/* ========================================================================
   D2C-20261016-001 — Transfer Files from Box to Dropbox (online-tools)
   设计源：Figma psihOgERfdZ1H3muZ9NHkQ frame 3183:24696（MC-EN-transfer-files-from-box-to-dropbox-iw）
   令牌（帧内节点实测）：容器 1280（区块 padding 120px 40px，≥1920 侧距 320）；
   H1 56/68 白居中；H2 36/47 #000/#FFF 居中；卡题 32/700、20/700；正文 18/16；次级 #353637 / #979797；
   品牌蓝 #0055FF；功能蓝 #1D70EC（explore 描边按钮）；深蓝 #021A60；浅灰 #F8FAFC/#F9FAFC；
   浅蓝卡 #F1F6FF；边框 #E6EBF3（卡）/ #E5E7EB（FAQ）；橙 #EF6F1C（Challenge）；绿星 #00B67A
   断点：≤1439 侧距 40（本页基准）→ ≤1199 grid 2 列 → ≤991 收缩 → ≤767 单列（padding 64px 20px）+ 表格堆叠
   结构/类名体系克隆自族参考页 how-to-transfer-files-from-google-drive-to-dropbox-iw（ot1- 命名空间）
   ======================================================================== */

/* ---------- 基础 ---------- */
.ot1-hero,
.ot1-compare,
.ot1-ways,
.ot1-checklist,
.ot1-boxfiles,
.ot1-benefits,
.ot1-manual,
.ot1-betterfit,
.ot1-privacy,
.ot1-enterprise,
.ot1-syncstep,
.ot1-decision,
.ot1-issues,
.ot1-explore,
.ot1-reviews,
.ot1-faqs,
.ot1-cta {
    box-sizing: border-box;
}

.ot1-hero *,
.ot1-compare *,
.ot1-ways *,
.ot1-checklist *,
.ot1-boxfiles *,
.ot1-benefits *,
.ot1-manual *,
.ot1-betterfit *,
.ot1-privacy *,
.ot1-enterprise *,
.ot1-syncstep *,
.ot1-decision *,
.ot1-issues *,
.ot1-explore *,
.ot1-reviews *,
.ot1-faqs *,
.ot1-cta * {
    box-sizing: border-box;
}

.ot1-hero h1,
.ot1-hero h2,
.ot1-hero h3,
.ot1-compare h2,
.ot1-ways h2,
.ot1-ways h3,
.ot1-checklist h2,
.ot1-boxfiles h2,
.ot1-benefits h2,
.ot1-benefits h3,
.ot1-manual h2,
.ot1-manual h3,
.ot1-betterfit h2,
.ot1-betterfit h3,
.ot1-privacy h2,
.ot1-privacy h3,
.ot1-enterprise h2,
.ot1-enterprise h3,
.ot1-syncstep h2,
.ot1-decision h2,
.ot1-issues h2,
.ot1-issues h3,
.ot1-explore h2,
.ot1-explore h3,
.ot1-reviews h2,
.ot1-reviews h3,
.ot1-faqs h2,
.ot1-faqs h3,
.ot1-cta h2 {
    margin: 0;
}

.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: 28px;
    color: #353637;
    text-align: center;
    overflow-wrap: break-word;
}

.ot1-sec-head--light h2 {
    color: #FFF;
}

.ot1-sec-head--light p {
    color: #FFF;
}

/* ---------- S02 hero ---------- */
.ot1-hero {
    position: relative;
    padding: 80px 0;
    overflow: hidden;
    background: #021A60 url(/resource/images/migrate-google-to-onedrive/figma/banner-bg.jpg) no-repeat center / cover;
}

.ot1-hero__inner {
    position: relative;
    max-width: 1360px;
    margin: 0 auto;
    padding: 0 40px;
    text-align: center;
}

.ot1-hero__inner h1 {
    font-size: 56px;
    line-height: 68px;
    font-weight: 700;
    color: #FFF;
}

.ot1-hero__desc {
    margin: 16px 0 0;
    font-size: 18px;
    line-height: 28px;
    color: #FFF;
    font-weight: 400;
}

.ot1-hero__tool {
    margin-top: 40px;
}

.ot1-hero__tool iframe {
    display: block;
    margin: 0 auto;
    width: 1040px;
    max-width: 100%;
    height: 366px;
    border: 0;
    background: transparent;
    border-radius: 8px;
}

.ot1-hero__act {
    margin-top: 32px;
}

.ot1-hero__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 364px;
    min-height: 64px;
    padding: 0 40px;
    background: #0055FF;
    border-radius: 8px;
    color: #FFF;
    font-size: 18px;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
    transition: background-color 0.15s ease;
}

@media (hover: hover) {
    .ot1-hero__btn:hover {
        background: #0046CC;
    }
}

.ot1-hero__btn:active {
    opacity: 0.9;
}

.ot1-hero__signup {
    margin: 24px 0 0;
    font-size: 14px;
    line-height: 20px;
    color: #fff;
}

.ot1-hero__signup a {
    color: #589BFF;
    text-decoration: none;
}

@media (hover: hover) {
    .ot1-hero__signup a:hover {
        text-decoration: underline;
    }
}

.ot1-hero__third {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 24px 60px;
    margin-top: 46px;
    opacity: 0.5;
}

.ot1-hero__third img {
    display: block;
}

/* ---------- S03 compare（3 列 Box/Dropbox 对比卡） ---------- */
.ot1-compare {
    background: #FFF;
    padding: 120px 40px;
}

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

.ot1-compare__card {
    background: #FFF;
    border: 1px solid #E6EBF3;
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04), 0 18px 40px -12px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.ot1-compare__row {
    display: grid;
    grid-template-columns: 240px 520px 520px;
}

.ot1-compare__row--head .ot1-compare__dim,
.ot1-compare__row--head .ot1-compare__col {
    background: #F8FAFC;
    height: 72px;
    font-weight: 700;
}

.ot1-compare__row--head .ot1-compare__col {
    font-size: 16px;
    color: #000;
}

