/* 供畅宝 SRM 官网 v2 — 结构密度对齐主流 SRM 官网，深蓝工业风 */
:root {
  --ss-ink: #06101c;
  --ss-navy: #0b1a2e;
  --ss-panel: #10233c;
  --ss-cyan: #2ec4ff;
  --ss-blue: #1a86d9;
  --ss-amber: #e8a04a;
  --ss-text: #f3f6fb;
  --ss-muted: rgba(243, 246, 251, 0.7);
  --ss-line: rgba(255, 255, 255, 0.1);
  --ss-font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ss-display: "Outfit", "Noto Sans SC", sans-serif;
  --ss-nav-h: 72px;
  --ss-radius: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.srm-site {
  margin: 0;
  font-family: var(--ss-font);
  color: var(--ss-text);
  background: var(--ss-ink);
  -webkit-font-smoothing: antialiased;
}
body.ss-lock { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
img { max-width: 100%; display: block; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.ss-wrap { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }

/* ===== Nav ===== */
.ss-nav {
  position: fixed; inset: 0 0 auto; z-index: 50;
  height: var(--ss-nav-h);
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 16px;
  padding: 0 clamp(16px, 3vw, 40px);
  transition: background .25s ease, box-shadow .25s ease;
}
.ss-nav.is-solid {
  background: rgba(6, 16, 28, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
}
.ss-logo { display: flex; align-items: center; gap: 12px; min-width: 0; }
.ss-logo img {
  width: 36px;
  height: 36px;
  border-radius: 0;
  object-fit: contain;
  background: transparent;
}
.ss-logo span { display: flex; flex-direction: column; gap: 2px; line-height: 1.15; }
.ss-logo b { font-family: var(--ss-display); font-size: 18px; font-weight: 700; letter-spacing: .06em; }
.ss-logo small { font-size: 11px; color: var(--ss-muted); }
.ss-menu { display: flex; justify-content: center; gap: clamp(10px, 1.8vw, 26px); }
.ss-menu a { font-size: 14px; color: var(--ss-muted); transition: color .2s; }
.ss-menu a:hover { color: #fff; }
.ss-actions { display: flex; gap: 10px; align-items: center; }
.ss-burger { display: none; width: 44px; height: 44px; border: 0; background: transparent; padding: 12px; cursor: pointer; }
.ss-burger i { display: block; height: 2px; margin: 5px 0; background: #fff; border-radius: 2px; }

.ss-btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: 0 18px; border-radius: 10px; border: 1px solid transparent;
  cursor: pointer; font-size: 14px; font-weight: 600; transition: transform .15s, filter .2s, background .2s, border-color .2s;
}
.ss-btn:hover { transform: translateY(-1px); }
.ss-btn-primary {
  background: linear-gradient(135deg, #35c4f5, #1a86d9 60%, #146ab3);
  color: #fff; box-shadow: 0 12px 28px rgba(26, 134, 217, .35);
}
.ss-btn-primary:hover { filter: brightness(1.06); }
.ss-btn-ghost { background: transparent; border-color: rgba(255,255,255,.28); color: #fff; }
.ss-btn-line { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.32); color: #fff; }
.ss-btn-lg { min-height: 50px; padding: 0 26px; font-size: 15px; }
.ss-btn-block { width: 100%; }
.ss-text-link { display: inline-block; margin-top: 16px; font-size: 14px; font-weight: 600; color: var(--ss-cyan); }

