:root {
  --brand: #ff6a00;
  --brand-dark: #e25e00;
  --brand-soft: #fff3e9;
  --ink: #1d2330;
  --ink-2: #4a5468;
  --ink-3: #8a93a6;
  --line: #e8ebf1;
  --bg-soft: #f7f9fc;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(29, 35, 48, .06);
  --shadow-lg: 0 16px 48px rgba(29, 35, 48, .12);
}

.metric-tags { display: flex; flex-wrap: wrap; gap: .7rem; }
.metric-tag { display: inline-flex; align-items: center; gap: .5rem; padding: .45rem .9rem; border: 1px solid rgba(255,255,255,.22); border-radius: 999px; color: rgba(255,255,255,.92); font-size: 12px; font-weight: 500; background: rgba(255,255,255,.06); backdrop-filter: blur(4px); transition: .2s ease; }
.metric-tag:hover { border-color: var(--brand); background: rgba(255,106,0,.12); color: #fff; }
.metric-tag::before { content: ""; width: 6px; height: 6px; background: var(--brand); border-radius: 50%; }

/* 通用区块 */
.section-soft { background: var(--bg-soft); }
.case-3-swiper { background: linear-gradient(to bottom, var(--bg-soft) 0%, #fff 100%); }
.case-3-swiper .item:hover h5 {
  color: #ff6a00;
  transition: all 0.2s linear;
}
.case-3-swiper .item:hover img {
  transform: translate(-50%, -50%) scale(1.05);
}
#faq { border-top: 1px solid var(--line); }
.eyebrow {
  display: inline-block; color: var(--brand); font-weight: 700; font-size: .82rem;
  letter-spacing: .08em; margin-bottom: .6rem;
}
.section-title { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: .8rem!important; }
.section-desc { color: var(--ink-2); max-width: 760px; }

/* 卡片 */
.card-grid { display: grid; gap: 1.25rem; }
.advantages-grid { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 992px) { .advantages-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 576px) { .advantages-grid { grid-template-columns: 1fr; } }
.feature-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem 1.5rem; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  height: 100%;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(255,106,0,.4); }
.feature-icon {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand); font-size: 1.4rem; margin-bottom: 1rem;
}
.feature-card h3 { font-size: 1.12rem; margin-bottom: .5rem; }
.feature-card p { color: var(--ink-2); font-size: .94rem; margin: 0; }

#overview .section-title{text-align:left}
.tag-row { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.5rem; }
.tag {
  background: var(--brand-soft); color: var(--brand-dark); border: 1px solid #ffd9bd;
  border-radius: 999px; padding: .35rem 1rem; font-size: 12px; font-weight: 500;
}

/* 架构图 */
.arch {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 2rem; box-shadow: var(--shadow);
}
.arch-layer {
  border: 1px dashed var(--line); border-radius: 10px; padding: .9rem 1rem; margin-bottom: .8rem;
  background: var(--bg-soft);
}
.arch-layer .l-title { font-weight: 700; color: var(--ink); font-size: .95rem; }
.arch-layer .l-sub { color: var(--ink-3); font-size: .82rem; }
.arch-connector { text-align: center; color: var(--brand); font-size: 1.2rem; margin: .2rem 0; }