.ot1-compare__row:nth-child(odd):not(.ot1-compare__row--head) {
    background: #F8FAFC;
}

.ot1-compare__row:nth-child(even) {
    background: #FFF;
}

.ot1-compare__dim,
.ot1-compare__col {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 64px;
    padding: 12px 20px;
    font-size: 14px;
    line-height: 20px;
    color: #353637;
    text-align: center;
    border-bottom: 1px solid #E6EBF3;
    overflow-wrap: break-word;
}

.ot1-compare__dim {
    justify-content: flex-start;
    text-align: left;
    font-weight: 700;
    color: #000;
    border-right: 1px solid #E6EBF3;
}

.ot1-compare__dim {
    font-size: 14px;
    line-height: 20px;
    font-weight: 700;
    color: #000;
}

/* P3-1: 数据行标签 14/700（设计） */
.ot1-compare__row--head .ot1-compare__dim {
    font-size: 18px;
    line-height: 24px;
}

/* P3-1: 表头 18/700（设计） */
.ot1-compare__col {
    border-right: 1px solid #E6EBF3;
}

.ot1-compare__row .ot1-compare__col:last-child {
    border-right: 0;
}

.ot1-compare__card>.ot1-compare__row:last-child .ot1-compare__dim,
.ot1-compare__card>.ot1-compare__row:last-child .ot1-compare__col {
    border-bottom: 0;
}

.ot1-compare__row--head .ot1-compare__col {
    gap: 8px;
}

.ot1-compare__row--head img {
    display: block;
}

/* ---------- S04 ways（双 tab 切换） ---------- */
.ot1-ways {
    background: #F8FAFC;
    padding: 120px 40px;
}

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

.ot1-ways__tabs {
    position: relative;
    display: flex;
    width: 610px;
    max-width: 100%;
    margin: 0 auto 40px;
    padding: 4px;
    background: #FFF;
    border: 1px solid #E6EBF3;
    border-radius: 12px;
}

.ot1-ways__reco {
    position: absolute;
    top: -11px;
    right: 13px;
    width: 48px;
    height: 48px;
    pointer-events: none;
}

.ot1-ways__tab {
    flex: 1 1 0;
    min-height: 60px;
    padding: 9px 24px;
    border: 0;
    border-radius: 6px;
    background: #FFF;
    color: #000;
    font-family: inherit;
    font-size: 16px;
    line-height: 24px;
    font-weight: 400;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
}

@media (hover: hover) {
    .ot1-ways__tab:not(.is-active):hover {
        color: #0055FF;
    }
}

.ot1-ways__tab.is-active {
    background: #0055FF;
    color: #FFF;
    font-weight: 700;
}

.ot1-ways__panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 581px;
    gap: 40px;
    align-items: center;
    background: #FFF;
    border: 1px solid #E6EBF3;
    border-radius: 16px;
    box-shadow: 0 9px 35px rgba(20, 46, 102, 0.05);
    padding: 48px 40px;
}

.ot1-ways__panel[hidden] {
    display: none;
}

.ot1-ways__top {
    display: flex;
    align-items: flex-start;
    gap: 24px;
}

.ot1-ways__head {
    flex: 1 1 auto;
    min-width: 0;
}

.ot1-ways__head h3 {
    font-size: 32px;
    line-height: 42px;
    font-weight: 700;
    color: #000;
}

.ot1-ways__head p {
    margin: 16px 0 0;
    font-size: 14px;
    line-height: 20px;
    color: #353637;
}

.ot1-ways__quota {
    flex: 0 0 120px;
    height: 120px;
    border-radius: 12px;
    background: #F1F6FF;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-align: center;
}

.ot1-ways__quota strong {
    font-size: 36px;
    line-height: 48px;
    font-weight: 700;
    color: #0055FF;
}

.ot1-ways__quota span {
    font-size: 14px;
    line-height: 20px;
    color: #353637;
}

.ot1-ways__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
    max-width: 435px;
}

.ot1-ways__chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 4px;
    background: #F8FAFC;
    font-size: 14px;
    line-height: 20px;
    color: #353637;
}

.ot1-ways__chip img {
    flex: 0 0 16px;
    width: 16px;
    height: 16px;
}

.ot1-ways__steps {
    list-style: none;
    margin: 24px 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ot1-ways__steps li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    line-height: 20px;
    color: #353637;
}

.ot1-ways__steps li i {
    flex: 0 0 28px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #F1F6FF;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-style: normal;
    font-size: 14px;
    font-weight: 700;
    color: #0055FF;
}

.ot1-ways__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 54px;
    margin-top: 26px;
    padding: 14px 32px;
    border-radius: 8px;
    background: #0055FF;
    color: #FFF;
    font-size: 16px;
    line-height: 24px;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
    transition: background-color 0.15s ease;
}

@media (hover: hover) {
    .ot1-ways__btn:hover {
        background: #0046CC;
    }
}

.ot1-ways__btn:active {
    opacity: 0.9;
}

.ot1-ways__btn .ot1-arr {
    margin-left: 2px;
    width: 16px;
    height: 16px;
    background: url(/resource/images/transfer-files-from-box-to-dropbox-iw/ic-32-arrow-right-01.svg) no-repeat center/cover;
}

.ot1-ways__nocard {
    margin: 12px 0 0;
    font-size: 14px;
    line-height: 20px;
    color: #000;
}

.ot1-ways__shot {
    display: block;
    width: 581px;
    max-width: 100%;
    height: 360px;
    object-fit: contain;
}

.ot1-ways__note {
    margin: 40px 0 0;
    font-size: 18px;
    line-height: 28px;
    color: #000;
    text-align: center;
}

.ot1-ways__note a {
    color: #0055FF;
    text-decoration: none;
}

@media (hover: hover) {
    .ot1-ways__note a:hover {
        text-decoration: underline;
    }
}

/* ---------- S05 checklist（勾选清单 + 计数） ---------- */
.ot1-checklist {
    background: #FFF;
    padding: 120px 40px;
}

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

.ot1-checklist .ot1-sec-head {
    margin-bottom: 40px;
}

.ot1-checklist__progress {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 24px;
}

