/* 静态肌理 · 私有化安全 */
:root {
  --bg: #d8d4cd;
  --sheet: #ebe7e0;
  --panel: #f3f0ea;
  --ink: #1f2420;
  --mute: #5c645e;
  --line: rgba(40, 48, 42, 0.16);
  --seal: #3d5c48;
  --seal-deep: #2a4033;
  --brass: #9a7b4f;
  --steel: #6d7570;
  --shadow: 0 16px 34px rgba(40, 48, 42, 0.12);
  --radius: 6px;
  --font-display: "Bahnschrift", "Segoe UI Variable Display", "Microsoft YaHei UI", sans-serif;
  --font-body: "Segoe UI", "Microsoft YaHei UI", sans-serif;
  --font-stamp: "Cascadia Mono", "Consolas", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  background-color: var(--bg);
  background-image:
    radial-gradient(rgba(40, 48, 42, 0.035) 0.7px, transparent 0.7px),
    linear-gradient(180deg, #ddd9d1 0%, var(--bg) 40%, #d2cec6 100%);
  background-size: 3px 3px, auto;
  line-height: 1.65;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.2; margin: 0 0 0.55rem; letter-spacing: 0.01em; }
p { margin: 0 0 0.85rem; }
.wrap { width: min(1100px, calc(100% - 2rem)); margin-inline: auto; }

.vault { position: relative; }
.vault::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(40, 48, 42, 0.015) 2px,
      rgba(40, 48, 42, 0.015) 3px
    );
}
.vault > * { position: relative; z-index: 1; }

/* sealed top bar */
.sealbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem 0 0.55rem;
  border-bottom: 1px solid var(--line);
}
.mark {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}
.mark .stamp {
  width: 2.35rem;
  height: 2.35rem;
  border: 2px solid var(--seal);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-stamp);
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--seal);
  letter-spacing: 0.04em;
  transform: rotate(-8deg);
  background: rgba(61, 92, 72, 0.06);
}
.mark b { display: block; font-size: 1.12rem; }
.mark small {
  display: block;
  font-family: var(--font-stamp);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--mute);
  text-transform: uppercase;
}
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.05rem;
  font-size: 0.9rem;
  color: var(--mute);
}
.nav a:hover, .nav a.on { color: var(--seal-deep); }
.access {
  display: inline-flex;
  align-items: center;
  padding: 0.52rem 0.95rem;
  border: 1px solid var(--seal);
  background: var(--seal);
  color: #f4f1ea;
  font-weight: 700;
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
  box-shadow: inset 0 -2px 0 rgba(0,0,0,0.12);
  transition: background 0.18s ease;
}
.access:hover { background: var(--seal-deep); }

/* hero — classified dossier */
.dossier {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 1.35rem;
  align-items: center;
  padding: 1.55rem 0 2.1rem;
}
.brief {
  background:
    linear-gradient(180deg, rgba(243,240,234,0.96), rgba(235,231,224,0.92));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 1.45rem 1.4rem 1.3rem;
  position: relative;
}
.brief::after {
  content: "PRIVATE";
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-family: var(--font-stamp);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: rgba(61, 92, 72, 0.55);
  border: 1.5px solid rgba(61, 92, 72, 0.45);
  padding: 0.25rem 0.45rem;
  transform: rotate(6deg);
}
.classify {
  display: inline-block;
  font-family: var(--font-stamp);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--brass);
  margin-bottom: 0.7rem;
  text-transform: uppercase;
}
.brief h1 {
  font-size: clamp(1.85rem, 3.5vw, 2.6rem);
  margin-bottom: 0.7rem;
  max-width: 14ch;
}
.lead { color: var(--mute); font-size: 1.01rem; max-width: 36rem; }
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.1rem 0 0.95rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 9.5rem;
  padding: 0.7rem 1.1rem;
  font-weight: 700;
  font-size: 0.93rem;
  white-space: nowrap;
  word-break: keep-all;
  writing-mode: horizontal-tb;
  border: 1px solid transparent;
  transition: transform 0.16s ease, background 0.16s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-seal {
  background: var(--seal);
  color: #f4f1ea;
  border-color: var(--seal-deep);
}
.btn-sheet {
  background: var(--panel);
  color: var(--seal-deep);
  border-color: rgba(61, 92, 72, 0.35);
}
.reqs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}
.reqs p {
  margin: 0;
  padding: 0.55rem 0.65rem;
  background: rgba(255,255,255,0.45);
  border: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--mute);
}
.reqs b {
  display: block;
  font-family: var(--font-stamp);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  margin-bottom: 0.12rem;
}
.media {
  align-self: center;
  border: 1px solid var(--line);
  background: var(--sheet);
  box-shadow: var(--shadow);
}
.media img {
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
}