/* ===== Hero ===== */
.ss-hero {
  position: relative; min-height: 100vh; min-height: 100dvh;
  display: flex; align-items: flex-end;
  padding: calc(var(--ss-nav-h) + 40px) 0 56px; overflow: hidden;
  text-align: left;
}
.ss-hero-media { position: absolute; inset: 0; z-index: 0; }
.ss-hero-media img {
  width: 100%; height: 100%; object-fit: cover; object-position: center 42%;
  transform: scale(1.06); animation: ssDrift 30s ease-in-out infinite alternate;
  filter: saturate(1.05) contrast(1.05);
}
.ss-hero-veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(105deg, rgba(6,16,28,.93) 0%, rgba(6,16,28,.72) 38%, rgba(6,16,28,.45) 70%, rgba(6,16,28,.55) 100%),
    linear-gradient(180deg, rgba(6,16,28,.35) 0%, rgba(6,16,28,.25) 40%, rgba(6,16,28,.88) 100%);
}
.ss-hero-inner {
  position: relative; z-index: 1;
  width: min(980px, calc(100% - 40px));
  margin: 0 auto 0 clamp(20px, 5vw, 72px);
  animation: ssRise .85s ease both;
}
.ss-hero-brand {
  margin: 0; font-family: var(--ss-display);
  font-size: clamp(48px, 9vw, 92px); font-weight: 800; letter-spacing: .08em; line-height: .95;
  background: linear-gradient(92deg, #fff 10%, var(--ss-cyan) 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.ss-hero-product {
  margin: 8px 0 14px; font-size: 15px; font-weight: 600; letter-spacing: .18em;
  text-transform: uppercase; color: var(--ss-amber);
}
.ss-hero h1 {
  margin: 0 0 16px; max-width: 15em;
  font-size: clamp(24px, 3.6vw, 38px); font-weight: 800; line-height: 1.3;
}
.ss-hero-sub {
  margin: 0 0 14px; max-width: 40em;
  font-size: clamp(14px, 1.55vw, 17px); line-height: 1.75; color: var(--ss-muted);
}
.ss-hero-highlight {
  margin: 0 0 26px; max-width: 52em;
  font-size: 13px; line-height: 1.7; color: rgba(243,246,251,.88);
  letter-spacing: .02em;
}
.ss-hero-highlight-line {
  display: block;
}
.ss-hero-highlight-line + .ss-hero-highlight-line {
  margin-top: 4px;
}
.ss-hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 36px; justify-content: flex-start; }
.ss-hero-stats {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px; max-width: 880px; margin: 0;
}
.ss-hero-stats li {
  padding: 14px 12px 12px;
  border-top: 2px solid rgba(46, 196, 255, .55);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
}
.ss-hero-stats strong {
  display: block; font-family: var(--ss-display); font-size: clamp(16px, 1.6vw, 24px); font-weight: 700; line-height: 1.2;
  color: var(--ss-cyan);
}
.ss-hero-stats em { font-style: normal; color: var(--ss-cyan); }
.ss-hero-stats span { display: block; margin-top: 6px; font-size: 12px; color: var(--ss-muted); }

/* ===== Sections（恢复左对齐，保留配图） ===== */
.ss-section { padding: clamp(72px, 10vw, 110px) 0; position: relative; text-align: left; }
.ss-kicker {
  margin: 0 0 10px; font-size: 12px; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase; color: var(--ss-cyan);
}
.ss-section h2 {
  margin: 0 0 16px; max-width: 28em;
  font-size: clamp(22px, 2.8vw, 36px); font-weight: 800; line-height: 1.35;
}
.ss-lead {
  margin: 0 0 36px; max-width: 48em;
  font-size: clamp(15px, 1.45vw, 17px); line-height: 1.85; color: var(--ss-muted);
}
.ss-banner {
  margin: 0 0 32px; max-width: 100%;
  border-radius: 16px; overflow: hidden;
  border: 1px solid var(--ss-line);
  box-shadow: 0 20px 50px rgba(0,0,0,.35);
}
.ss-banner img { width: 100%; height: auto; display: block; object-fit: cover; max-height: 360px; }
.ss-banner-sm { max-width: 720px; }
.ss-card-media {
  margin: 0 0 14px; border-radius: 12px; overflow: hidden;
  border: 1px solid var(--ss-line); aspect-ratio: 4/3;
}
.ss-card-media img { width: 100%; height: 100%; object-fit: cover; }