.ot1-checklist__bar {
    display: flex;
    gap: 2px;
}

.ot1-checklist__bar i {
    display: block;
    width: 20px;
    height: 11px;
    background: rgba(0, 85, 255, 0.2);
}

.ot1-checklist__bar i:first-child {
    border-radius: 12px 0 0 12px;
}

.ot1-checklist__bar i:last-child {
    border-radius: 0 12px 12px 0;
}

.ot1-checklist__bar i.is-on {
    background: #0055FF;
}

.ot1-checklist__count {
    margin: 0;
    font-size: 16px;
    line-height: 24px;
    font-weight: 700;
    color: #000;
}

.ot1-checklist__card {
    background: #FFF;
    border: 1px solid #E6EBF3;
    border-radius: 16px;
    box-shadow: 0 9px 35px rgba(20, 46, 102, 0.05);
    padding: 48px 40px;
}

.ot1-checklist__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px 24px;
}

.ot1-checklist__group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ot1-checklist__pill {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 14px;
    line-height: 20px;
    font-weight: 700;
    background: #F1F6FF;
    color: #0055FF;
}

.ot1-checklist__pill--inventory {
    background: #E5F9F2;
    color: #007F54;
}

.ot1-checklist__pill--compat {
    color: #753BEA;
}

.ot1-checklist__pill--scope {
    color: #006DAD;
}

.ot1-checklist__pill--cutover {
    color: #0055FF;
}

.ot1-ck__item {
    display: flex;
    align-items: center;
    gap: 24px;
    width: 100%;
    text-align: left;
    padding: 16px 20px;
    border: 1px solid #E9EDF4;
    border-radius: 12px;
    background: #F8FAFC;
    font-family: inherit;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

@media (hover: hover) {
    .ot1-ck__item:hover {
        border-color: #C7D2E5;
    }
}

.ot1-ck__item.is-checked {
    background: #FFF;
    border-color: #E6EBF3;
}

.ot1-ck__box {
    flex: 0 0 24px;
    width: 24px;
    height: 24px;
}

.ot1-ck__ic {
    flex: 0 0 32px;
    width: 32px;
    height: 32px;
}

.ot1-ck__txt {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.ot1-ck__txt strong {
    font-size: 18px;
    line-height: 24px;
    font-weight: 700;
    color: #000;
    overflow-wrap: break-word;
}

.ot1-ck__txt em {
    font-style: normal;
    font-size: 14px;
    line-height: 20px;
    color: #979797;
    overflow-wrap: break-word;
}

/* ---------- S06 boxfiles（Challenge / Solution 3 列） ---------- */
.ot1-boxfiles {
    background: #F8FAFC;
    padding: 120px 40px;
}

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

.ot1-boxfiles__card {
    background: #FFF;
    border: 1px solid #E6EBF3;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04), 0 18px 40px -12px rgba(0, 0, 0, 0.08);
}

.ot1-boxfiles__row {
    display: grid;
    grid-template-columns: 284px 450px 546px;
}
.ot1-boxfiles__row:first-child .ot1-boxfiles__name{
    border-right: 0;
}
.ot1-boxfiles__row--head {
    min-height: 52px;
}

.ot1-boxfiles__row--head .ot1-boxfiles__chal,
.ot1-boxfiles__row--head .ot1-boxfiles__sol {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    line-height: 24px;
    font-weight: 700;
    border-bottom: 1px solid #E6EBF3;
}

.ot1-boxfiles__row--head .ot1-boxfiles__chal {
    color: #EF6F1C;
}

.ot1-boxfiles__row--head .ot1-boxfiles__sol {
    background: #F1F6FF;
    color: #0055FF;
}

.ot1-boxfiles__row--head svg {
    flex: 0 0 18px;
}

.ot1-boxfiles__name {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    font-size: 20px;
    line-height: 28px;
    font-weight: 700;
    color: #000;
    border-bottom: 1px solid #E6EBF3;
    border-right: 1px solid #E6EBF3;
}

.ot1-boxfiles__ic {
    flex: 0 0 56px;
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: #F1F6FF;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.ot1-boxfiles__ic img {
    width: 56px;
    height: 56px;
}

.ot1-boxfiles__chal {
    display: flex;
    align-items: center;
    padding: 16px 24px;
    font-size: 16px;
    line-height: 24px;
    color: #353637;
    border-bottom: 1px solid #E6EBF3;
    border-right: 1px solid #E6EBF3;
    overflow-wrap: break-word;
}

.ot1-boxfiles__sol {
    display: flex;
    align-items: center;
    padding: 16px 24px;
    background: #F1F6FF;
    font-size: 16px;
    line-height: 24px;
    color: #0055FF;
    border-bottom: 1px solid #E6EBF3;
    overflow-wrap: break-word;
}

.ot1-boxfiles__card>.ot1-boxfiles__row:last-child .ot1-boxfiles__name,
.ot1-boxfiles__card>.ot1-boxfiles__row:last-child .ot1-boxfiles__chal,
.ot1-boxfiles__card>.ot1-boxfiles__row:last-child .ot1-boxfiles__sol {
    border-bottom: 0;
}

/* ---------- S07 benefits（Bento 网格） ---------- */
.ot1-benefits {
    background: #021A60;
    padding: 120px 40px;
}

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

.ot1-benefits__bento {
    display: grid;
    grid-template-columns: 440px minmax(0, 1fr);
    gap: 24px;
}

.ot1-benefits__lead {
    display: flex;
    flex-direction: column;
    background: #F1F6FF;
    border-radius: 16px;
    padding: 32px;
}

.ot1-benefits__lead h3 {
    font-size: 32px;
    line-height: 42px;
    font-weight: 700;
    color: #000;
}

.ot1-benefits__lead p {
    margin: 16px 0 0;
    font-size: 16px;
    line-height: 24px;
    color: #353637;
}

.ot1-benefits__art {
    margin-top: 24px;
    border-radius: 12px;
    overflow: hidden;
    background: #FFF;
}