/* 方案框架：层级卡片 */
.ysy-architecture .container-md{
    gap: 12px;
}
.ysy-architecture .left{
    flex: 1;
}
.ysy-architecture .right{
    width: 180px;
    text-align: center;
}
.ysy-architecture .right>h5{
    border-radius: 5px;
    color: #fff;
    font-size: 24px;
    background: #ff6a00;
    line-height: 40px;
    margin-bottom: 0;
}
.ysy-architecture .right .flex{
    padding: 12px;
    border: 2px dashed #FF8933;
    border-top: none;
    border-radius: 0 0 5px 5px;
    background: #FFF9F5;
    height: calc(100% - 40px);
    align-items: center;
}
.ysy-architecture .right ul{
    width: 100%;
}
.ysy-architecture .right ul strong{
    display: block;
    padding: 4px 0;
    background: #FFBD91;
}
.ysy-architecture .right ul span{
    display: block;
    padding: 2px 0;
    border: 1px dashed #ffcaa5;
    background: #fff;
    margin-top: 12px;
}
.ysy-architecture h5.flex{
    width: 126px;
    margin-bottom: 0;
    justify-content: center;
    align-items: center;
    border-radius: 5px;
    border: 2px solid #FF8933;
    background: #FFF9F5;
    text-align: center;
    padding: 10px 0;
    color: #494949;
}
.ysy-architecture .one,.ysy-architecture .three,.ysy-architecture .four{
    flex: 1;
    text-align: center;
}
.ysy-architecture .left>.flex{
    margin-bottom: 12px;
    column-gap: 12px;
}
.ysy-architecture .left>.flex:last-child{
    margin-bottom: 0;
}
.ysy-architecture .one>h5,.ysy-architecture .four>h5{
    background: linear-gradient(90deg, #FF8933, #ff6a00, #FF8933);
    color: #fff;
    padding: 8px 0;
    margin-bottom: 0;
    border-radius: 5px;
}
.ysy-architecture .one ul{
    gap: 15px;
    width: 100%;
    padding: 12px 0;
    border: 2px dashed #FF8933;
    border-top: none;
    justify-content: center;
    border-radius: 0 0 5px 5px;
    background: #FFF9F5;
}
.ysy-architecture .one li{
    min-width: 60px;
}
.ysy-architecture .one li strong{
    color: #ff6a00;
    padding-right: 20px;
}
.ysy-architecture .one li span{
    padding: 1px 10px;
    border: 1px solid #FFC59C;
    background: #fff;
}
.ysy-architecture .two{
    flex: 1;
    background: #FFF0E5;
    border-radius: 5px;
    padding: 25px 0;
    justify-content: space-evenly;
}
.ysy-architecture .two span{
    position: relative;
    display: block;
    width: 6px;
}
.ysy-architecture .two span::before{
    content: '';
    display: block;
    position: absolute;
    width: 100%;
    height: calc(100% + 35px);
    right: 100%;
    top: -20px;
    border-bottom: 1px dashed #ff6a00;
    border-right: 1px dashed #ff6a00;
    transform: skew(0deg, 45deg);
}
.ysy-architecture .two span::after{
    content: '';
    display: block;
    position: absolute;
    width: 100%;
    height: calc(100% + 35px);
    left: 100%;
    top: -15px;
    border-top: 1px solid #ff6a00;
    border-left: 1px solid #ff6a00;
    transform: skew(0deg, 45deg);
}
.ysy-architecture .three strong{
    display: inline-block;
    font-size: 22px;
    color: #fff;
    background: #ff6a00;
    border-radius: 5px;
    padding: 10px 40px;
    line-height: 1;
}
.ysy-architecture .four ul{
    gap: 6px;
    border: 2px dashed #FF8933;
    border-top: none;
    padding: 12px;
    flex: 1;
    border-radius: 0 0 5px 5px;
    background: #FFF9F5;
}
.ysy-architecture .four li{
    flex: 1 1 15%;
    padding: 6px 0;
    border: 1px dashed #ffcaa5;
    border-radius: 4px;
    text-align: center;
    line-height: 1;
    background: #fff;
}
.ysy-architecture .five{
    padding: 22px 0;
    flex: 1;
    border-radius: 5px;
    justify-content: center;
    gap: 4vw;
    background: #FFF0E5;
}
.ysy-architecture .five .item span{
    position: relative;
    display: inline-block;
    padding: 6px 10px;
    background: #f7f8f8;
    line-height: 1;
    border-radius: 4px;
    border: 1px dashed #ffcaa5;
}
.ysy-architecture .five .item span:nth-child(1){
    margin-right: 30px;
}
.ysy-architecture .five .item span:nth-child(1)::before{
    content: '';
    position: absolute;
    width: 10px;
    height: calc(100% + 20px);
    top: -10px;
    right: -21px;
    background: #FF9346;
}
.ysy-architecture .five .item span:nth-child(2)::before{
    content: '';
    position: absolute;
    border: 10px solid transparent;
    border-top: 20px solid #FF9346;
    left: -26px;
    top: 100%;
}
.ysy-architecture .five .item span:nth-child(2)::after{
    content: '';
    position: absolute;
    border: 10px solid transparent;
    border-bottom: 20px solid #FF9346;
    left: -26px;
    top: -32px;
}
.ysy-architecture .six{
    gap: 12px;
    flex: 1;
}
.ysy-architecture .six>.item{
    flex: 1;
    border-radius: 5px;
    background: #FFF0E5;
    border: 1px solid #fff;
    box-shadow: 0 0 5px 4px rgba(254,227,210,.4);
}
.ysy-architecture .six>.item h5{
    text-align: center;
    color: #fff;
    background: #ff6a00;
    padding: 10px 0;
    line-height: 1;
    border-radius: 5px;
}
.ysy-architecture .six>.item ul{
    padding: 6px;
    gap: 4px;
    justify-content: center;
}
.ysy-architecture .six>.item li{
    font-size: 12px;
    line-height: 1;
    padding: 5px;
    background: #fff;
    border-radius: 4px;
    border: 1px dashed #ffcaa5;
}
.ysy-architecture .six>.item img{
    width: 80%;
    display: block;
    margin: 15px auto;
}
.ysy-architecture .seven{
    width: 100%;
    gap: 12px;
}
.ysy-architecture .seven .item{
    flex: 1;
    border-radius: 5px;
    border: 2px dashed #FF8933;
    background: #FFF9F5;
    padding: 12px;
}
.ysy-architecture .seven .item h5{
    color: #ff6a00;
    text-align: center;
}
.ysy-architecture .seven ul{
    justify-content: space-evenly;
    margin-top: 10px;
}
.ysy-architecture .seven li img{
    height: 16px;
}