/* Value props */
.ss-value {
  background:
    radial-gradient(ellipse 50% 40% at 0% 0%, rgba(46,196,255,.12), transparent 55%),
    var(--ss-navy);
}
.ss-value-grid {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-top: 28px;
}
.ss-value-item {
  padding: 18px 18px 24px; border-radius: var(--ss-radius);
  background: linear-gradient(165deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border: 1px solid var(--ss-line);
  animation: ssRise .7s ease both; animation-delay: calc(var(--i, 1) * .07s);
  text-align: left;
}
.ss-value-media {
  margin: 0 0 16px; border-radius: 12px; overflow: hidden; aspect-ratio: 4/3;
  border: 1px solid var(--ss-line);
}
.ss-value-media img { width: 100%; height: 100%; object-fit: cover; }
.ss-value-no {
  display: block; margin-bottom: 10px;
  font-family: var(--ss-display); font-size: 24px; font-weight: 700; color: rgba(46,196,255,.5);
}
.ss-value-item h3 { margin: 0 0 12px; font-size: 20px; }
.ss-value-item p { margin: 0; font-size: 14px; line-height: 1.75; color: var(--ss-muted); }

/* Modules / tabs */
.ss-modules { background: linear-gradient(180deg, #081420, #0d1f36); }
.ss-tab-nav {
  display: flex; flex-wrap: wrap; justify-content: flex-start; gap: 8px; margin: 0 0 24px;
  padding: 8px; border-radius: 12px; background: rgba(0,0,0,.22); border: 1px solid var(--ss-line);
}
.ss-tab-btn {
  min-height: 44px; padding: 0 18px; border: 0; border-radius: 8px;
  background: transparent; color: var(--ss-muted); cursor: pointer; font-weight: 600; font-size: 14px;
}
.ss-tab-btn.is-active, .ss-tab-btn:hover { background: rgba(46,196,255,.16); color: #fff; }
.ss-tab-panel {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 36px; align-items: center;
  padding: 8px 0 0; text-align: left;
}
.ss-tab-panel[hidden] { display: none !important; }
.ss-tab-copy { text-align: left; }
.ss-tab-copy h3 { margin: 0 0 12px; font-size: 26px; }
.ss-tab-copy > p { margin: 0 0 18px; max-width: 34em; font-size: 15px; line-height: 1.8; color: var(--ss-muted); }
.ss-tab-copy ul {
  margin: 0 0 24px; max-width: 28em; text-align: left;
}
.ss-tab-copy li {
  position: relative; padding: 10px 0 10px 22px;
  border-bottom: 1px solid var(--ss-line); font-size: 14px; color: rgba(243,246,251,.88);
}
.ss-tab-copy li::before {
  content: ""; position: absolute; left: 0; top: 1.05em;
  width: 8px; height: 8px; border-radius: 50%; background: var(--ss-amber);
}
.ss-tab-visual { position: relative; text-align: left; }
.ss-shot {
  margin: 0; border-radius: 16px; overflow: hidden;
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: 0 28px 60px rgba(0,0,0,.4);
  background: #0a1628;
}
.ss-shot img { width: 100%; height: auto; display: block; object-fit: cover; aspect-ratio: 16/10; }
.ss-screen-cap {
  margin: 14px 0 0; text-align: center; font-size: 13px; color: var(--ss-muted); letter-spacing: .08em;
}

/* Mid CTA */
.ss-mid-cta {
  padding: 56px 0;
  background:
    radial-gradient(ellipse 70% 80% at 20% 50%, rgba(46, 196, 255, 0.22), transparent 55%),
    radial-gradient(ellipse 50% 60% at 90% 40%, rgba(232, 160, 74, 0.14), transparent 50%),
    linear-gradient(105deg, #0a1c34 0%, #123456 48%, #0c2038 100%);
  border-top: 1px solid var(--ss-line);
  border-bottom: 1px solid var(--ss-line);
  text-align: left;
}
.ss-mid-cta-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
  max-width: none; margin: 0 auto;
}
.ss-mid-cta h2 {
  margin: 0 0 10px;
  font-size: clamp(18px, 2.4vw, 28px);
  max-width: none;
  white-space: nowrap;
  line-height: 1.35;
}
.ss-mid-cta p { margin: 0; color: var(--ss-muted); max-width: 34em; line-height: 1.7; }
.ss-mid-cta-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-start; }