.ot1-benefits__lead p {
    margin-bottom: auto;
}

.ot1-benefits__art img {
    display: block;
    width: 100%;
    height: auto;
}

.ot1-benefits__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.ot1-benefits__card {
    background: #FFF;
    border-radius: 16px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ot1-benefits__card img {
    display: block;
    width: 32px;
    height: 32px;
}

.ot1-benefits__card h3 {
    font-size: 20px;
    line-height: 28px;
    font-weight: 700;
    color: #000;
}

.ot1-benefits__card p {
    margin: 0;
    font-size: 16px;
    line-height: 24px;
       color: #353637;
}

/* ---------- S08 manual（3 方法纵排 + Tips 条） ---------- */
.ot1-manual {
    background: #FFF;
    padding: 120px 40px;
}

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

.ot1-manual__block+.ot1-manual__block {
    margin-top: 100px;
}

.ot1-manual__head {
    padding-bottom: 24px;
    border-bottom: 1px solid #E6EBF3;
}

.ot1-manual__head h3 {
    font-size: 32px;
    line-height: 42px;
    font-weight: 700;
    color: #000;
}

.ot1-manual__head p {
    margin: 16px 0 0;
    font-size: 16px;
    line-height: 24px;
    color: #353637;
}

.ot1-manual__steps {
    list-style: none;
    margin: 40px 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.ot1-manual__steps li {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 16px;
    line-height: 24px;
    color: #353637;
}

.ot1-manual__steps li strong {
    flex: 0 0 auto;
    font-size: 16px;
    line-height: 24px;
    font-weight: 700;
    color: #000;
}

.ot1-manual__steps code {
    display: inline-block;
    padding: 4px 12px;
    border: 1px solid #E6EBF3;
    border-radius: 6px;
    background: #F8F8F8;
    font-family: Consolas, "Courier New", monospace;
    font-size: 15px;
    line-height: 24px;
    color: #000;
}
.ot1-manual__steps code em{
    font-style: normal;
    color: #0055FF;
}
.ot1-manual__tip {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 40px 0 0;
    padding: 12px;
    border-radius: 2px;
    background: #F8FAFC;
    font-size: 16px;
    line-height: 24px;
    color: #353637;
}

.ot1-manual__tip svg {
    flex: 0 0 24px;
}

.ot1-manual__tip strong {
    color: #0055FF;
    font-weight: 700;
}

/* ---------- S09 betterfit（3x2 优势卡） ---------- */
.ot1-betterfit {
    background: #F8FAFC;
    padding: 120px 40px;
}

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

.ot1-betterfit__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.ot1-betterfit__card {
    background: #FFF;
    border: 1px solid #E6EBF3;
    border-radius: 16px;
    padding: 24px 32px 40px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    transition: all 0.3s ease;
}
.ot1-betterfit__card:hover{
    transform: translateY(-10px);
}

.ot1-betterfit__card img {
    width: 100px;
    height: 100px;
}

.ot1-betterfit__card h3 {
    font-size: 20px;
    line-height: 28px;
    font-weight: 700;
    color: #000;
}

.ot1-betterfit__card p {
    margin: 0;
    font-size: 16px;
    line-height: 24px;
    color: #979797;
}

/* ---------- S10 privacy（3 等宽 + 2 宽卡） ---------- */
.ot1-privacy {
    background: #021A60;
    padding: 120px 40px;
}

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

.ot1-privacy__row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.ot1-privacy__card {
    background: #FFF;
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    transition: all 0.3s ease;
}
.ot1-privacy__hcard{
       transition: all 0.3s ease;
}
.ot1-privacy__hcard:hover,
.ot1-privacy__card:hover{
    transform: translateY(-10px);
}
.ot1-privacy__card img {
    width: 100px;
    height: 100px;
}

.ot1-privacy__card h3 {
    font-size: 20px;
    line-height: 28px;
    font-weight: 700;
    color: #000;
}

.ot1-privacy__card p {
    margin: 0;
    font-size: 16px;
    line-height: 24px;
    color: #979797;
}

.ot1-privacy__wide {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.ot1-privacy__hcard {
    display: flex;
    align-items: center;
    gap: 24px;
    background: #FFF;
    border-radius: 16px;
    padding: 40px;
}

.ot1-privacy__hcard img {
    flex: 0 0 100px;
    width: 100px;
    height: 100px;
}

.ot1-privacy__htxt {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-width: 0;
}

.ot1-privacy__htxt h3 {
    font-size: 20px;
    line-height: 28px;
    font-weight: 700;
    color: #000;
}

.ot1-privacy__htxt p {
    margin: 0;
    font-size: 16px;
    line-height: 24px;
    color: #979797;
}

/* ---------- S11 enterprise（4 步图文左右交替） ---------- */
.ot1-enterprise {
    background: #F8FAFC;
    padding: 120px 40px;
}

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

.ot1-enterprise__steps {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.ot1-enterprise__step {
    display: grid;
    grid-template-columns: 644px minmax(0, 1fr);
    gap: 80px;
    align-items: center;
}

.ot1-enterprise__step--flip .ot1-enterprise__shot {
    order: 2;
}

.ot1-enterprise__shot {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.ot1-enterprise__shot img {
    display: block;
    width: 556px;
    max-width: 100%;
    height: auto;
}

.ot1-enterprise__txt {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.ot1-enterprise__txt h3 {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 30px;
    line-height: 42px;
    font-weight: 700;
    color: #000;
}

.ot1-enterprise__txt h3 i {
    flex: 0 0 40px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #0055FF;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-style: normal;
    font-size: 24px;
    font-weight: 700;
    color: #FFF;
}

.ot1-enterprise__txt p {
    margin: 0;
    font-size: 18px;
    line-height: 28px;
    color: #353637;
}

/* ---------- S12 syncstep（锚点胶囊 + 左步骤 + 右截图） ---------- */
.ot1-syncstep {
    background: #FFF;
    padding: 120px 40px 160px;
}

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

.ot1-syncstep__pills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
    margin: -40px 0 40px;
}

