/* ==========================================================================
   DoctorX 官网 · 页面级组件样式
   ========================================================================== */

/* ============================== 首屏 Hero =============================== */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 92px) 0 40px;
  overflow: hidden;
  isolation: isolate;
}

/* 背景光斑 */
.hero__glow {
  position: absolute;
  z-index: -1;
  pointer-events: none;
}
.hero__glow--a {
  top: -220px; left: 46%;
  width: 780px; height: 780px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46,144,247,.30), transparent 62%);
  filter: blur(24px);
}
.hero__glow--b {
  top: 120px; left: -180px;
  width: 560px; height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34,211,238,.16), transparent 65%);
  filter: blur(30px);
}

/* 细密点阵 */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(rgba(46,144,247,.14) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(ellipse 70% 55% at 50% 25%, #000 10%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 55% at 50% 25%, #000 10%, transparent 75%);
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.06fr 1fr;
  gap: 56px;
  align-items: center;
}

.hero h1 {
  margin: 22px 0 22px;
  font-size: clamp(34px, 4.6vw, 58px);
  letter-spacing: -.028em;
}

.hero__sub {
  font-size: clamp(15px, 1.55vw, 17.5px);
  color: var(--text-dim);
  line-height: 1.82;
  max-width: 540px;
}

.hero__actions {
  display: flex;
  gap: 13px;
  margin-top: 34px;
  flex-wrap: wrap;
}

.hero__meta {
  display: flex;
  gap: 26px;
  margin-top: 34px;
  flex-wrap: wrap;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.hero__meta div { min-width: 96px; }
.hero__meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-bottom: 4px;
}
.hero__meta dd {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

/* --------------------- 客户端界面仿真（Hero 右侧） --------------------- */
.appwin {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: 15px;
  background: var(--bg-elev-1);
  box-shadow: var(--shadow-lg), 0 0 90px -40px rgba(46,144,247,.5);
  overflow: hidden;
  animation: float-slow 7s ease-in-out infinite;
}

.appwin__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  background: rgba(16,27,46,.96);
  border-bottom: 1px solid var(--line);
}
.appwin__dots { display: flex; gap: 6px; }
.appwin__dots i {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: #2A3D5C;
}
.appwin__dots i:first-child { background: #EF4444; opacity: .7; }
.appwin__dots i:nth-child(2) { background: #F0B429; opacity: .7; }
.appwin__dots i:nth-child(3) { background: #22C55E; opacity: .7; }
.appwin__title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-mute);
  margin-left: 6px;
}
.appwin__status {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: #4ADE80;
}
.appwin__status i {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #22C55E;
  box-shadow: 0 0 8px #22C55E;
}

.appwin__body {
  display: grid;
  grid-template-columns: 118px 1fr;
  min-height: 296px;
}

.appwin__nav {
  border-right: 1px solid var(--line);
  background: rgba(8,13,23,.66);
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.appwin__nav span {
  display: block;
  padding: 8px 11px;
  border-radius: 8px;
  font-size: 12px;
  color: var(--text-mute);
}
.appwin__nav span.on {
  background: rgba(46,144,247,.16);
  color: #CFE6FF;
  box-shadow: inset 0 0 0 1px rgba(46,144,247,.28);
}

.appwin__main { padding: 16px; }

.statrow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}
.stat {
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 9px 10px;
  background: rgba(16,27,46,.6);
}
.stat em {
  display: block;
  font-style: normal;
  font-size: 9.5px;
  color: var(--text-mute);
  letter-spacing: .04em;
  margin-bottom: 3px;
}
.stat b {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.02em;
}
.stat--total  b { color: #E9F1FB; }
.stat--live   b { color: #4ADE80; }   /* 现存：绿 */
.stat--del    b { color: #FB7185; }   /* 已删除恢复：红 */

.bubble-set { display: flex; flex-direction: column; gap: 8px; }
.bub {
  max-width: 78%;
  padding: 8px 12px;
  border-radius: 11px;
  font-size: 12px;
  line-height: 1.55;
  border: 1px solid transparent;
}
.bub--left {
  align-self: flex-start;
  background: rgba(22,35,58,.9);
  border-color: var(--line-strong);
  border-bottom-left-radius: 3px;
  color: #D3E1F5;
}
.bub--right {
  align-self: flex-end;
  background: rgba(37,99,60,.34);
  border-color: rgba(34,197,94,.36);
  border-bottom-right-radius: 3px;
  color: #DCF3E5;
}
.bub--recovered {
  border-color: rgba(239,68,68,.62);
  background: rgba(239,68,68,.13);
  color: #FFD9DE;
  box-shadow: 0 0 0 1px rgba(239,68,68,.16), 0 6px 18px -10px rgba(239,68,68,.8);
}
.bub i {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 9.5px;
  padding: 1px 6px;
  border-radius: 100px;
  margin-bottom: 5px;
  background: rgba(0,0,0,.3);
}
.bub--recovered i { color: #FB7185; }