/* 场景卡 */
.scene-card {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: #fff; transition: .2s ease; height: 100%; display: flex; flex-direction: column;
}
.scene-card:hover { border-color: var(--brand); box-shadow: var(--shadow); }
.scene-card .scene-img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; display: block; background: var(--bg-soft); }
.scene-card .scene-body { padding: 1.1rem 1.2rem 1.3rem; flex: 1; }
.scene-card h3 { font-size: 1.05rem; margin: 0 0 .35rem; }
.scene-card p { margin: 0; }
.scenes-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 992px) { .scenes-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 576px) { .scenes-grid { grid-template-columns: 1fr; } }

/* 行业细分专属场景 · 速览版（标签切换式，更省高度） */
.industry-compact { margin-top: 4rem; padding-top: 3rem; border-top: 1px solid var(--line); }
.industry-compact .section-title { font-size: 1.6rem; }
.itab-nav { display: flex; flex-wrap: wrap; gap: .5rem; justify-content: center; margin-bottom: 1.5rem; }
.itab { border: 1px solid var(--line); background: #fff; color: var(--ink-2); border-radius: 999px; padding: .5rem 1.4rem; font-size: .95rem; font-weight: 500; cursor: pointer; transition: .2s ease; }
.itab:hover { border-color: var(--brand); color: var(--brand); }
.itab.active { background: var(--brand); border-color: var(--brand); color: #fff; }
.itab-panel { display: none; }
.itab-panel.active { display: block; animation: itabFade .25s ease; }
@keyframes itabFade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.itab-cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.6rem; box-shadow: var(--shadow); }
.itab-cols h5 { font-size: .8rem; color: var(--brand); font-weight: 700; margin: 0 0 .7rem; text-transform: uppercase; letter-spacing: .03em; }
.itab-cols ul { list-style: none; padding: 0; margin: 0; }
.itab-cols li { font-size: .9rem; color: var(--ink-2); line-height: 1.6; padding: .3rem 0; border-bottom: 1px dashed var(--line); }
.itab-cols li:last-child { border-bottom: none; }
@media (max-width: 767px) { .itab-cols { grid-template-columns: 1fr; gap: 1.1rem; } }

/* 价值 */
.value-card {
  background: var(--ink); color: #fff; border-radius: var(--radius);
  padding: 2rem 1.5rem; text-align: center;
}
.value-card h3 { color: #fff; font-size: 1.15rem; }
.value-card .vi { font-size: 2rem; color: var(--brand); }

.case-3-swiper .swiper-container{
    margin: 0 -.75rem;
}
.case-3-swiper .swiper-slide{
    width: calc(33.33% - 1.5rem);
    margin: 0 .75rem;
    height: auto;
}
.case-3-swiper .item{
    height: 100%;
    position: relative;
    background: #f8f9fa;
}
.case-3-swiper .item .text{
    padding: 26px 30px;
    box-shadow: inset 0 0px 2px 0 #d8d8d8;
}
.case-3-swiper .item p{
    margin-bottom: 50px;
    color: #666;
    height: 64px;
}
.case-3-swiper .item span{
    position: absolute;
    left: 30px;
    bottom: 26px;
}
.case-3-swiper .item a{
    display: block;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