/* Industries */
.ss-industries {
  background:
    radial-gradient(ellipse 40% 50% at 100% 0%, rgba(232,160,74,.1), transparent 50%),
    var(--ss-ink);
}
.ss-industry-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px;
}
.ss-industry-grid li {
  padding: 22px 20px; border-radius: var(--ss-radius);
  border: 1px solid var(--ss-line);
  background: rgba(255,255,255,.03);
  transition: border-color .2s, transform .2s, background .2s;
  text-align: left;
}
.ss-industry-grid li:hover {
  border-color: rgba(46,196,255,.45); background: rgba(46,196,255,.06); transform: translateY(-2px);
}
.ss-industry-grid h3 { margin: 0 0 8px; font-size: 18px; }
.ss-industry-grid p { margin: 0; font-size: 14px; line-height: 1.65; color: var(--ss-muted); }

/* Benefits metrics */
.ss-benefits { background: linear-gradient(180deg, #0a1628, #123056 70%, #0c1b33); }
.ss-metric-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px;
}
.ss-metric-grid li {
  text-align: center; padding: 28px 16px;
  border-radius: var(--ss-radius); background: rgba(0,0,0,.22); border: 1px solid var(--ss-line);
}
.ss-metric-grid strong {
  display: block; font-family: var(--ss-display);
  font-size: clamp(28px, 4vw, 40px); font-weight: 800; color: var(--ss-cyan); letter-spacing: .02em;
}
.ss-metric-grid span { display: block; margin-top: 8px; font-size: 14px; color: var(--ss-muted); }

/* Deploy */
.ss-deploy { background: var(--ss-navy); }
.ss-deploy-grid {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-top: 8px;
}
.ss-deploy-grid article {
  padding: 16px 16px 22px; border-radius: var(--ss-radius);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border: 1px solid var(--ss-line);
  text-align: left;
}
.ss-deploy-grid h3 {
  margin: 0 0 10px; font-size: 17px; padding-bottom: 10px;
  border-bottom: 2px solid var(--ss-amber);
}
.ss-deploy-grid p { margin: 0; font-size: 14px; line-height: 1.7; color: var(--ss-muted); }
.ss-deploy-cta { margin-top: 36px; text-align: center; }

/* About */
.ss-about {
  background:
    radial-gradient(ellipse 60% 50% at 0% 50%, rgba(46,196,255,.1), transparent 55%),
    #07131f;
}
.ss-about-points {
  display: grid; gap: 12px; max-width: 760px; margin: 0 0 28px; text-align: left;
}
.ss-about-points li {
  padding: 18px 18px 18px 22px;
  border-left: 3px solid var(--ss-cyan);
  background: rgba(255,255,255,.04); border-radius: 0 12px 12px 0;
  font-size: 15px; line-height: 1.7; color: rgba(243,246,251,.9);
}
.ss-about-cta { text-align: left; }

/* Footer */
.ss-footer {
  background: #040a12; border-top: 1px solid var(--ss-line);
  padding: 48px 0 28px; color: var(--ss-muted); font-size: 14px;
}
.ss-footer-top {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px; margin-bottom: 36px;
}
.ss-footer-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; color: #fff; }
.ss-footer-logo img { width: 40px; height: 40px; border-radius: 0; object-fit: contain; }
.ss-footer-brand > p { margin: 0 0 10px; line-height: 1.65; max-width: 22em; }
.ss-footer-contact { font-size: 13px; line-height: 1.7; }
.ss-footer-col h4 { margin: 0 0 14px; color: #fff; font-size: 15px; }
.ss-footer-col li { margin-bottom: 10px; }
.ss-footer-col a, .ss-footer-col button {
  background: none; border: 0; padding: 0; color: var(--ss-muted); cursor: pointer; font-size: 14px;
}
.ss-footer-col a:hover, .ss-footer-col button:hover { color: #fff; }
.ss-footer-bottom {
  padding-top: 20px; border-top: 1px solid var(--ss-line); text-align: center; font-size: 13px;
}

