/* LetsVPN · responsive product workspace */
:root{--blue:#2980FE;--blue-hover:#1768E8;--ink:#202b40;--muted:#617087;--line:#e4eaf3;--soft:#f5f8fd;--gradient:linear-gradient(90deg,#3558F2 0%,#7B4EF1 50%,#B84DDA 100%);--radius:26px;--shadow:0 12px 40px rgba(34,58,99,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--ink);font:400 16px/1.78 system-ui,-apple-system,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;overflow-wrap:anywhere}a{color:#2069d6;text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,summary:focus-visible{outline:3px solid #ffb343;outline-offset:4px}img{max-width:100%;height:auto;display:block}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.25;letter-spacing:-.035em;font-weight:650}h1{font-size:clamp(32px,4.3vw,54px)}h2{font-size:clamp(25px,3vw,36px)}h3{font-size:20px}p{color:var(--muted)}.container{width:min(1200px,calc(100% - 40px));margin-inline:auto}.section{padding-block:clamp(52px,7vw,94px)}.section.soft{background:var(--soft)}.section-heading{max-width:710px;margin-bottom:30px}.eyebrow,.category{display:inline-flex;color:#286bed;font-size:13px;font-weight:650;letter-spacing:.04em;margin-bottom:12px}.section-heading p{margin-bottom:0}.download-btn{display:inline-flex;justify-content:center;align-items:center;min-height:50px;padding:12px 28px;border-radius:13px;background:#2980FE!important;color:#fff!important;font-size:16px;font-weight:650;text-decoration:none!important;box-shadow:0 8px 20px rgba(24,96,225,.22);transition:background .2s ease,transform .2s ease;white-space:nowrap}.download-btn:hover{background:#1768E8!important;transform:translateY(-2px)}.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600}.skip-link{position:absolute;top:-80px;left:10px;background:#fff;padding:12px;z-index:100}.skip-link:focus{top:10px}.site-header{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:5}.header-row{min-height:78px;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:21px;font-weight:750;white-space:nowrap}.brand img{width:40px;height:40px;border-radius:11px;object-fit:contain;background:#f6f8ff}.desktop-nav{margin-left:auto;display:none;gap:19px;align-items:center}.desktop-nav a,.header-link{color:#526177;font-size:13px;font-weight:600}.desktop-nav a[aria-current=page]{color:#246fea}.header-link{margin-left:auto;white-space:nowrap}.mobile-menu{margin-left:auto;position:relative}.mobile-menu summary{list-style:none;cursor:pointer;font-size:14px;font-weight:600;padding:9px 10px}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-menu nav{position:absolute;right:0;top:45px;width:min(290px,calc(100vw - 40px));padding:12px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);display:grid}.mobile-menu nav a{padding:10px 12px;color:var(--ink)}.mobile-menu nav a[aria-current=page]{background:#eef5ff;color:#246fea;border-radius:9px}.connection-workspace-hero{background:var(--gradient);color:#fff;overflow:hidden}.hero-grid{display:grid;gap:26px;align-items:center;padding-block:clamp(52px,6vw,88px)}.hero-copy h1{max-width:650px}.hero-copy p{color:rgba(255,255,255,.93);max-width:575px}.hero-copy .eyebrow{color:#e2e9ff}.hero-actions{display:flex;gap:18px;align-items:center;flex-wrap:wrap;margin-top:25px}.hero-actions .text-link{color:#fff}.hero-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:28px}.hero-tags span{background:#ffffff22;border:1px solid #ffffff55;border-radius:50px;padding:4px 12px;font-size:13px}.hero-visual{position:relative;background:#ffffff20;border:1px solid #ffffff4d;border-radius:32px;padding:20px}.hero-visual>img{margin:auto;max-height:400px;object-fit:contain;filter:drop-shadow(0 15px 18px #1a236b22)}.status-panel{background:#fffffffa;border:1px solid #ecf0fa;border-radius:20px;color:var(--ink);padding:19px;box-shadow:var(--shadow);display:grid;gap:8px}.status-panel .status-top{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:#63718a}.status-items{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.status-items span{background:#f3f7fd;border-radius:9px;padding:7px 8px;font-size:12px;color:#42516a}.task-grid,.risk-grid,.scenario-grid,.steps-grid,.faq-grid,.detail-grid{display:grid;gap:16px}.task-card,.capability-card,.risk-card,.scenario-card,.step-card,.note-card,.faq-item,.detail-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 4px 16px #243b6506;min-width:0}.task-card,.capability-card{display:flex;flex-direction:column;align-items:flex-start}.task-card h3,.capability-card h3{margin:8px 0}.task-card