.ot1-syncstep__pills span {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    border-radius: 999px;
    background: #F1F6FF;
    font-size: 14px;
    line-height: 20px;
    color: #0055FF;
}

.ot1-syncstep__card {
    display: grid;
    grid-template-columns: 448px minmax(0, 1fr);
    gap: 0;
    background: #F1F6FF;
    border-radius: 18px;
    box-shadow: 0 20px 50px rgba(20, 46, 102, 0.06);
    padding: 16px;
    align-items: center;
}

.ot1-syncstep__left {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ot1-syncstep__item {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    text-align: left;
    padding: 20px 28px 20px 34px;
    border: 0;
    border-radius: 8px 0 0 8px;
    background: #FFF;
    font-family: inherit;
    cursor: pointer;
    box-shadow: 0 18px 32px rgba(20, 46, 102, 0.13);
}

.ot1-syncstep__item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 8px;
    border-radius: 8px 0 0 8px;
    background: #0055FF;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.ot1-syncstep__item.is-active::before {
    opacity: 1;
}

/* @media (hover: hover) {
    .ot1-syncstep__item:not(.is-active):hover .ot1-syncstep__ttl {
        color: #0055FF;
    }
} */

.ot1-syncstep__ttl {
    font-size: 16px;
    line-height: 24px;
    font-weight: 700;
    color: #000;
}
.ot1-syncstep__ttl strong{
    color: #0055FF;
}

/* .ot1-syncstep__item.is-active .ot1-syncstep__ttl {
    color: #0055FF;
} */

.ot1-syncstep__desc {
    font-size: 14px;
    line-height: 20px;
    color: #353637;
}

.ot1-syncstep__shot {
    background: #FFF;
    border-radius: 16px;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.05);
    padding: 16px;
    z-index: 2;
}

.ot1-syncstep__shot img {
    display: block;
    width: 768px;
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* ---------- S13 decision（分支图） ---------- */
.ot1-decision {
    position: relative;
    background: #F8FAFC;
    padding: 120px 40px;
    overflow: hidden;
}

.ot1-decision__bg {
    position: absolute;
    left: 0;
    top: 105px;
    width: 100%;
    height: 770px;
    pointer-events: none;
    background: url("/resource/images/transfer-files-from-box-to-dropbox-iw/summary-cloud-bg.webp") no-repeat center top / 1920px auto;
}

.ot1-decision__inner {
    position: relative;
    max-width: 1280px;
    margin: 0 auto;
}

.ot1-decision__top {
    display: flex;
    align-items: center;
    justify-content: center;
}

.ot1-decision__link {
    display: block;
    width: 1280px;
    max-width: 100%;
    height: auto;
}

.ot1-decision__route {
    position: relative;
    height: 114px;
}

.ot1-decision__fan {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    display: block;
    width: 100%;
    height: 114px;
}

.ot1-decision__route-ic {
    position: absolute;
    left: 50%;
    top: 8px;
    transform: translateX(-50%);
    display: block;
    width: 56px;
    height: 56px;
}

.ot1-decision__scen {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 16px;
}

.ot1-decision__scard {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 120px;
    padding: 16px;
    background: #FFF;
    border: 1px solid #E6EBF3;
    border-radius: 16px;
    font-size: 18px;
    line-height: 23px;
    color: #000;
}

.ot1-decision__conns {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 16px;
}

.ot1-decision__conns img {
    display: block;
    width: 200px;
    max-width: 100%;
    height: 40px;
    margin: 0 auto;
}

.ot1-decision__methods {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 64px;
}

.ot1-decision__mcard {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: #FFF;
    border: 1px solid #E6EBF3;
    border-radius: 16px;
    text-align: center;
}

.ot1-decision__mcard img {
    width: 100px;
    height: 100px;
}

.ot1-decision__mcard {
    min-height: 234px;
}

.ot1-decision__mcard span {
    font-size: 18px;
    line-height: 24px;
    font-weight: 700;
    color: #000;
    overflow-wrap: break-word;
}

.ot1-decision__mcard--mc {
    border-color: #0055FF;
}

.ot1-decision__mcard--mc span {
    color: #0055FF;
}

/* ---------- S14 issues（3x3 小卡） ---------- */
.ot1-issues {
    background: #FFF;
    padding: 120px 40px;
}

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

.ot1-issues__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    align-items: stretch;
}

.ot1-issues__card {
    display: grid;
    grid-template-columns: 56px minmax(0, 1fr);
    align-items: start;
    align-content: start;
    gap: 20px;
    padding: 24px;
    background: #FFF;
    border: 1px solid #E6EBF3;
    border-radius: 16px;
    box-shadow: 0 9px 35px rgba(20, 46, 102, 0.05);
}

.ot1-issues__card img {
    align-self: center;
    justify-self: start;
    width: 56px;
    height: 56px;
}

.ot1-issues__txt {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
}

.ot1-issues__txt h3 {
    font-size: 20px;
    line-height: 28px;
    font-weight: 700;
    color: #000;
}

.ot1-issues__txt p {
    margin: 0;
    font-size: 16px;
    line-height: 24px;
    color: #979797;
    overflow-wrap: break-word;
}

/* ---------- S15 explore（深蓝 3 卡） ---------- */
.ot1-explore {
    background: #021A60;
    padding: 120px 40px;
}

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

.ot1-explore__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.ot1-explore__card {
    background: #FFF;
    border: 1px solid #E6EBF3;
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    min-height: 370px;
    transition: all 0.3s ease;
}
.ot1-explore__card:hover{
    transform: translateY(-10px);
}
.ot1-explore__head {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 410 / 144;
    object-fit: cover;
}

.ot1-explore__body {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    padding: 0 24px 24px;
    text-align: center;
}

.ot1-explore__body h3 {
    margin-top: 24px;
    font-size: 20px;
    line-height: 28px;
    font-weight: 700;
    color: #000;
}

.ot1-explore__body p {
    margin: 16px 0 0;
    font-size: 14px;
    line-height: 20px;
    color: #979797;
}