.sec { padding: 2.25rem 0; }
.head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: end;
  margin-bottom: 1.15rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}
.head .label {
  font-family: var(--font-stamp);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--brass);
  writing-mode: horizontal-tb;
  text-transform: uppercase;
  border: 1px solid rgba(154, 123, 79, 0.4);
  padding: 0.35rem 0.5rem;
}
.head h2 { font-size: clamp(1.4rem, 2.3vw, 1.85rem); margin: 0 0 0.25rem; }
.head p { margin: 0; color: var(--mute); font-size: 0.94rem; max-width: 40rem; }

/* lockboxes — download */
.lockgrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}
.lockbox {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1.15rem 1.05rem 1rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem 1rem;
  align-items: start;
  box-shadow: 0 8px 18px rgba(40, 48, 42, 0.06);
}
.lockbox .key {
  width: 3rem;
  height: 3rem;
  border: 1.5px solid var(--seal);
  display: grid;
  place-items: center;
  font-family: var(--font-stamp);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--seal);
  background: rgba(61, 92, 72, 0.06);
}
.lockbox .os {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
  grid-column: 2;
}
.lockbox .meta {
  margin: 0;
  font-size: 0.86rem;
  color: var(--mute);
  grid-column: 2;
}
.lockbox .meta b { color: var(--ink); }
.lockbox .btn {
  grid-column: 1 / -1;
  margin-top: 0.35rem;
  width: 100%;
}

/* capability matrix */
.matrix {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.7rem;
}
.cell {
  background: var(--sheet);
  border: 1px solid var(--line);
  padding: 1rem 0.85rem;
}
.cell .ico {
  width: 2.2rem;
  height: 2.2rem;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--seal-deep);
  background: var(--panel);
  margin-bottom: 0.65rem;
}
.cell h3 { font-size: 0.98rem; margin-bottom: 0.3rem; }
.cell p { margin: 0; font-size: 0.86rem; color: var(--mute); }

/* solution dossier */
.casefile {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 1.2rem;
  align-items: center;
}
.memo {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1.35rem 1.25rem;
  box-shadow: var(--shadow);
}
.memo h2 { font-size: clamp(1.35rem, 2.2vw, 1.75rem); }
.memo .bullets {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  gap: 0.5rem;
}
.memo .bullets li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--mute);
  font-size: 0.93rem;
}
.memo .bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.4rem;
  height: 0.4rem;
  background: var(--seal);
}
.gallery { display: grid; gap: 0.7rem; }
.gallery .shot {
  border: 1px solid var(--line);
  background: var(--sheet);
  box-shadow: 0 8px 18px rgba(40, 48, 42, 0.07);
}
.gallery .pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}

/* trust accreditation */
.acred {
  text-align: center;
  background: linear-gradient(180deg, var(--panel), var(--sheet));
  border: 1px solid var(--line);
  padding: 1.7rem 1.1rem 1.3rem;
  box-shadow: var(--shadow);
}
.acred .big {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  margin-bottom: 0.35rem;
}
.acred .big em {
  font-style: normal;
  color: var(--seal-deep);
  font-size: 1.2em;
}
.acred .sub { color: var(--mute); margin-bottom: 1rem; }
.brands {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.05rem;
}
.brands span {
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.45);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--mute);
  font-family: var(--font-stamp);
  letter-spacing: 0.02em;
}
.acred .shot {
  max-width: 700px;
  margin: 0 auto;
  border: 1px solid var(--line);
}