.progress-line {
  margin-top: 14px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  color: var(--text-mute);
  font-family: var(--font-mono);
}
.bar {
  flex: 1;
  height: 4px;
  border-radius: 100px;
  background: #16233A;
  overflow: hidden;
}
.bar span {
  display: block;
  height: 100%;
  width: 100%;
  border-radius: inherit;
  background: var(--grad-brand);
  transform-origin: left;
  animation: bar-fill 2.6s var(--ease) both;
}
@keyframes bar-fill { from { transform: scaleX(.06); } to { transform: scaleX(1); } }

/* Hero 下方跑马灯式能力条 */
.marquee {
  margin-top: 62px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.marquee__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-mute);
  flex: none;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 100px;
  font-size: 13px;
  color: var(--text-dim);
  background: rgba(16,27,46,.6);
}
.chip i {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand);
}
.chip.is-new i { background: var(--cyan); box-shadow: 0 0 9px var(--cyan); }

/* ============================ 数据统计条 =============================== */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.stats > div {
  background: var(--bg-elev-1);
  padding: 30px 26px;
  position: relative;
}
.stats b {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 700;
  letter-spacing: -.03em;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.1;
}
.stats b sup {
  font-size: .45em;
  margin-left: 3px;
  color: var(--brand-soft);
  -webkit-text-fill-color: var(--brand-soft);
}
.stats span { color: var(--text-dim); font-size: 13.5px; }
.stats small {
  display: block;
  margin-top: 8px;
  font-size: 11.5px;
  color: var(--text-mute);
  font-family: var(--font-mono);
}

/* ============================ 能力（Bento） ============================= */
.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.bento .card--wide { grid-column: span 2; }

.card__kicker {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-bottom: 14px;
  display: block;
}

/* 流程步骤 */
.flow {
  position: relative;
  margin-top: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev-1);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.flow__row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(16,27,46,.7);
  border: 1px solid var(--line);
  font-size: 12.5px;
}
.flow__row b { color: #CFE6FF; font-weight: 600; flex: none; }
.flow__row span { color: var(--text-mute); font-size: 11.5px; font-family: var(--font-mono); margin-left: auto; }
.flow__row.is-active {
  border-color: rgba(46,144,247,.5);
  background: rgba(46,144,247,.12);
}
.flow__row.is-failed {
  border-color: rgba(240,180,41,.4);
  background: rgba(240,180,41,.08);
}
.flow__num {
  width: 22px; height: 22px;
  flex: none;
  border-radius: 6px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  background: rgba(46,144,247,.16);
  color: var(--brand-soft);
}

/* 隔离说明小条 */
.split-note {
  margin-top: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.split-note > div {
  border: 1px dashed var(--line-strong);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 12px;
  color: var(--text-dim);
  background: rgba(16,27,46,.5);
}
.split-note b { display: block; color: var(--text); font-size: 12.5px; margin-bottom: 3px; }

/* ============================ 对比 / 时间线 ============================ */
.compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 22px;
  align-items: stretch;
}
.compare__col {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  background: var(--bg-elev-1);
}
.compare__col--good {
  border-color: rgba(46,144,247,.42);
  background-image: var(--grad-card);
  box-shadow: var(--shadow-glow);
}
.compare__col h3 {
  font-size: 15px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 9px;
}
.compare__col h3 em {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 10.5px;
  padding: 2px 8px;
  border-radius: 100px;
  background: rgba(143,166,196,.1);
  color: var(--text-mute);
  font-weight: 500;
}
.compare__col--good h3 { color: #CFE6FF; }

.compare__list { display: flex; flex-direction: column; }
.compare__list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(30,44,69,.6);
  font-size: 13px;
}
.compare__list li:last-child { border-bottom: 0; }
.compare__list span { color: var(--text-mute); flex: none; }
.compare__list b { font-weight: 600; color: var(--text-dim); text-align: right; }
.compare__col--good .compare__list b { color: #B6D8FF; }

.compare__vs {
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-mute);
  width: 44px;
}
.compare__vs::before {
  content: "VS";
  display: grid;
  place-items: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--bg-elev-2);
}