/* P3-2: 设计 14/400 */
.ot1-explore__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    align-self: center;
    margin-top: auto;
    min-height: 44px;
    padding: 10px 24px;
    border: 1px solid #1D70EC;
    border-radius: 8px;
    color: #1D70EC;
    font-size: 16px;
    line-height: 21px;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.ot1-explore__btn {
    margin-top: 24px;
}

.ot1-explore__body p+.ot1-explore__btn {
    margin-top: auto;
}

@media (hover: hover) {
    .ot1-explore__btn:hover {
        background: #1D70EC;
        color: #FFF;
    }
}

.ot1-explore__btn:active {
    opacity: 0.85;
}

/* ---------- S17 reviews（轮播；结构/类名/行为复用族 001 组件 ot1-reviews，令牌按本页设计帧 3183:25906） ---------- */
.ot1-reviews {
    background: #F8FAFC;
    padding: 120px 0;
}
.ot1-reviews-inner{
    max-width: 1280px;
    margin: 0 auto;
}
.ot1-reviews h2 {
    font-size: 36px;
    line-height: 47px;
    font-weight: 700;
    color: #000;
    text-align: center;
    margin: 0 0 80px;
}

.ot1-reviews__carousel {
    position: relative;
}

.ot1-reviews__viewport {
    position: relative;
    overflow: hidden;
}

.ot1-reviews__track {
    display: flex;
    gap: 24px;
    will-change: transform;
}

.ot1-reviews__card {
    flex: 0 0 570px;
    background: #FFF;
    border: 1px solid #E6EBF3;
    border-radius: 16px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ot1-rc__head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-bottom: 16px;
    border-bottom: 1px solid #E6EBF3;
}

.ot1-rc__avatar {
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #FFF;
    font-size: 16px;
    font-weight: 700;
}

.ot1-rc__who {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.ot1-rc__name {
    font-size: 16px;
    line-height: 24px;
    color: #353637;
    overflow-wrap: break-word;
}

.ot1-rc__meta {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    line-height: 20px;
    color: #979797;
}

.ot1-rc__meta img {
    width: 15px;
    height: 15px;
    margin-left: 12px;
}

.ot1-rc__main {
    display: flex;
    /* flex-direction: column; */
    flex-wrap: wrap;
    gap: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid #E6EBF3;
    flex: 1;
}

.ot1-rc__stars {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.ot1-rc__stars-icons {
    display: inline-flex;
    gap: 2px;
}

.ot1-rc__stars-icons img {
    width: 24px;
    height: 24px;
}

.ot1-rc__date {
    font-size: 14px;
    line-height: 20px;
    color: #979797;
}

.ot1-rc__main h3 {
    font-size: 20px;
    line-height: 28px;
    font-weight: 700;
    color: #000;
}

.ot1-rc__main p {
    margin: 0;
    font-size: 16px;
    line-height: 24px;
    color: #353637;
    overflow-wrap: break-word;
}

.ot1-rc__chips {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.ot1-rc__chips span {
    display: inline-flex;
    align-items: center;
    padding: 2px 6px;
    background: #F8FAFC;
    border-radius: 4px;
    font-size: 14px;
    line-height: 20px;
    color: #353637;
}

.ot1-rc__foot {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-top: auto;
}

.ot1-rc__actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.ot1-rc__action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    line-height: 20px;
    color: #979797;
}

.ot1-rc__kebab {
    display: inline-flex;
}

.ot1-reviews__fade {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 120px;
    pointer-events: none;
    z-index: 1;
}

.ot1-reviews__fade--l {
    left: 0;
    background: linear-gradient(270deg, rgba(248, 250, 252, 0) 0%, #F8FAFC 100%);
}

.ot1-reviews__fade--r {
    right: 0;
    background: linear-gradient(90deg, rgba(248, 250, 252, 0) 0%, #F8FAFC 100%);
}

.ot1-reviews__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0 max(12px, calc(50% - 641px));
    pointer-events: none;
    z-index: 2;
}

.ot1-reviews__btn {
    pointer-events: auto;
    width: 64px;
    height: 64px;
    border-radius: 32px;
    background: #FFF;
    border: 1px solid #E6EBF3;
    color: #000;
    cursor: pointer;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.15s ease, transform 0.15s ease;
}

.ot1-reviews__btn svg {
    display: block;
    width: 24px;
    height: 24px;
}

@media (hover: hover) {
    .ot1-reviews__btn:hover {
        background: #0055FF;
        border-color: #0055FF;
        color: #FFF;
    }
}

.ot1-reviews__btn:active {
    transform: scale(0.95);
}

.ot1-reviews__next {
    background: #0055FF;
    border-color: #0055FF;
    color: #FFF;
}

/* ---------- S18 faqs（族标准手风琴） ---------- */
.ot1-faqs {
    background: #FFF;
    padding: 120px 40px;
}

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

.ot1-faqs__container h2 {
    font-size: 36px;
    line-height: 47px;
    font-weight: 700;
    color: #000;
    text-align: center;
    margin: 0 0 83px;
}

.ot1-faqs__list {
    max-width: 1200px;
    margin: 0 auto;
}

.ot1-faqs__item {
    border-bottom: 1px solid #E5E7EB;
}

.ot1-faqs__item:first-child {
    border-top: 1px solid #E5E7EB;
}

.ot1-faqs__qrow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 40px 0;
}

.ot1-faqs__title {
    margin: 0;
    flex: 1 1 auto;
    min-width: 0;
}

.ot1-faqs__title button {
    display: block;
    width: 100%;
    text-align: left;
    background: none;
    border: 0;
    padding: 0;
    font-family: inherit;
    font-size: 20px;
    line-height: 26px;
    font-weight: 700;
    color: #000;
    cursor: pointer;
    transition: color 0.2s ease;
    overflow-wrap: break-word;
}

.ot1-faqs__item.is-open .ot1-faqs__title button {
    color: #0055FF;
}

.ot1-faqs__icon {
    flex: 0 0 32px;
    width: 32px;
    height: 32px;
    display: inline-flex;
}