/* news + help */
.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 0.9rem;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1.1rem 1.1rem 0.85rem;
}
.panel-h {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--line);
}
.panel-h a { color: var(--seal); font-size: 0.86rem; font-weight: 700; }
.log {
  display: grid;
  grid-template-columns: 3.2rem 1fr;
  gap: 0.65rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
}
.log:last-child { border-bottom: 0; }
.log time {
  font-family: var(--font-stamp);
  font-size: 0.72rem;
  color: var(--brass);
  padding-top: 0.15rem;
}
.log h3 { font-size: 0.96rem; margin-bottom: 0.2rem; }
.log p { margin: 0; font-size: 0.85rem; color: var(--mute); }

.faq details {
  border-bottom: 1px solid var(--line);
  padding: 0.5rem 0;
}
.faq details:last-child { border-bottom: 0; }
.faq summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  float: right;
  color: var(--seal);
}
.faq details[open] summary::after { content: "–"; }
.faq p { color: var(--mute); font-size: 0.9rem; margin: 0.4rem 0 0.5rem; }
.faq a { color: var(--seal-deep); text-decoration: underline; text-underline-offset: 2px; }

/* CTA */
.clearance {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.15rem;
  align-items: center;
  background: linear-gradient(145deg, #243028, #2f4036 55%, #3d5c48);
  color: #eef2ee;
  padding: 1.45rem 1.35rem;
  margin: 0.4rem 0 1.9rem;
  border: 1px solid rgba(0,0,0,0.2);
  box-shadow: var(--shadow);
}
.clearance h2 { color: #fff; font-size: clamp(1.3rem, 2.2vw, 1.7rem); }
.clearance .lead { color: rgba(238,242,238,0.82); }
.gains {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 0;
  display: grid;
  gap: 0.35rem;
}
.gains li {
  padding-left: 1rem;
  position: relative;
  font-size: 0.93rem;
  color: rgba(238,242,238,0.9);
}
.gains li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.35rem;
  height: 0.35rem;
  background: var(--brass);
}
.clearance .btn-seal {
  background: #f3f0ea;
  color: var(--seal-deep);
  border-color: #f3f0ea;
}
.clearance .btn-sheet {
  background: transparent;
  color: #eef2ee;
  border-color: rgba(238,242,238,0.35);
}
.clearance .shot {
  border: 1px solid rgba(238,242,238,0.2);
  background: rgba(0,0,0,0.15);
}

.page-hero {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 1.25rem;
  align-items: center;
  padding: 1.3rem 0 1.7rem;
}

.foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 1.1rem 0 1.9rem;
  color: var(--mute);
  font-size: 0.86rem;
  border-top: 1px solid var(--line);
}
.foot nav { display: flex; gap: 1rem; }
.foot a:hover { color: var(--seal-deep); }

@media (max-width: 960px) {
  .dossier, .casefile, .split, .clearance, .page-hero { grid-template-columns: 1fr; }
  .matrix { grid-template-columns: 1fr 1fr; }
  .nav { display: none; }
  .brief::after { display: none; }
}
@media (max-width: 560px) {
  .lockgrid, .matrix, .reqs, .gallery .pair, .head { grid-template-columns: 1fr; }
  .actions { flex-direction: column; }
  .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* Hero image hard rules — end of file */
.dossier,
.page-hero {
  align-items: center;
}
.dossier .media,
.page-hero .media,
.clearance .shot,
.gallery .shot,
.acred .shot {
  align-self: center;
  height: auto;
  padding: 0;
  margin-top: 0;
  margin-bottom: 0;
  overflow: hidden;
  transform: none;
}
.dossier .media img,
.page-hero .media img,
.clearance .shot img,
.gallery .shot img,
.acred .shot img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
  min-height: 0;
  max-height: none;
  margin: 0;
  padding: 0;
  clip-path: none;
  transform: none;
}