/* FAQ - pure JS accordion */
.accordion-item { border: 1px solid var(--line); border-radius: 12px !important; margin-bottom: .8rem; overflow: hidden; background: #fff; }
.accordion-header { margin: 0 !important; line-height: 1; }
.accordion-item .accordion-button { font-weight: 500; color: var(--ink); background: #fff; box-shadow: none; width: 100%; display: flex; justify-content: space-between; align-items: center; text-align: left; padding: 1rem 1.25rem !important; border: 0; line-height: 1.4; }
.accordion-item.show .accordion-button { background: var(--brand-soft); color: var(--brand-dark); box-shadow: none; }
.accordion-item .accordion-button:focus, .accordion-item .accordion-button:focus-visible, .accordion-item .accordion-button:active { outline: none; box-shadow: none; }
.accordion-item .accordion-button::after { content: ""; flex-shrink: 0; width: 1rem; height: 1rem; margin-left: auto; background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23212529'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e"); background-repeat: no-repeat; background-size: 1rem; transition: transform .2s ease-in-out; }
.accordion-item.show .accordion-button::after { transform: rotate(-180deg); }
.accordion-item:last-child { margin-bottom: 0; }
.accordion-item .accordion-collapse { display: none; }
.accordion-item.show .accordion-collapse { display: block; }
.accordion-item .accordion-body { color: var(--ink-2); padding: .85rem 1.25rem !important; }
.faq-wrap { display: grid; grid-template-columns: 300px 1fr; gap: 2rem; align-items: end; }
#overview { position: relative; overflow: hidden; }
#overview .container {
  position: relative;
  z-index: 1;
  background: url(https://www.os-easy.com/uploads/allimg/260813/cloud-overview-faded.webp);
  background-size: auto 100%;
  background-position: center right;
  background-repeat: no-repeat;
  padding-bottom: 10px;
}
#overview .content-card {
  max-width: 760px;
}
@media (max-width: 768px) {
  #overview .content-card { padding: 1.5rem; }
}
.faq-side { display: flex; flex-direction: column; gap: 1rem; }
.related-card {
  display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.15rem 1.2rem; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;position: relative;
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(255,106,0,.4); }
.related-card .rc-tag { font-size: .72rem; color: var(--brand-dark); font-weight: 600; }
.related-card .rc-title { font-weight: 700; color: var(--ink); margin: .25rem 0 .35rem; font-size: 1.02rem; }
.related-card .rc-desc { color: var(--ink-2); font-size: .86rem; margin: 0; }
.related-card .rc-more { color: var(--brand); font-size: .84rem; font-weight: 600; margin-top: .55rem; display: inline-flex; align-items: center; gap: .25rem; }
.related-card>a{position:absolute;top:0;right:0;bottom:0;left:0;}
@media (max-width: 992px) { .faq-wrap { grid-template-columns: 1fr; } }

/* CTA */
.cta {
  background: linear-gradient(120deg, #ff6a00, #ff8a3d);
  border-radius: 20px; padding: 3rem 2rem; color: #fff; text-align: center;
}
.cta h2 { color: #fff; }
.cta .btn-light {
  border-radius: 999px; padding: .7rem 1.8rem; font-weight: 600; font-size: .95rem;
  color: var(--brand-dark); background: #fff; border: none;
  box-shadow: 0 6px 18px rgba(0,0,0,.12);
  transition: transform .15s ease, box-shadow .15s ease, background .2s ease;
}
.cta .btn-light:hover {
  background: #fff; color: var(--brand); transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0,0,0,.18);
}
.cta .btn-ghost {
  border-radius: 999px; padding: .7rem 1.8rem; font-weight: 600; font-size: .95rem;
  color: #fff; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.45);
  backdrop-filter: blur(4px);
  transition: transform .15s ease, background .2s ease, border-color .2s ease;
}
.cta .btn-ghost:hover {
  background: rgba(255,255,255,.2); border-color: rgba(255,255,255,.8); transform: translateY(-2px);
}

/* 滚动进入动画 */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }