/* ============================================================================
   how-to-transfer-google-photos-from-one-account-to-another-iw — ot2 体系
   设计源：Figma psihOgERfdZ1H3muZ9NHkQ frame 2748:15720 "img-page-transfer-gphotos"（1920）
   令牌：online-tools 族 conventions.md（品牌蓝 #0055FF / 深蓝 #021A60 / 浅灰 #F9FAFC /
   浅蓝 #EEF2FF / 次级 #5D5D5D / 边框 #E5E7EB；区块 padding 120px 40px + 内容 max-width 1280）
   版块根类（契约 sections.json）：ot2-hero / ot2-why / ot2-smart / ot2-before / ot2-how /
   ot2-files / ot2-manual / ot2-compare / ot2-explore / ot2-security / ot1-support（cloud-support，
   2026-09-21 整块复制自 how-to-transfer-files-from-google-drive-to-dropbox-iw 的 ot1-support）/
   ot2-reviews / ot2-faqs / ot2-cta
   交互：双 tab 切内容面板（hover/点击，2026-09 步骤图板 2748:17288 补齐 SEQ6/SEQ8 双内容态）、步骤卡激活
   联动换图、评论克隆循环轮播（ads 09 模式）、FAQ 单开互斥、IO reveal、步骤截图点击放大灯箱
   需求更新轮（docx 20260904）：hero 工具试用区改为真实工具 iframe（.ot2-hero__frame，同族
   migrate-google-to-onedrive 惯例，移除原静态 mock 卡样式）、Pro Tip 弱化文本行（.ot2-step__tip）
   断点：≤991 两列 / ≤767 单列（侧距 20、纵 64）
   ========================================================================== */

/* ---------- 基础令牌与容器 ---------- */
.ot2-sec {
    padding: 120px 40px;
}

.ot2-wrap {
    max-width: 1280px;
    margin: 0 auto;
}

.ot2-wrap--1200 {
    max-width: 1200px;
}

.ot2-sec-head {
    text-align: center;
}

.ot2-h2 {
    margin: 0;
    font-size: 36px;
    line-height: 1.295;
    font-weight: 700;
    color: #000;
}

.ot2-lead {
    margin: 24px 0 0;
    font-size: 18px;
    line-height: 1.295;
    color: #000;
}

.ot2-lead a,
.ot2-link {
    color: #0055FF;
    text-decoration: none;
}

.ot2-lead a:hover,
.ot2-link:hover {
    color: #0046CC;
    text-decoration: underline;
}

/* reveal（交互规范卡02：IO threshold .2 仅首次，translateY 20px→0） */
html.js [data-reveal],
html.js [data-reveal-stagger]>* {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity .5s ease-out, transform .5s ease-out;
}

html.js [data-reveal].is-revealed,
html.js [data-reveal-stagger].is-revealed>* {
    opacity: 1;
    transform: translateY(0);
}

html.js [data-reveal-stagger].is-revealed>*:nth-child(2) {
    transition-delay: .08s;
}

html.js [data-reveal-stagger].is-revealed>*:nth-child(3) {
    transition-delay: .16s;
}

html.js [data-reveal-stagger].is-revealed>*:nth-child(4) {
    transition-delay: .24s;
}

@media (prefers-reduced-motion: reduce) {

    html.js [data-reveal],
    html.js [data-reveal-stagger]>* {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* 通用主按钮（三态：hover #0046CC / active 下压 / focus-visible 描边） */
.ot2-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #0055FF;
    color: #fff;
    border: 0;
    border-radius: 8px;
    font: 700 18px/1.295 "PT Sans", sans-serif;
    text-decoration: none;
    cursor: pointer;
    transition: background-color .2s ease-out, transform .15s ease-out;
}

.ot2-btn:hover {
    background: #0046CC;
}

.ot2-btn:active {
    transform: translateY(1px);
}

.ot2-btn:focus-visible {
    outline: 2px solid #0055FF;
    outline-offset: 2px;
}

/* ---------- SEQ2 ot2-hero ---------- */
.ot2-hero {
    position: relative;
    overflow: hidden;
    background: #021A60 url("/resource/images/how-to-transfer-google-photos-from-one-account-to-another-iw/banner-bg.png") no-repeat top center;
    background-size: 1920px 994px;
    padding: 80px 40px 0;
    text-align: center;
}

.ot2-hero__inner {
    position: relative;
    z-index: 1;
}

.ot2-hero__title {
    margin: 0 auto;
    max-width: 1280px;
    font-size: 56px;
    line-height: 1.295;
    font-weight: 700;
    color: #fff;
}

.ot2-hero__desc {
    margin: 16px 0 0;
    font-size: 18px;
    line-height: 1.295;
    color: #fff;
}

/* 工具试用区（docx T02 开发说明：嵌入真实工具 iframe；设计帧 2748:15722 内即 Iframe 节点；
   尺寸沿同族 migrate-google-to-onedrive .ot4-hero-frame 1040x458 惯例） */
.ot2-hero__frame {
    display: block;
    max-width: 100%;
    width: 1040px;
    height: 458px;
    margin: 40px auto 0;
    border: 0;
    background: transparent;
}

.ot2-hero__app {
    margin: 24px 0 0;
    font-size: 14px;
    line-height: 1.286;
    color: rgba(255, 255, 255, .82);
}

.ot2-hero__app a {
    color: #589BFF;
    text-decoration: none;
}

.ot2-hero__app a:hover {
    text-decoration: underline;
}

.ot2-hero__media {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
    height: 32px;
    margin-top: 40px;
    padding-bottom: 0;
    opacity: 0.5;
}

.ot2-hero__media img,
.ot2-hero__media svg {
    display: block;
}

.ot2-hero__foot {
    height: 80px;
}

/* ---------- SEQ3 ot2-why ---------- */
.ot2-why {
    background: #F9FAFC;
}

.ot2-why__list {
    margin-top: 80px;
}

.ot2-why__card {
    display: flex;
    align-items: stretch;
    margin-bottom: 80px;
    background: #fff;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 9px 35px rgba(20, 46, 102, .05);
}

.ot2-why__card:last-child {
    margin-bottom: 0;
}

.ot2-why__fig {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 600px;
    height: 400px;
    background: linear-gradient(180deg, #FCFBFD 0%, #F6F7FB 100%);
}

.ot2-why__fig img {
    display: block;
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
}

.ot2-why__body {
    flex: 1;
    display: flex;
    align-items: center;
    padding: 40px 48px 40px 48px;
}

.ot2-why__txt {
    max-width: 584px;
}

.ot2-why__txt h3 {
    margin: 0;
    font-size: 32px;
    line-height: 1.295;
    font-weight: 700;
    color: #000;
}

.ot2-why__txt p {
    margin: 24px 0 0;
    font-size: 16px;
    line-height: 1.295;
    color: #5D5D5D;
}
.ot2-why a{
    color: #0055FF;
}
.ot2-why a:hover,
.ot2-why a:focus {
    text-decoration: underline;
}
@media (min-width: 1024px) {
    .ot2-why__card {
        position: sticky;
        top: 15%;
        overflow: hidden;
        will-change: transform;
        transform-style: preserve-3d;
    }

}

/* ---------- SEQ4 ot2-smart ---------- */
.ot2-smart {
    background: #fff;
}

.ot2-smart a {
    color: #0055FF;
}

.ot2-smart a:focus,
.ot2-smart a:hover {
    text-decoration: underline;
}

.ot2-grid4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 80px;
}

.ot2-feature {
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, .05);
    text-align: center;
    padding: 32px 16px 32px;
}

.ot2-feature__ic {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 80px;
}

.ot2-feature__ic img {
    display: block;
}

.ot2-feature__ic--round {
    height: 100px;
}

.ot2-feature h3 {
    margin: 24px 0 0;
    font-size: 20px;
    line-height: 1.295;
    font-weight: 700;
    color: #000;
}

.ot2-smart .ot2-feature h3 {
    white-space: nowrap;
}

.ot2-feature p {
    margin: 24px 0 0;
    font-size: 14px;
    line-height: 1.43;
    color: #5D5D5D;
}

/* ---------- SEQ5 ot2-before ---------- */
.ot2-before {
    background: #F9FAFC;
}

.ot2-before__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 80px;
}

.ot2-before__card {
    display: flex;
    align-items: center;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 9px 35px rgba(20, 46, 102, .05);
    overflow: hidden;
}

.ot2-before__fig {
    flex: 0 0 240px;
    height: 230px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ot2-before__body {
    flex: 1;
    padding: 24px 24px 24px 0;
}

.ot2-before__body h3 {
    margin: 0;
    font-size: 24px;
    line-height: 1.295;
    font-weight: 700;
    color: #000;
}

.ot2-before__body p {
    margin: 15px 0 0;
    font-size: 16px;
    line-height: 1.295;
    color: #5D5D5D;
}

.ot2-before__body a {
    display: inline;
}

.ot2-before__body a:hover,
.ot2-before__body a:focus {
    color: #0055FF;
    text-decoration: underline;
}

.ot2-note {
    margin-top: 40px;
    padding: 16px 24px;
    background: #EEF2FF;
    border-radius: 16px;
}

.ot2-note__hd {
    display: flex;
    align-items: center;
    gap: 4px;
}

.ot2-note__hd img {
    display: block;
    width: 24px;
    height: 24px;
}

.ot2-note__hd b {
    margin-left: 4px;
    font-size: 16px;
    font-weight: 700;
    color: #0055FF;
}

.ot2-note ul {
    margin: 8px 0 0;
    padding-left: 20px;
    list-style: disc outside;
}

.ot2-note li {
    font-size: 16px;
    line-height: 1.295;
    color: #000;
    list-style: disc;
}

/* ---------- 步骤查看器共用（SEQ6 ot2-how / SEQ8 ot2-manual） ---------- */
/* 2026-09-18 高度关系修复：右截图卡恒略高于左步骤列——panel 纵向 padding 16→32，
   steps-shot 负 margin ±16。拉伸态（左列文字长撑高）：卡 inset 16、左列 inset 32、错位
   16=圆角半径，消除与 ot3 同型的"平齐圆角缺口"；常态卡 inset/位置不变，左列自然高>
   卡高-32 时改由左列驱动、板高 +13~23px（已测实收口径，见 ot3 stepbox 同款处理） */
.ot2-steps-panel {
    display: flex;
    background: #EEF2FF;
    border-radius: 18px;
    padding: 32px 16px;
    box-shadow: 0 18px 32px rgba(34, 88, 246, .08);
}

/* 面板/步骤图切换显隐：hidden 属性须显式压过本文件的 display:flex/block（2026-09 步骤图板 2748:17288 双内容态） */
.ot2-steps-panel[hidden] {
    display: none;
}

.ot2-steps-shot img[hidden] {
    display: none;
}

.ot2-steps-list {
    flex: 0 0 448px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ot2-step {
    position: relative;
    background: #fff;
    text-align: left;
    border: 0;
    padding: 24px 24px 24px 34px;
    cursor: pointer;
    display: block;
    width: 100%;
    font-family: inherit;
    border-radius: 8px 0 0 8px;
    overflow: hidden;
}

.ot2-step::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 8px;
    background: transparent;
}

.ot2-step h3,
.ot2-step strong {
    display: block;
    margin: 0;
    font-size: 16px;
    line-height: 1.295;
    font-weight: 700;
    color: #000;
}

.ot2-step p {
    margin: 8px 0 0;
    font-size: 16px;
    line-height: 1.295;
    color: #000;
}

/* Pro Tip（docx T06 逐字文案；视觉形态设计稿未定义——弱化小字，待设计确认） */
.ot2-step__tip {
    margin: 8px 0 0;
    font-size: 13px;
    line-height: 1.295;
    color: #5D5D5D;
}

.ot2-step.is-active::before {
    background: #2258F6;
}

.ot2-step.is-active h3,
.ot2-step.is-active strong {
    color: #0055FF;
}

.ot2-step:focus-visible {
    outline: 2px solid #0055FF;
    outline-offset: 2px;
}

.ot2-steps-shot {
    flex: 1;
    margin-left: 0;
    background: #fff;
    border-radius: 16px;
    padding: 16px;
    box-shadow: 0 12px 24px rgba(0, 0, 0, .05);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: -16px;
    margin-bottom: -16px;
    /* 2026-09-18：恒高于左步骤列，见 .ot2-steps-panel 注 */
}

.ot2-steps-shot img {
    display: block;
    max-width: 100%;
    height: auto;
    cursor: zoom-in;
}

/* ---------- SEQ6 ot2-how ---------- */
.ot2-how {
    background: #fff;
}

.ot2-tabs-row {
    position: relative;
    margin-top: 60px;
    display: flex;
    justify-content: center;
}

.ot2-tabs {
    display: flex;
    padding: 5px;
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, .05);
}

.ot2-tab {
    border: 0;
    background: transparent;
    cursor: pointer;
    font-family: inherit;
    font-size: 16px;
    color: #000;
    border-radius: 4px;
    padding: 9px 0;
    width: 195px;
}

.ot2-tab:first-child {
    width: 217px;
}

.ot2-tab.is-active {
    background: #0055FF;
    color: #fff;
    font-weight: 700;
}

.ot2-tab:focus-visible {
    outline: 2px solid #0055FF;
    outline-offset: 2px;
}

.ot2-badge40 {
    position: absolute;
    left: 50%;
    margin-left: 172px;
    top: -23px;
    width: 92px;
    height: 42px;
    background-image: url('/resource/images/how-to-transfer-google-photos-from-one-account-to-another-iw/badge-40plus-bg.svg');
    background-position: center;
    background-repeat: no-repeat;
    font-weight: bold;
}

.ot2-badge40__count,
.ot2-badge40__label {
    position: absolute;
    display: block;
    white-space: nowrap;
    font-style: normal;
}

.ot2-badge40__count {
    left: 23.78px;
    top: 17.66px;
    transform: translate(-50%, -50%);
    color: #05F;
    font-family: DIN-BlackItalic, "DIN Black Italic", Arial, sans-serif;
    font-size: 22.43px;
    line-height: normal;
}

.ot2-badge40__label {
    left: 43px;
    top: 17.6px;
    transform: translateY(-50%);
    color: #000;
    font-family: DIN-BoldItalic, "DIN Bold Italic", Arial, sans-serif;
    font-size: 13.877px;
    line-height: normal;
}

.ot2-how .ot2-steps-panel {
    margin-top: 40px;
    min-height: 552px;
}

.ot2-how .ot2-steps-list {
    gap: 16px;
}

.ot2-panel-note {
    margin-top: 40px;
    padding: 16px 25px;
    background: #F9FAFC;
    border-radius: 8px;
    font-size: 16px;
    line-height: 1.295;
    color: #000;
}

.ot2-how__cta {
    margin-top: 40px;
    text-align: center;
}

.ot2-how__cta .ot2-btn {
    width: 422px;
    height: 64px;
    font-size: 20px;
}

/* ---------- SEQ7 ot2-files ---------- */
.ot2-files {
    background: #F9FAFC;
}

.ot2-files__flow {
    margin-top: 80px;
    background: #fff;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 9px 35px rgba(20, 46, 102, .05);
}

.ot2-flow {
    display: flex;
    justify-content: center;
}

.ot2-flow__node {
    width: 180px;
    height: 171px;
    margin-top: 72px;
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, .06);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.ot2-flow__logo {
    width: 64px;
    height: 64px;
    margin-top: 24px;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 4px 14px rgba(0, 0, 0, .08);
    display: flex;
    align-items: center;
    justify-content: center;
}

.ot2-flow__logo img {
    width: 60px;
    height: 60px;
    display: block;
}

.ot2-flow__node h3 {
    margin: 16px 0 0;
    font-size: 16px;
    line-height: 1.295;
    font-weight: 700;
    color: #000;
}

.ot2-flow__node p {
    margin: 4px 0 0;
    font-size: 14px;
    color: #5D5D5D;
}

.ot2-flow__seg {
    position: relative;
    width: 269px;
    height: 314px;
}

.ot2-flow__pill {
    position: absolute;
    left: 50%;
    top: 109px;
    transform: translateX(-50%);
    display: inline-flex;
    align-items: center;
    height: 30px;
    padding: 0 12px;
    background: #E8F9F3;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
    color: #10B981;
    white-space: nowrap;
}

.ot2-flow__arrow {
    position: absolute;
    left: 0;
    top: 171px;
    width: 269px;
    height: 35px;
}

.ot2-flow__chip {
    position: absolute;
    top: 158px;
    width: 51px;
    height: 51px;
    border-radius: 6px;
}

.ot2-flow__seg .ot2-flow__chip:nth-of-type(1) {
    left: 38px;
}

.ot2-flow__seg .ot2-flow__chip:nth-of-type(2) {
    left: 89px;
}

.ot2-flow__seg .ot2-flow__chip:nth-of-type(3) {
    left: 141px;
}

.ot2-flow__hub {
    position: relative;
    width: 220px;
    height: 314px;
}

.ot2-flow__ring {
    position: absolute;
    left: 50%;
    top: 34px;
    transform: translateX(-50%);
    width: 247px;
    height: 247px;
}

.ot2-flow__ring img {
    display: block;
    width: 100%;
    height: 100%;
}

.ot2-flow__mcloud {
    position: absolute;
    left: 50%;
    top: 98px;
    transform: translateX(-50%);
    width: 119px;
    height: 120px;
}

.ot2-flow__task {
    position: absolute;
    left: 50%;
    top: 245px;
    transform: translateX(-50%);
    display: inline-flex;
    align-items: center;
    height: 29px;
    padding: 0 16px;
    background: #1149ED;
    border-radius: 20px;
    white-space: nowrap;
    font-size: 16px;
    font-weight: 700;
    color: #fff;
}

.ot2-files .ot2-grid4 {
    margin-top: 24px;
}

.ot2-files .ot2-feature {
    padding-bottom: 32px;
}

.ot2-badges {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin-top: 40px;
}

.ot2-badge-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.ot2-badge-item i {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: #D1FAE5;
    border-radius: 6.5px;
}

.ot2-badge-item span {
    font-size: 14px;
    font-weight: 700;
    color: #000;
}

.ot2-badge-item--blue span {
    color: #0055FF;
}

/* ---------- SEQ8 ot2-manual ---------- */
.ot2-manual {
    background: #021A60;
}

.ot2-manual__panel {
    margin-top: 80px;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 9px 35px rgba(0, 0, 0, .18);
}

.ot2-manual__tabs {
    display: flex;
    height: 60px;
    background: #0055FF;
}

.ot2-manual__tab {
    flex: 1;
    border: 0;
    cursor: pointer;
    background: #0055FF;
    font-family: inherit;
    font-size: 16px;
    font-weight: 700;
    color: #fff;
}

.ot2-manual__tab:first-child {
    border-radius: 16px 16px 0 0;
}

.ot2-manual__tab:last-child {
    border-radius: 0 16px 0 0;
}

/* 2026-09-18 用户反馈：激活 tab 上缘两角都要圆角（同 ot3-manual-tab 口径；后置覆盖 last-child） */
.ot2-manual__tab.is-active {
    background: #fff;
    color: #0055FF;
    border-radius: 16px 16px 0 0;
}

.ot2-manual__tab:focus-visible {
    outline: 2px solid #0055FF;
    outline-offset: -4px;
}