p,.capability-card p{flex:1;margin-bottom:16px}.num-pill{display:inline-flex;width:35px;height:35px;align-items:center;justify-content:center;border-radius:12px;background:#edf4ff;color:#2978ea;font-size:13px;font-weight:700}.connection-capability-overview{display:grid;gap:16px}.capability-card.featured{background:linear-gradient(145deg,#eff5ff,#fff)}.split-section{display:grid;gap:30px;align-items:center}.media-panel{background:#eef3fc;border:1px solid #e7ecf6;border-radius:30px;min-height:250px;padding:24px;display:flex;align-items:center;justify-content:center}.media-panel img{max-height:390px;object-fit:contain}.bullet-row{padding:12px 0;border-bottom:1px solid var(--line);color:#46536a}.bullet-row:before{content:'✓';color:#2476ef;margin-right:11px}.subtle{font-size:14px;color:var(--muted)}.three-notes{display:grid;gap:14px;margin-top:24px}.note-card{background:#fbfcff}.note-card h3{font-size:17px}.security-panel{background:#f2f6fc;border:1px solid var(--line);border-radius:28px;padding:clamp(22px,4vw,42px)}.flow-line{display:grid;gap:13px;counter-reset:flow}.flow-point{position:relative;border-left:3px solid #3988fe;padding:6px 0 8px 18px}.flow-point strong{display:block}.risk-card{border-left:4px solid var(--blue)}.risk-card h3{font-size:17px}.risk-card p{margin:8px 0}.risk-card small{color:#3e5a7f}.process-steps .step-card{position:relative}.process-steps .step-card .num-pill{margin-bottom:12px}.step-card h3{font-size:17px}.faq-item{padding:0;overflow:hidden}.faq-item summary{cursor:pointer;padding:17px 20px;font-weight:600;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:'+';float:right;color:var(--blue)}.faq-item[open] summary:after{content:'−'}.faq-item p{padding:0 20px 18px;margin:0}.cta-section{background:var(--gradient);color:#fff;text-align:center;border-radius:32px;padding:clamp(32px,6vw,65px)}.cta-section p{color:#edf2ff;max-width:580px;margin:0 auto 22px}.cta-section .download-btn{background:#2980FE}.inner-hero{padding:62px 0 36px;background:linear-gradient(140deg,#f2f6ff,#fff 70%)}.inner-hero h1{max-width:840px}.inner-hero p{max-width:750px}.article-layout{display:grid;gap:25px;align-items:start}.article-copy{max-width:760px}.article-copy>p{font-size:16px}.article-copy h2{font-size:clamp(23px,2.5vw,30px);margin:30px 0 15px}.side-panel{border:1px solid var(--line);border-radius:24px;background:var(--soft);padding:22px}.side-panel a{display:block;padding:10px 0;border-bottom:1px solid #dfe7f3}.side-panel a:last-child{border:0}.page-cta{margin-top:24px}.article-list{padding-left:22px;color:var(--muted)}.article-list li{margin:8px 0}.site-footer{border-top:1px solid var(--line);background:#f6f8fc;padding:48px 0 24px}.footer-layout{display:grid;gap:28px}.footer-layout p{max-width:500px}.footer-brand{font-weight:700;font-size:18px}.footer-layout nav{display:flex;gap:12px 22px;flex-wrap:wrap}.footer-layout nav a{color:#47576e}.footer-bottom{margin-top:25px;padding-top:16px;border-top:1px solid var(--line);color:#7a8798;font-size:12px}
@media(min-width:640px){.task-grid,.scenario-grid,.risk-grid,.faq-grid,.steps-grid,.detail-grid,.three-notes{grid-template-columns:repeat(2,minmax(0,1fr))}.connection-capability-overview{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-visual{padding:24px}.footer-layout{grid-template-columns:1fr 1fr}}
@media(min-width:900px){.desktop-nav{display:flex}.mobile-menu{display:none}.header-link{margin-left:0}.hero-grid{grid-template-columns:1.05fr .95fr;gap:56px}.hero-visual{padding:28px}.status-panel{position:relative;margin:-40px 0 0 auto;width:82%}.task-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.connection-capability-overview{grid-template-columns:repeat(4,minmax(0,1fr))}.capability-card.featured{grid-column:span 2}.split-section{grid-template-columns:1fr 1fr;gap:65px}.split-section.reverse .media-panel{order:-1}.three-notes,.scenario-grid,.risk-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.process-steps .steps-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:65px}.footer-layout{grid-template-columns:1.3fr 1fr}}
@media(max-width:899px){.header-link{display:none}.hero-visual .status-panel{margin-top:16px}}
@media(max-width:420px){.container{width:calc(100% - 30px)}.hero-tags{gap:6px}.hero-tags span{font-size:12px}.status-items{grid-template-columns:1fr 1fr}.task-card,.capability-card,.risk-card,.scenario-card,.step-card{padding:19px}.hero-grid{padding-block:44px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}