/* 流程时间线 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; }
.step {
  position: relative;
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev-1);
  transition: border-color .3s, transform .3s var(--ease);
}
.step:hover { border-color: rgba(46,144,247,.42); transform: translateY(-4px); }
.step::before {
  counter-increment: s;
  content: "0" counter(s);
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--brand-soft);
  margin-bottom: 16px;
  letter-spacing: .08em;
}
.step::after {
  content: "";
  position: absolute;
  top: 32px; right: -20px;
  width: 20px; height: 1px;
  background: linear-gradient(90deg, var(--line-strong), transparent);
}
.step:last-child::after { display: none; }
.step h3 { font-size: 15.5px; margin-bottom: 8px; }
.step p { font-size: 13px; color: var(--text-dim); }

/* ============================== 下载区 ================================= */
.dl-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 22px;
  align-items: start;
}

.dl-card {
  border: 1px solid rgba(46,144,247,.34);
  border-radius: var(--radius-lg);
  background: var(--bg-elev-1);
  background-image: var(--grad-card);
  padding: 34px;
  box-shadow: var(--shadow-glow);
}

.dl-card__head {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
}
.dl-card__head img {
  width: 56px; height: 56px;
  border-radius: 15px;
  flex: none;
  box-shadow: 0 12px 30px -12px rgba(46,144,247,.9);
}
.dl-card__head h3 { font-size: 20px; margin-bottom: 5px; }
.dl-card__head p { font-size: 13px; color: var(--text-mute); font-family: var(--font-mono); }

.dl-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.dl-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 26px;
}
.dl-specs div { background: var(--bg-elev-2); padding: 14px 16px; }
.dl-specs em {
  display: block;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-bottom: 5px;
}
.dl-specs b { font-size: 13.5px; font-weight: 600; color: var(--text); }

/* 校验码块 */
.hashbox {
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(8,13,23,.7);
  padding: 14px 16px;
}
.hashbox em {
  display: block;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-bottom: 7px;
}
.hashbox code {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--cyan);
  word-break: break-all;
  line-height: 1.7;
}

/* 侧栏提示卡 */
.side-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev-1);
  padding: 26px;
}
.side-card + .side-card { margin-top: 18px; }
.side-card h4 {
  font-size: 14px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 9px;
}
.side-card h4 svg { width: 16px; height: 16px; color: var(--brand-soft); }

.checklist { display: flex; flex-direction: column; gap: 12px; }
.checklist li {
  display: flex;
  gap: 11px;
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.65;
}
.checklist li::before {
  content: "";
  flex: none;
  width: 16px; height: 16px;
  margin-top: 4px;
  border-radius: 5px;
  background: rgba(34,197,94,.14) center / 10px no-repeat;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2322C55E' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
}

.steplist { display: flex; flex-direction: column; gap: 14px; counter-reset: t; }
.steplist li {
  position: relative;
  padding-left: 38px;
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.7;
}
.steplist li::before {
  counter-increment: t;
  content: counter(t);
  position: absolute;
  left: 0; top: 1px;
  width: 22px; height: 22px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--brand-soft);
  background: rgba(46,144,247,.14);
  border: 1px solid rgba(46,144,247,.26);
}
.steplist li b { color: var(--text); }

/* 下载状态提示 */
.notice {
  display: flex;
  gap: 13px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(240,180,41,.34);
  background: rgba(240,180,41,.07);
  font-size: 13px;
  color: #FFEBC4;
  line-height: 1.7;
}
.notice svg { width: 18px; height: 18px; flex: none; margin-top: 2px; color: var(--warn); }
.notice--info {
  border-color: rgba(34,211,238,.3);
  background: rgba(34,211,238,.06);
  color: #CFF6FD;
}
.notice--info svg { color: var(--cyan); }
.notice code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: rgba(0,0,0,.34);
  padding: 1px 6px;
  border-radius: 5px;
}

/* ============================== 机型矩阵 =============================== */
.guide { display: grid; grid-template-columns: 300px 1fr; gap: 30px; align-items: start; }
.guide__nav { display: flex; flex-direction: column; gap: 6px; position: sticky; top: calc(var(--nav-h) + 24px); }
.guide__nav a {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--text-dim);
  border: 1px solid transparent;
  transition: all .2s;
}
.guide__nav a:hover { background: rgba(255,255,255,.04); color: var(--text); }
.guide__nav a.is-active {
  background: rgba(46,144,247,.12);
  border-color: rgba(46,144,247,.3);
  color: #CFE6FF;
}
.guide__nav small {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-mute);
  margin-top: 3px;
}
.guide__body { display: flex; flex-direction: column; gap: 34px; }