.ot2-manual__bd {
    padding: 24px;
}

.ot2-manual__pane>h3 {
    margin: 0;
    text-align: center;
    font-size: 24px;
    line-height: 1.295;
    font-weight: 700;
    color: #000;
}

.ot2-manual .ot2-steps-panel {
    margin-top: 24px;
}

.ot2-manual .ot2-steps-list {
    flex-basis: 440px;
    gap: 16px;
}

.ot2-manual .ot2-steps-shot {
    border-radius: 16px;
}

/* ---------- SEQ9 ot2-compare ---------- */
/* 设计 2748:16142：卡片 1280 宽（1px #E5E7EB + 16 圆角 + 阴影）；末列 MultCloud 高亮框
   360×648（#EEF2FF + 2px #1D70EC + 16 圆角），与外框上/下/右缘重合、盖住卡片边框 */
.ot2-compare {
    background: #fff;
}

.ot2-compare__stage {
    position: relative;
    margin-top: 80px;
}

.ot2-ctable-wrap {
    --ot2-ctable-dim: 200px;
    position: relative;
    isolation: isolate;
    width: 1280px;
    max-width: 100%;
    margin: 0 auto;
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, .05);
}

.ot2-ctable {
    width: 100%;
    table-layout: fixed;
    border-collapse: separate;
    border-spacing: 0;
    background: transparent;
}

.ot2-ctable col.ot2-ctable__col-dim {
    width: var(--ot2-ctable-dim);
}

.ot2-ctable th,
.ot2-ctable td {
    height: 72px;
    padding: 8px 20px;
    border-right: 1px solid #E5E7EB;
    border-bottom: 1px solid #E5E7EB;
    font-size: 14px;
    line-height: 1.295;
    font-weight: 400;
    color: #000;
    text-align: center;
    vertical-align: middle;
    overflow-wrap: break-word;
}

.ot2-ctable tr:last-child td:last-child {
    border-bottom: 0;
}

.ot2-ctable thead th {
    background: #F9FAFC;
    border-bottom: 1px solid #E5E7EB;
    font-weight: 700;
}

.ot2-ctable tbody tr:nth-child(even) th,
.ot2-ctable tbody tr:nth-child(even) td:not(.ot2-ctable__mc) {
    background: #F9FAFC;
}

.ot2-ctable .ot2-ctable__dim {
    text-align: left;
    font-weight: 700;
}

.ot2-ctable thead .ot2-ctable__dim {
    text-align: center;
}

.ot2-ctable .ot2-ctable__lg {
    font-size: 16px;
    line-height: 1.5;
}

/* 高亮列单元格透明（底色由 .ot2-ctable__hl 从表格下层透出），不画右边框 */
.ot2-ctable tr>*:last-child {
    border-right: 0;
}

.ot2-ctable .ot2-ctable__mc {
    background: transparent;
}

.ot2-ctable__mc img {
    display: inline-block;
    vertical-align: middle;
}

/* 卡片圆角：左上/左下由首末行单元格兜底（右上/右下由高亮框圆角提供） */
.ot2-ctable thead th:first-child {
    border-top-left-radius: 15px;
}

.ot2-ctable tbody tr:last-child th:first-child {
    border-bottom-left-radius: 15px;
}

.ot2-ctable__hl {
    position: absolute;
    top: -1px;
    right: -1px;
    bottom: -1px;
    width: calc((100% - var(--ot2-ctable-dim)) / 3 + 1px);
    background: #EEF2FF;
    border: 2px solid #1D70EC;
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(29, 112, 236, .15);
    z-index: -1;
    pointer-events: none;
}

/* ---------- SEQ10 ot2-explore ---------- */
.ot2-explore {
    background: #F9FAFC;
}

.ot2-explore__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 80px;
}

.ot2-explore__card {
    display: flex;
    flex-direction: column;
    height: 370px;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid #E5E7EB;
    box-shadow: 0 9px 35px rgba(20, 46, 102, .05);
}

.ot2-explore__fig img {
    display: block;
    width: 100%;
    height: auto;
}

.ot2-explore__bd {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 24px 24px 32px;
    text-align: center;
}

.ot2-explore__bd h3 {
    margin: 0;
    font-size: 20px;
    line-height: 1.295;
    font-weight: 700;
    color: #000;
}

.ot2-explore__bd p {
    margin: 16px 0 0;
    font-size: 14px;
    line-height: 1.295;
    color: #5D5D5D;
}

.ot2-btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: auto auto 0;
    padding: 0 24px;
    height: 44px;
    background: #fff;
    border: 1px solid #B9D2FF;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 700;
    color: #1D70EC;
    text-decoration: none;
    transition: background-color .2s ease-out, border-color .2s ease-out;
}

.ot2-btn-ghost:hover {
    background: #F4F8FF;
    border-color: #1D70EC;
}

.ot2-btn-ghost:focus-visible {
    outline: 2px solid #1D70EC;
    outline-offset: 2px;
}