.ot1-faqs__icon img {
    width: 32px;
    height: 32px;
    transition: transform 0.25s ease;
    transform: rotate(0deg);
}

.ot1-faqs__item.is-open .ot1-faqs__icon img {
    transform: rotate(180deg);
}

.ot1-faqs__a {
    padding: 0 0 40px;
}

.ot1-faqs__a p {
    margin: 0;
    font-size: 16px;
    line-height: 21px;
    color: #000;
    overflow-wrap: break-word;
}

.ot1-faqs__a a {
    color: #0055FF;
    text-decoration: none;
}

@media (hover: hover) {
    .ot1-faqs__a a:hover {
        text-decoration: underline;
    }
}

/* ---------- S19 cta（深蓝大卡） ---------- */
.ot1-cta {
    background: #FFF;
    padding: 0 40px 120px;
}

.ot1-cta__card {
    position: relative;
    max-width: 1280px;
    margin: 0 auto;
    min-height: 500px;
    background: #021A60;
    border-radius: 24px;
    padding: 105px 72px 0 72px;
    overflow: hidden;
}

.ot1-cta__info {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.ot1-cta__logo {
    display: block;
    width: 152px;
    height: 26px;
}

.ot1-cta__info h2 {
    margin-top: 16px;
    max-width: 596px;
    font-size: 36px;
    line-height: 48px;
    font-weight: 700;
    color: #FFF;
    text-align: left;
}

.ot1-cta__info p {
    margin: 16px 0 0;
    max-width: 596px;
    font-size: 18px;
    line-height: 28px;
    color: #FFF;
}

.ot1-cta__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 16px;
    min-height: 64px;
    padding: 0 59px;
    border-radius: 8px;
    background: #0055FF;
    color: #FFF;
    font-size: 18px;
    line-height: 24px;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
    transition: background-color 0.15s ease, transform 0.15s ease;
}

@media (hover: hover) {
    .ot1-cta__btn:hover {
        background: #0046CC;
    }
}

.ot1-cta__btn:active {
    transform: scale(0.97);
}

.ot1-cta__illust {
    position: absolute;
    right: 72px;
    top: 60px;
    width: 540px;
    height: 380px;
}

/* ---------- 滚动 reveal ---------- */
.ot-ready .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.ot-ready .reveal.is-visible {
    opacity: 1;
    transform: none;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1439px) {
    .ot1-ways__panel {
        grid-template-columns: minmax(0, 1fr) minmax(0, 481px);
    }

    .ot1-ways__shot {
        width: 100%;
    }

    .ot1-compare__row {
        grid-template-columns: 220px minmax(0, 1fr) minmax(0, 1fr);
    }

    /* P3-1 收口: 200→220 使 14/700 标签单行（'Maximum upload file size' 169px 需求 > 200-40 内容宽） */
    .ot1-boxfiles__row {
        grid-template-columns: 240px minmax(0, 1fr) minmax(0, 1.2fr);
    }

    .ot1-decision__bg {
        background-size: cover;
    }

    .ot1-syncstep__card {
        grid-template-columns: 400px minmax(0, 1fr);
    }
}

@media (max-width: 1199px) {

    .ot1-betterfit__grid,
    .ot1-explore__grid,
    .ot1-issues__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ot1-privacy__row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ot1-ways__panel {
        grid-template-columns: 1fr;
    }

    .ot1-ways__shot {
        width: 581px;
        max-width: 100%;
        margin: 0 auto;
    }

    .ot1-benefits__bento {
        grid-template-columns: 1fr;
    }

    .ot1-benefits__lead {
        padding-bottom: 24px;
    }

    .ot1-enterprise__step {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
        gap: 40px;
    }

    .ot1-enterprise__shot img {
        width: 100%;
    }

    .ot1-syncstep__card {
        grid-template-columns: 1fr;
    }

    .ot1-syncstep__item {
        border-radius: 8px;
    }

    .ot1-syncstep__shot {
        margin: 16px 0 0;
    }

    .ot1-decision__scen,
    .ot1-decision__conns,
    .ot1-decision__methods {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .ot1-decision__fan,
    .ot1-decision__conns {
        display: none;
    }

    .ot1-decision__route {
        height: 56px;
    }

    .ot1-reviews__track {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 24px;
        transform: none !important;
    }

    .ot1-reviews__card {
        flex: 1 1 auto;
        width: auto;
    }

    .ot1-reviews__fade,
    .ot1-reviews__nav {
        display: none;
    }

    .ot1-cta__illust {
        width: 440px;
        height: auto;
    }
}

@media (max-width: 991px) {
    .ot1-checklist__grid {
        grid-template-columns: 1fr;
    }

    .ot1-ck__item {
        gap: 16px;
        padding: 16px;
    }

    .ot1-manual__steps li {
        align-items: flex-start;
    }

    .ot1-issues__grid {
        gap: 16px;
    }

    .ot1-privacy__card {
        padding: 32px 24px;
    }

    .ot1-privacy__hcard {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 767px) {

    .ot1-compare,
    .ot1-ways,
    .ot1-checklist,
    .ot1-boxfiles,
    .ot1-benefits,
    .ot1-manual,
    .ot1-betterfit,
    .ot1-privacy,
    .ot1-enterprise,
    .ot1-syncstep,
    .ot1-decision,
    .ot1-issues,
    .ot1-explore,
    .ot1-faqs {
        padding: 64px 20px;
    }

    .ot1-reviews {
        padding: 64px 0;
    }

    .ot1-cta {
        padding: 0 20px 64px;
    }

    .ot1-hero {
        padding: 104px 20px 56px;
    }

    .ot1-hero__inner {
        padding: 0;
    }

    .ot1-hero__inner h1 {
        font-size: 30px;
        line-height: 40px;
    }

    .ot1-hero__desc {
        font-size: 16px;
        line-height: 24px;
    }

    .ot1-hero__btn {
        min-width: 0;
        width: 100%;
        white-space: normal;
        text-align: center;
    }