.brand-block {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev-1);
  overflow: hidden;
}
.brand-block__head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(16,27,46,.6);
}
.brand-block__head .mark {
  width: 38px; height: 38px;
  flex: none;
  border-radius: 11px;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  background: var(--grad-brand);
}
.brand-block__head h3 { font-size: 16px; }
.brand-block__head p { font-size: 12px; color: var(--text-mute); font-family: var(--font-mono); }
.brand-block__head .tag { margin-left: auto; }
.brand-block table.data { min-width: 560px; }
.brand-block table.data th:first-child,
.brand-block table.data td:first-child { padding-left: 24px; }
.brand-block table.data th:last-child,
.brand-block table.data td:last-child { padding-right: 24px; }

.notes {
  padding: 18px 24px;
  background: rgba(240,180,41,.05);
  border-top: 1px solid rgba(240,180,41,.22);
  font-size: 12.5px;
  color: #FFDFA8;
  line-height: 1.75;
}
.notes b { color: #FFEBC4; }

/* ============================== 授权阶梯 =============================== */
.ladder { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; align-items: stretch; }
.role {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-elev-1);
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
  transition: border-color .3s, transform .3s var(--ease);
}
.role:hover { transform: translateY(-5px); border-color: rgba(46,144,247,.42); }
.role--mid {
  border-color: rgba(46,144,247,.4);
  box-shadow: var(--shadow-glow);
  background-image: var(--grad-card);
}
.role__badge {
  position: absolute;
  top: -11px; left: 28px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 3px 11px;
  border-radius: 100px;
  background: var(--grad-brand);
  color: #fff;
  font-weight: 700;
}
.role__level {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--text-mute);
  text-transform: uppercase;
}
.role h3 { font-size: 21px; margin: 12px 0 6px; }
.role__sub { font-size: 13px; color: var(--text-dim); min-height: 42px; }
.role__price {
  margin: 20px 0;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.role__price b {
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: #CFE6FF;
}
.role__price span { font-size: 12.5px; color: var(--text-mute); }
.role ul { display: flex; flex-direction: column; gap: 11px; margin-bottom: 26px; }
.role ul li {
  display: flex;
  gap: 10px;
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
}
.role ul li::before {
  content: "";
  flex: none;
  width: 5px; height: 5px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--brand);
}
.role .btn { margin-top: auto; }

/* ============================== FAQ 手风琴 ============================= */
.faq { border-top: 1px solid var(--line); }
.faq details {
  border-bottom: 1px solid var(--line);
  transition: background-color .2s;
}
.faq details[open] { background: rgba(46,144,247,.028); }
.faq summary {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 21px 4px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  transition: color .2s;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--brand-soft); }
.faq summary::after {
  content: "";
  flex: none;
  margin-left: auto;
  width: 20px; height: 20px;
  background: center / 14px no-repeat;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238FA6C4' stroke-width='2.6' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  transition: transform .3s var(--ease);
}
.faq details[open] summary::after { transform: rotate(135deg); }
.faq .faq__a {
  padding: 0 4px 24px;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.85;
  max-width: 860px;
  animation: fade-up .35s var(--ease) both;
}
.faq .faq__a p + p { margin-top: 12px; }
.faq .faq__a code {
  font-family: var(--font-mono);
  font-size: 12.5px;
  background: rgba(46,144,247,.1);
  color: var(--brand-soft);
  padding: 2px 7px;
  border-radius: 5px;
}

/* ============================== 联系方式 =============================== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 24px; align-items: start; }

.contact-card {
  display: flex;
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev-1);
  transition: border-color .28s, transform .28s var(--ease), box-shadow .28s;
}
.contact-card:hover {
  border-color: rgba(46,144,247,.42);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.contact-card__icon {
  width: 46px; height: 46px;
  flex: none;
  border-radius: 13px;
  display: grid;
  place-items: center;
  background: rgba(46,144,247,.12);
  border: 1px solid rgba(46,144,247,.26);
  color: var(--brand-soft);
}
.contact-card__icon svg { width: 21px; height: 21px; }
.contact-card h3 { font-size: 15px; margin-bottom: 5px; }
.contact-card p { font-size: 13px; color: var(--text-dim); }
.contact-card b {
  display: block;
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: #CFE6FF;
  word-break: break-all;
}
.contact-card--green .contact-card__icon {
  background: rgba(34,197,94,.12);
  border-color: rgba(34,197,94,.28);
  color: #4ADE80;
}

/* 二维码位 */
.qr-slot {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.qr {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev-1);
  padding: 20px;
  text-align: center;
}
.qr__box {
  width: 100%;
  aspect-ratio: 1;
  max-width: 168px;
  margin: 0 auto 14px;
  border-radius: 12px;
  border: 1px dashed var(--line-strong);
  background:
    repeating-conic-gradient(from 45deg, rgba(46,144,247,.05) 0% 25%, transparent 0% 50%)
    0 0 / 18px 18px,
    rgba(8,13,23,.6);
  display: grid;
  place-items: center;
  color: var(--text-mute);
  font-size: 12px;
  text-align: center;
  padding: 12px;
  line-height: 1.6;
}
.qr h4 { font-size: 14px; margin-bottom: 4px; }
.qr p { font-size: 12px; color: var(--text-mute); }

/* 表单 */
.form { display: flex; flex-direction: column; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-dim);
}
.field label span { color: var(--danger); margin-left: 3px; }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: rgba(8,13,23,.7);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  transition: border-color .2s, box-shadow .2s;
}
.field textarea { resize: vertical; min-height: 118px; line-height: 1.7; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(46,144,247,.16);
}
.field input::placeholder,
.field textarea::placeholder { color: var(--text-faint); }
.field select option { background: #101B2E; }
.field__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ============================== 法律 / 长文 ============================= */
.prose { max-width: 820px; }
.prose h2 {
  font-size: 20px;
  margin: 44px 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 15.5px; margin: 26px 0 10px; color: #CFE6FF; }
.prose p { color: var(--text-dim); margin: 12px 0; font-size: 14px; line-height: 1.9; }
.prose ul { margin: 14px 0; display: flex; flex-direction: column; gap: 10px; }
.prose ul li {
  position: relative;
  padding-left: 20px;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.8;
}
.prose ul li::before {
  content: "";
  position: absolute;
  left: 2px; top: 10px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--brand);
}
.prose strong { color: var(--text); }
.prose .callout {
  margin: 22px 0;
  padding: 18px 20px;
  border-left: 3px solid var(--brand);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(46,144,247,.07);
  color: #CFE6FF;
  font-size: 13.5px;
  line-height: 1.85;
}

/* ============================== 其他工具类 ============================= */
.mt-0  { margin-top: 0; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-40 { margin-top: 40px; }
.mt-56 { margin-top: 56px; }
.center-text { text-align: center; }
.muted { color: var(--text-mute); }
.small { font-size: 12.5px; }
.nowrap { white-space: nowrap; }

.cta-band {
  position: relative;
  border: 1px solid rgba(46,144,247,.34);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(620px 300px at 82% 10%, rgba(46,144,247,.2), transparent 68%),
    var(--bg-elev-1);
  padding: 58px 48px;
  text-align: center;
  overflow: hidden;
}
.cta-band h2 { font-size: clamp(24px, 3.2vw, 36px); margin-bottom: 16px; }
.cta-band p { color: var(--text-dim); max-width: 560px; margin: 0 auto; }
.cta-band .hero__actions { justify-content: center; }

/* ============================== 响应式补齐 ============================= */
@media (max-width: 1080px) {
  .hero__inner { grid-template-columns: 1fr; gap: 48px; }
  .hero { padding-top: calc(var(--nav-h) + 62px); }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .bento .card--wide { grid-column: span 2; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step::after { display: none; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .dl-grid { grid-template-columns: 1fr; }
  .ladder { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .guide { grid-template-columns: 1fr; }
  .guide__nav { position: static; flex-direction: row; overflow-x: auto; padding-bottom: 6px; }
  .guide__nav a { white-space: nowrap; flex: none; }
}

@media (max-width: 680px) {
  .hero { padding-top: calc(var(--nav-h) + 44px); }
  .hero h1 { font-size: clamp(28px, 8vw, 36px); }
  .hero__actions .btn { width: 100%; }
  .hero__meta { gap: 20px; }
  .appwin__body { grid-template-columns: 1fr; }
  .appwin__nav { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .stats { grid-template-columns: 1fr; }
  .bento { grid-template-columns: 1fr; }
  .bento .card--wide { grid-column: span 1; }
  .steps { grid-template-columns: 1fr; }
  .compare { grid-template-columns: 1fr; }
  .compare__vs { width: 100%; height: 44px; }
  .dl-card { padding: 24px; }
  .dl-specs { grid-template-columns: 1fr; }
  .dl-actions .btn { width: 100%; }
  .qr-slot { grid-template-columns: 1fr; }
  .field__row { grid-template-columns: 1fr; }
  .cta-band { padding: 38px 22px; }
  .split-note { grid-template-columns: 1fr; }
}