.ot2-explore__card:nth-child(1) .ot2-btn-ghost {
    min-width: 176px;
}

.ot2-explore__card:nth-child(2) .ot2-btn-ghost {
    min-width: 194px;
}

.ot2-explore__card:nth-child(3) .ot2-btn-ghost {
    min-width: 199px;
}

/* ---------- SEQ11 ot2-security ---------- */
.ot2-security {
    background: #fff;
}

.ot2-security .ot2-grid4 {
    margin-top: 80px;
}

.ot2-security .ot2-feature {
    padding: 40px 24px 40px;
}

.ot2-security .ot2-feature p {
    font-size: 16px;
    line-height: 1.295;
    margin-top: 16px;
}

.ot2-security .ot2-feature p strong {
    color: #5D5D5D;
}

/* ---------- SEQ12 cloud-support（板块样式复制自 how-to-transfer-files-from-google-drive-to-dropbox-iw.html 的 ot1-support，保留源类名便于比对同步） ---------- */
.ot1-support {
    background: #F9FAFC;
    padding: 120px 40px;
}

.ot1-support,
.ot1-support * {
    box-sizing: border-box;
}

.ot1-support h2 {
    margin: 0;
}

.ot1-support__inner {
    max-width: 1280px;
    margin: 0 auto;
}

.ot1-sec-head {
    max-width: 1280px;
    margin: 0 auto 80px;
}

.ot1-sec-head h2 {
    font-size: 36px;
    line-height: 47px;
    font-weight: 700;
    color: #000;
    text-align: center;
}

.ot1-sec-head p {
    margin: 24px 0 0;
    font-size: 18px;
    line-height: 1.3;
    color: #000;
    text-align: center;
    overflow-wrap: break-word;
}

.ot1-support__grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 14px 17px;
}

.ot1-support__item {
    background: #FFF;
    border-radius: 14px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 25px 12px 20px;
    text-align: center;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

@media (hover: hover) {
    .ot1-support__item:hover {
        transform: translateY(-4px);
        box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
    }
}

.ot1-support__item img {
    width: 60px;
    height: 60px;
}

.ot1-support__item span {
    font-size: 16px;
    line-height: 21px;
    color: #000;
    overflow-wrap: break-word;
}

.ot1-support__more {
    margin-top: 46px;
    text-align: center;
}

.ot1-support__more-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 46px;
    padding: 12px 90px;
    background: #FFF;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    font-family: inherit;
    font-size: 16px;
    line-height: 21px;
    color: #000;
    cursor: pointer;
    transition: box-shadow 0.15s ease;
}

@media (hover: hover) {
    .ot1-support__more-btn:hover {
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    }
}

.ot1-support__more-btn img {
    width: 20px;
    height: 20px;
}

main .ot1-support a:focus-visible {
    outline: 2px solid #0055FF;
    outline-offset: 2px;
}

/* ---------- SEQ13 ot2-reviews ---------- */
.ot2-reviews {
    background: #fff;
    padding: 109px 40px;
}

.ot2-reviews__stage {
    position: relative;
    margin-top: 80px;
    overflow: hidden;
}

.ot2-reviews__track {
    display: flex;
    gap: 24px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.ot2-review {
    flex: 0 0 570px;
    width: 570px;
    box-sizing: border-box;
    height: 405px;
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 9px 35px rgba(20, 46, 102, .05);
    display: flex;
    flex-direction: column;
}

.ot2-review__hd {
    display: flex;
    gap: 8px;
}

.ot2-review__ava {
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 500;
    color: #fff;
}

.ot2-review__meta {
    font-size: 16px;
    line-height: 1.2;
    color: #000;
}

.ot2-review__meta-sub {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
    font-size: 14px;
    color: #666;
}

.ot2-review__meta-sub svg {
    display: block;
}

.ot2-review__stars {
    display: flex;
    align-items: center;
    margin-top: 16px;
}

.ot2-review__stars img {
    display: block;
    width: 24px;
    height: 24px;
    margin-right: 2px;
}

.ot2-review__date {
    margin-left: auto;
    font-size: 14px;
    color: #666;
}

.ot2-review__title {
    margin: 16px 0 0;
    font-size: 20px;
    line-height: 1.1;
    font-weight: 700;
    color: #000;
}

.ot2-review__text {
    margin: 16px 0 0;
    font-size: 16px;
    line-height: 1.375;
    color: #000;
}

.ot2-review__tags {
    display: flex;
    gap: 8px;
    margin-top: auto;
    padding-top: 16px;
}

.ot2-review__tags span {
    display: inline-flex;
    align-items: center;
    height: 24px;
    padding: 0 6px;
    background: #E7E7E6;
    border-radius: 4px;
    font-size: 14px;
    color: #000;
}

.ot2-review__foot {
    display: flex;
    align-items: center;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid #EEF0F2;
}

.ot2-review__act {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: #666;
    background: none;
    border: 0;
    padding: 0;
    cursor: pointer;
    font-family: inherit;
    margin-right: 24px;
}

.ot2-review__flag {
    margin-left: auto;
}

.ot2-reviews__shade {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 600px;
    pointer-events: none;
}

.ot2-reviews__shade--l {
    left: 0;
    background: linear-gradient(90deg, #fff 25%, rgba(255, 255, 255, 0) 78%);
}

.ot2-reviews__shade--r {
    right: 0;
    background: linear-gradient(270deg, #fff 25%, rgba(255, 255, 255, 0) 78%);
}

.ot2-reviews__navbtn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 64px;
    height: 64px;
    border-radius: 50%;
    border: 1px solid #E5E7EB;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #FFF;
    color: #111;
    box-shadow: 0 4px 20px rgba(0, 0, 0, .10);
    transition: transform .15s ease-out, background-color .15s ease-out;
}

@media (hover: hover) {
    .ot2-reviews__navbtn:hover {
        /* transform: translateY(-50%) scale(1.1); */
        background: #0055FF;
        border-color: #0055FF;
        color: #FFF;
    }

    .ot2-reviews__navbtn.ot2-reviews__navbtn--next:hover {
        /* transform: translateY(-50%) scale(1.1) rotate(180deg); */
    }

    .ot2-reviews__navbtn:hover img {
        filter: brightness(0) invert(1) !important;
    }
}

.ot2-reviews__navbtn:active {
    transform: translateY(-50%) scale(.95);
}

.ot2-reviews__navbtn:focus-visible {
    outline: 2px solid #0055FF;
    outline-offset: 2px;
}

.ot2-reviews__navbtn--prev {
    left: calc(50% - 640px);
}

.ot2-reviews__navbtn--next {
    right: calc(50% - 640px);
    transform: rotate(180deg);
}

.ot2-reviews__navbtn svg {
    display: block;
    width: 24px;
    height: 24px;
}

/* ---------- SEQ14 ot2-faqs ---------- */
.ot2-faqs {
    background: #F9FAFC;
}

.ot2-faqs__list {
    margin-top: 80px;
}

.ot2-faq-item {
    border-bottom: 1px solid #E5E7EB;
}

.ot2-faq-item a {
    color: #0055FF;
}

.ot2-faq-item a:hover {
    text-decoration: underline;
}

.ot2-faq-item:first-child {
    border-top: 1px solid #E5E7EB;
}

.ot2-faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 40px 0;
    background: none;
    border: 0;
    cursor: pointer;
    font-family: inherit;
    text-align: left;
}

.ot2-faq-q h3,
.ot2-faq-q span.ot2-faq-q__t {
    margin: 0;
    font-size: 20px;
    line-height: 1.295;
    font-weight: 700;
    color: #000;
    transition: color .2s ease-out;
}

.ot2-faq-item.is-open .ot2-faq-q h3,
.ot2-faq-item.is-open .ot2-faq-q .ot2-faq-q__t {
    color: #0055FF;
}

.ot2-faq-q .ot2-faq-q__ic {
    flex: 0 0 32px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ot2-faq-q .ot2-faq-q__ic svg,
.ot2-faq-q .ot2-faq-q__ic img {
    display: block;
    width: 21px;
    height: 21px;
}

.ot2-faq-item:not(.is-open) .ot2-faq-q__ic img {
    transform: rotate(180deg);
}

.ot2-faq-a {
    padding-bottom: 40px;
}

.ot2-faq-a[hidden] {
    display: none;
}

.ot2-faq-a p {
    margin: 0;
    font-size: 16px;
    line-height: 1.3;
    color: #000;
}

.ot2-faq-q:hover {
    background: rgba(0, 0, 0, .02);
}

/* ---------- SEQ15 ot2-cta ---------- */
.ot2-cta {
    background: #F9FAFC;
    padding-top: 0;
}

.ot2-cta__card {
    position: relative;
    max-width: 1280px;
    margin: 0 auto;
    min-height: 500px;
    background: #021A60;
    border-radius: 24px;
    overflow: hidden;
    padding: 111px 72px 72px;
}

.ot2-cta__logo {
    display: block;
    width: 152px;
    height: 26px;
}

.ot2-cta__card h2 {
    margin: 16px 0 0;
    max-width: 596px;
    font-size: 36px;
    line-height: 1.295;
    font-weight: 700;
    color: #fff;
}

.ot2-cta__desc {
    margin: 16px 0 0;
    max-width: 596px;
    font-size: 18px;
    line-height: 1.295;
    color: #fff;
}

.ot2-cta__card .ot2-btn {
    margin-top: 16px;
    width: 294px;
    height: 64px;
}

.ot2-cta__art {
    position: absolute;
    right: 72px;
    top: 60px;
    width: 540px;
    height: 380px;
    pointer-events: none;
}

/* ---------- 步骤截图放大灯箱（docx T06 开发说明：图片可放大） ---------- */
.ot2-lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    background: rgba(2, 10, 40, .78);
    cursor: zoom-out;
}

.ot2-lightbox img {
    display: block;
    max-width: min(1280px, 92vw);
    max-height: 88vh;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 24px 64px rgba(0, 0, 0, .35);
}

.ot2-lightbox[hidden] {
    display: none;
}

/* ---------- 响应式（≤991 两列 / ≤767 单列） ---------- */
@media (max-width: 1359px) {
    .ot2-reviews__navbtn--prev {
        left: 24px;
    }

    .ot2-reviews__navbtn--next {
        right: 24px;
    }
}

@media (max-width: 1199px) {
    .ot2-hero__title {
        font-size: 44px;
    }

    .ot2-why__fig {
        flex-basis: 420px;
    }

    .ot1-support__grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (max-width: 991px) {
    .ot2-sec {
        padding: 96px 24px;
    }

    .ot2-grid4 {
        grid-template-columns: 1fr 1fr;
    }

    .ot2-explore__grid {
        grid-template-columns: 1fr 1fr;
    }

    .ot2-why__card {
        flex-direction: column;
    }

    .ot2-why__fig {
        flex-basis: auto;
        width: 100%;
        height: 320px;
    }

    .ot2-why__body {
        padding: 0 32px 40px;
    }

    .ot2-steps-panel {
        flex-direction: column;
        padding: 16px;
    }

    .ot2-steps-list {
        flex-basis: auto;
    }

    .ot2-steps-shot {
        margin-top: 16px;
        margin-bottom: 0;
    }

    /* 单列堆叠复位，防重叠 */
    .ot2-how .ot2-steps-panel,
    .ot2-manual .ot2-steps-panel {
        min-height: 0;
    }

    .ot2-flow {
        transform: scale(.8);
        transform-origin: center top;
    }

    .ot2-cta__art {
        position: static;
        display: block;
        margin: 32px auto 0;
        max-width: 100%;
        height: auto;
    }
}

@media (max-width: 767px) {
    .ot2-sec {
        padding: 64px 20px;
    }

    .ot2-hero {
        padding: 56px 20px 0;
    }

    .ot2-hero__title {
        font-size: 30px;
    }

    .ot2-hero__desc {
        font-size: 16px;
    }

    .ot2-hero__frame {
        width: 100%;
        height: auto;
        aspect-ratio: 1040 / 458;
    }

    .ot2-hero__media {
        flex-wrap: wrap;
        gap: 24px;
        height: auto;
        padding: 0 0 40px;
    }

    .ot2-h2 {
        font-size: 26px;
    }

    .ot2-lead {
        font-size: 16px;
    }

    .ot2-grid4 {
        grid-template-columns: 1fr;
    }

    .ot2-before__grid {
        grid-template-columns: 1fr;
    }

    .ot2-before__card {
        flex-direction: column;
        align-items: flex-start;
    }

    .ot2-before__fig {
        flex-basis: auto;
        width: 100%;
        height: 200px;
    }

    .ot2-before__body {
        padding: 0 20px 24px;
    }

    .ot2-ctable-wrap {
        --ot2-ctable-dim: 120px;
    }

    .ot2-ctable th,
    .ot2-ctable td {
        padding: 8px 10px;
        font-size: 13px;
    }

    .ot2-ctable .ot2-ctable__lg {
        font-size: 14px;
    }

    .ot2-tabs-row {
        margin-top: 40px;
    }

    .ot2-tabs {
        width: 100%;
    }

    .ot2-tab,
    .ot2-tab:first-child {
        flex: 1;
        width: auto;
        padding: 9px 4px;
        font-size: 14px;
    }

    .ot2-badge40 {
        display: none;
    }

    .ot2-how__cta .ot2-btn {
        width: 100%;
        max-width: 422px;
    }

    .ot2-panel-note {
        padding: 12px 16px;
    }

    .ot2-steps-shot {
        padding: 12px;
    }

    .ot2-flow {
        transform: scale(.55);
    }

    .ot2-files__flow {
        padding: 12px;
        overflow: hidden;
    }

    .ot2-badges {
        flex-wrap: wrap;
        gap: 16px;
    }

    .ot2-explore__grid {
        grid-template-columns: 1fr;
    }

    .ot1-support {
        padding: 64px 20px;
    }

    .ot1-support__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .ot1-support__more-btn {
        padding: 12px 40px;
    }

    .ot1-sec-head {
        margin-bottom: 48px;
    }

    .ot1-sec-head h2 {
        font-size: 28px;
        line-height: 37px;
    }

    .ot1-sec-head p {
        font-size: 16px;
    }

    .ot2-review {
        flex-basis: calc(100vw - 40px);
        width: calc(100vw - 40px);
    }

    .ot2-reviews__shade {
        display: none;
    }

    .ot2-cta__card {
        padding: 56px 24px;
    }

    .ot2-cta__card h2,
    .ot2-cta__desc {
        max-width: 100%;
    }

    .ot2-cta__card .ot2-btn {
        width: 100%;
        max-width: 294px;
    }

    .ot2-faq-q h3,
    .ot2-faq-q .ot2-faq-q__t {
        font-size: 17px;
    }
}