/* Modal */
.ss-modal[hidden] { display: none !important; }
.ss-modal { position: fixed; inset: 0; z-index: 80; display: grid; place-items: center; padding: 20px; }
.ss-modal-backdrop { position: absolute; inset: 0; background: rgba(2,6,12,.75); backdrop-filter: blur(4px); }
.ss-modal-panel {
  position: relative; z-index: 1; width: min(440px, 100%); padding: 28px 24px 24px;
  border-radius: 16px; background: linear-gradient(180deg, #132742, #0d1a2e);
  border: 1px solid var(--ss-line); box-shadow: 0 24px 64px rgba(0,0,0,.45);
  animation: ssRise .35s ease both;
}
.ss-modal-x {
  position: absolute; top: 10px; right: 12px; width: 40px; height: 40px;
  border: 0; background: transparent; color: #fff; font-size: 28px; cursor: pointer;
}
.ss-modal-panel h2 { margin: 0 0 8px; font-size: 22px; }
.ss-modal-lead { margin: 0 0 20px; font-size: 14px; color: var(--ss-muted); line-height: 1.6; }
.ss-modal-panel label { display: block; margin-bottom: 14px; }
.ss-modal-panel label span { display: block; margin-bottom: 6px; font-size: 13px; color: var(--ss-muted); }
.ss-modal-panel input, .ss-modal-panel textarea {
  width: 100%; min-height: 44px; padding: 10px 12px; border-radius: 10px;
  border: 1px solid rgba(255,255,255,.16); background: rgba(0,0,0,.25); color: #fff; outline: none;
}
.ss-modal-panel textarea { min-height: 88px; resize: vertical; }
.ss-modal-panel input:focus, .ss-modal-panel textarea:focus { border-color: rgba(46,196,255,.55); }
.ss-form-msg { margin: 0 0 12px; font-size: 13px; }
.ss-form-msg.is-ok { color: #7dffb3; }
.ss-form-msg.is-err { color: #ff9b9b; }

@keyframes ssDrift {
  from { transform: scale(1.08) translate3d(0,0,0); }
  to { transform: scale(1.14) translate3d(-1.2%, 1%, 0); }
}
@keyframes ssRise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1024px) {
  .ss-value-grid, .ss-industry-grid, .ss-metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ss-deploy-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ss-tab-panel { grid-template-columns: 1fr; }
  .ss-footer-top { grid-template-columns: 1fr 1fr; }
  .ss-footer-brand { grid-column: 1 / -1; }
  .ss-hero-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .ss-nav { grid-template-columns: 1fr auto auto; }
  .ss-menu {
    display: none; position: absolute; top: var(--ss-nav-h); left: 0; right: 0;
    flex-direction: column; gap: 0; padding: 8px 16px 16px;
    background: rgba(6,16,28,.97); border-bottom: 1px solid var(--ss-line);
  }
  .ss-menu.is-open { display: flex; }
  .ss-menu a { padding: 14px 8px; border-bottom: 1px solid rgba(255,255,255,.06); color: #fff; font-size: 15px; }
  .ss-burger { display: inline-block; }
  .ss-actions .ss-btn-ghost { display: none; }
  .ss-hero-inner { margin-left: auto; margin-right: auto; }
}

@media (max-width: 640px) {
  .ss-value-grid, .ss-industry-grid, .ss-metric-grid, .ss-deploy-grid, .ss-footer-top {
    grid-template-columns: 1fr;
  }
  .ss-logo small { display: none; }
  .ss-hero-stats { max-width: none; }
  .ss-tab-nav { display: flex; overflow-x: auto; flex-wrap: nowrap; max-width: 100%; }
  .ss-tab-btn { flex: 0 0 auto; }
}