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

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

    .ot1-sec-head p {
        font-size: 16px;
        line-height: 24px;
    }

    /* 对比表堆叠（自适应/多语言安全，docx 开发说明） */
    .ot1-compare__row {
        display: block;
    }

    .ot1-compare__row--head {
        display: flex;
    }

    .ot1-compare__row--head .ot1-compare__dim {
        flex: 1 1 40%;
        height: auto;
        min-height: 56px;
    }

    .ot1-compare__row--head .ot1-compare__col {
        flex: 1 1 30%;
        height: auto;
        min-height: 56px;
        padding: 10px 6px;
        font-size: 13px;
        gap: 4px;
    }

    .ot1-compare__row--head .ot1-compare__col img {
        width: 18px;
        height: 18px;
    }

    .ot1-compare__row {
        padding: 12px 16px;
        border-bottom: 1px solid #E6EBF3;
        background: #FFF !important;
    }

    .ot1-compare__dim {
        min-height: 0;
        padding: 0 0 8px;
        border: 0;
        font-size: 16px;
    }

    .ot1-compare__col {
        justify-content: flex-start;
        text-align: left;
        min-height: 0;
        padding: 6px 0;
        border: 0;
    }

    .ot1-compare__col::before {
        content: attr(data-label) ": ";
        flex: 0 0 auto;
        margin-right: 6px;
        font-weight: 700;
        color: #000;
    }

    .ot1-compare__row--head .ot1-compare__col::before,
    .ot1-compare__row--head .ot1-compare__dim::before {
        content: none;
    }

    .ot1-ways__tabs {
        width: 100%;
    }

    .ot1-ways__tab {
        padding: 9px 10px;
        font-size: 14px;
        min-height: 56px;
    }

    .ot1-ways__panel {
        padding: 24px 20px;
    }

    .ot1-ways__top {
        flex-direction: column;
    }

    .ot1-ways__quota {
        width: 120px;
    }

    .ot1-ways__note {
        font-size: 16px;
        line-height: 24px;
    }

    .ot1-checklist__card {
        padding: 24px 20px;
    }

    .ot1-boxfiles__row {
        display: block;
    }

    .ot1-boxfiles__row--head {
        display: none;
    }

    .ot1-boxfiles__name {
        border-right: 0;
        padding: 16px;
        font-size: 18px;
    }

    .ot1-boxfiles__chal {
        border-right: 0;
        padding: 12px 16px;
    }

    .ot1-boxfiles__chal::before {
        content: "Challenge: ";
        font-weight: 700;
        color: #EF6F1C;
        flex: 0 0 auto;
        margin-right: 4px;
    }

    .ot1-boxfiles__sol {
        padding: 12px 16px;
        background: #F1F6FF;
    }

    .ot1-boxfiles__sol::before {
        content: "Solution: ";
        font-weight: 700;
        color: #0055FF;
        flex: 0 0 auto;
        margin-right: 4px;
    }

    .ot1-benefits__grid {
        grid-template-columns: 1fr;
    }

    .ot1-benefits__art {
        margin-top: 24px;
        height: auto;
        padding: 24px;
    }

    .ot1-benefits__lead h3 {
        font-size: 26px;
        line-height: 34px;
    }

    .ot1-manual__head h3 {
        font-size: 24px;
        line-height: 32px;
    }

    .ot1-manual__block+.ot1-manual__block {
        margin-top: 64px;
    }

    .ot1-betterfit__grid,
    .ot1-explore__grid,
    .ot1-issues__grid,
    .ot1-privacy__row,
    .ot1-privacy__wide {
        grid-template-columns: 1fr;
    }

    .ot1-enterprise__step,
    .ot1-enterprise__step--flip {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .ot1-enterprise__step--flip .ot1-enterprise__shot {
        order: 0;
    }

    .ot1-enterprise__txt h3 {
        font-size: 24px;
        line-height: 32px;
    }

    .ot1-enterprise__txt p {
        font-size: 16px;
        line-height: 24px;
    }

    .ot1-syncstep__pills {
        margin-top: 0;
    }

    .ot1-syncstep__card {
        padding: 12px;
    }

    .ot1-syncstep__shot {
        padding: 10px;
    }

    .ot1-decision__route {
        height: 56px;
    }

    .ot1-decision__scen,
    .ot1-decision__methods {
        grid-template-columns: 1fr;
    }

    .ot1-decision__scard {
        min-height: 0;
        padding: 16px;
    }

    .ot1-reviews__track {
        grid-template-columns: 1fr;
    }

    .ot1-reviews__card {
        flex: 1 1 auto;
    }

    .ot1-faqs__qrow {
        padding: 28px 0;
        gap: 12px;
    }

    .ot1-faqs__title button {
        font-size: 17px;
        min-height: 44px;
    }

    .ot1-cta__card {
        padding: 48px 24px;
        min-height: 0;
    }

    .ot1-cta__illust {
        position: static;
        width: 100%;
        max-width: 440px;
        height: auto;
        margin-top: 24px;
    }

    .ot1-cta__info h2 {
        font-size: 26px;
        line-height: 36px;
    }

    .ot1-cta__btn {
        width: 100%;
        white-space: normal;
        text-align: center;
    }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
    .ot-ready .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .ot1-hero__btn,
    .ot1-ways__btn,
    .ot1-ways__tab,
    .ot1-ck__item,
    .ot1-syncstep__item,
    .ot1-explore__btn,
    .ot1-reviews__btn,
    .ot1-cta__btn,
    .ot1-faqs__icon img,
    .ot1-faqs__title button {
        transition: none !important;
    }
}

/* ---------- focus-visible ---------- */
main .ot1-hero a:focus-visible,
main .ot1-ways a:focus-visible,
main .ot1-ways button:focus-visible,
main .ot1-checklist button:focus-visible,
main .ot1-explore a:focus-visible,
main .ot1-reviews button:focus-visible,
main .ot1-faqs button:focus-visible,
main .ot1-cta a:focus-visible,
main .ot1-syncstep button:focus-visible,
main .ot1-faqs a:focus-visible {
    outline: 2px solid #0055FF;
    outline-offset: 2px;
}