: color 0.25s ease;
}

.ftr-link:hover {
    color: var(--app-color-primary);
}

.ftr-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 47px;
    padding: 26px 0 54px;
    border-top: 1px solid var(--app-color-border);
}

.ftr-copy,
.ftr-credit {
    margin: 0;
    font-size: 12px;
    line-height: 1.5;
    color: var(--app-color-muted);
}

@media (max-width: 1199.98px) {
    .ftr {
        padding-top: 96px;
    }

    .ftr-main {
        grid-template-columns: 1fr 200px 160px;
    }
}

@media (max-width: 767.98px) {
    .ftr {
        padding-top: 72px;
    }

    .ftr-main {
        grid-template-columns: 1fr 1fr;
        row-gap: 36px;
    }

    .ftr-brand {
        grid-column: 1 / -1;
    }

    .ftr-bottom {
        flex-direction: column;
        align-items: flex-start;
        margin-top: 40px;
        padding: 22px 0 36px;
    }
}

/* =========
     footer
   ========= */