@font-face {
  font-family: "Shark Gilroy";
  src: url("/assets/gilroy-light.woff") format("woff");
  font-weight: 300 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Shark Gilroy";
  src: url("/assets/gilroy-bold.woff") format("woff");
  font-weight: 700 900;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;
  --ink: #101114;
  --muted: #5f6269;
  --blue: #1457ff;
  --blue-deep: #063ccb;
  --yellow: #f7c844;
  --paper: #f4f1e9;
  --white: #fffefa;
  --line: rgba(16, 17, 20, .13);
  --display: "Shark Gilroy", "PingFang SC", "Microsoft YaHei", sans-serif;
  --body: "Shark Gilroy", "PingFang SC", "Microsoft YaHei", sans-serif;
  --shadow: 0 22px 70px rgba(18, 26, 47, .09);
}



* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; touch-action: manipulation; }
.shell p a, .source a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  min-width: 44px;
  max-width: 100%;
  padding-block: 8px;
  overflow-wrap: anywhere;
  vertical-align: middle;
}
main [id], .shell h2, .shell h3 { scroll-margin-top: 140px; }
.skip-link {
  position: fixed;
  display: inline-flex;
  top: 12px;
  left: 12px;
  z-index: 20;
  padding: 12px 17px;
  min-height: 44px;
  align-items: center;
  border-radius: 999px;
  color: #fff;
  background: var(--ink);
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform .2s ease;
}
.skip-link:focus { transform: translateY(0); }
a:focus-visible,
summary:focus-visible { outline: 3px solid var(--yellow); outline-offset: 4px; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  min-height: 72px;
  padding: 0 clamp(22px, 5vw, 78px);
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(16, 17, 20, .09);
  background: rgba(255, 254, 250, .9);
  box-shadow: 0 8px 28px rgba(18, 26, 47, .035);
  backdrop-filter: blur(16px);
}
.topbar a { text-decoration: none; }
.brand {
  display: inline-flex;
  min-height: 44px;
  padding: 0 16px;
  align-items: center;
  border: 1px solid rgba(20, 87, 255, .18);
  border-radius: 999px;
  color: var(--blue);
  background: rgba(255, 255, 255, .7);
  font: 800 20px/1 var(--display);
  letter-spacing: -.035em;
}
.topbar nav { display: flex; gap: clamp(18px, 2.4vw, 34px); align-items: center; }
.topbar nav a {
  position: relative;
  min-width: 44px;
  text-align: center;
  min-height: 44px;
  padding: 0 1px;
  color: #42444a;
  font-size: 14px;
  font-weight: 700;
  line-height: 44px;
}
.topbar nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 7px;
  left: 0;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .2s ease;
}
.topbar nav a:hover::after { transform: scaleX(1); transform-origin: left; }

.hero {
  position: relative;
  min-height: min(680px, 72vh);
  padding: clamp(94px, 11vw, 170px) max(22px, calc((100vw - 1180px) / 2)) clamp(76px, 8vw, 120px);
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 82% 20%, rgba(247, 200, 68, .26), transparent 22%),
    radial-gradient(circle at 12% 92%, rgba(255, 255, 255, .12), transparent 25%),
    linear-gradient(135deg, var(--blue) 0%, var(--blue-deep) 76%);
}
.hero::before {
  content: "Sharkomode";
  position: absolute;
  right: -2vw;
  bottom: -1vw;
  color: rgba(255, 255, 255, .055);
  font: 800 clamp(82px, 14vw, 230px)/.74 var(--display);
  letter-spacing: -.065em;
  white-space: nowrap;
}
.hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: clamp(22px, 7vw, 110px);
  width: 1px;
  height: 100%;
  background: rgba(255, 255, 255, .16);
}
.eyebrow {
  position: relative;
  z-index: 1;
  display: inline-flex;
  margin-bottom: 28px;
  padding: 9px 13px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 999px;
  color: var(--yellow);
  background: rgba(0, 0, 0, .08);
  font: 800 11px/1 var(--display);
  letter-spacing: .2em;
  text-transform: uppercase;
}
h1 {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: 0 0 30px;
  font: 800 clamp(48px, 5.6vw, 88px)/1.16 var(--display);
  letter-spacing: -.025em;
  text-wrap: balance;
}
.lead {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0;
  color: rgba(255, 255, 255, .82);
  font-size: clamp(18px, 1.75vw, 26px);
  font-weight: 400;
  line-height: 1.65;
}

.shell {
  width: min(1120px, calc(100% - 44px));
  margin: 0 auto;
  padding: clamp(72px, 9vw, 132px) 0 clamp(94px, 11vw, 160px);
}
.answer {
  position: relative;
  margin: 0;
  padding: clamp(30px, 4vw, 54px) clamp(28px, 4.8vw, 64px);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 30px;
  color: rgba(255, 255, 255, .88);
  background: linear-gradient(135deg, #101114 0%, #18213a 100%);
  box-shadow: var(--shadow);
  font-size: clamp(18px, 1.65vw, 23px);
  line-height: 1.75;
}
.answer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 7px;
  height: 100%;
  background: var(--yellow);
}
.answer strong { color: #fff; font-weight: 800; }
.answer a { color: var(--yellow); text-underline-offset: 4px; }
h2 {
  position: relative;
  margin: clamp(82px, 10vw, 138px) 0 30px;
  padding-top: 22px;
  font: 800 clamp(32px, 3.8vw, 54px)/1.22 var(--display);
  letter-spacing: -.02em;
  text-wrap: balance;
}
h2::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 64px;
  height: 4px;
  border-radius: 99px;
  background: var(--blue);
}
h3 { margin: 0 0 12px; font: 800 22px/1.4 var(--display); letter-spacing: -.01em; }
p, li, td, th { font-size: 17px; line-height: 1.78; }
.shell > p:not(.answer):not(.source) { max-width: 840px; color: var(--muted); }

.steps,
.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  list-style: none;
}
.steps li,
.cards article {
  position: relative;
  min-height: 210px;
  padding: 30px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 254, 250, .88);
  box-shadow: 0 12px 34px rgba(18, 26, 47, .045);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.steps li:hover,
.cards article:hover {
  border-color: rgba(20, 87, 255, .36);
  box-shadow: 0 20px 48px rgba(20, 87, 255, .08);
  transform: translateY(-4px);
}
.steps li p,
.cards article p { margin: 0; color: var(--muted); }
.step-no {
  display: inline-flex;
  min-width: 52px;
  min-height: 34px;
  margin-bottom: 30px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(20, 87, 255, .2);
  border-radius: 999px;
  color: var(--blue);
  background: rgba(20, 87, 255, .06);
  font: 800 13px/1 var(--display);
  letter-spacing: .06em;
}

table {
  width: 100%;
  overflow: hidden;
  border-collapse: separate;
  border: 1px solid var(--line);
  border-spacing: 0;
  border-radius: 22px;
  background: var(--white);
  box-shadow: 0 14px 40px rgba(18, 26, 47, .05);
}
th,
td { padding: 20px 22px; border: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
tr > :last-child { border-right: 0; }
tbody tr:last-child > * { border-bottom: 0; }
th { color: #fff; background: var(--blue); font-weight: 800; }
td { color: #4e5159; }
tbody tr:nth-child(even) td { background: rgba(20, 87, 255, .025); }
.source { margin: 16px 4px 0; color: #61636a; font-size: 13px; line-height: 1.6; }
.source a { color: var(--blue-deep); font-weight: 700; text-underline-offset: 3px; }

.faq { display: grid; gap: 10px; }
.faq details {
  position: relative;
  padding: 0 26px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 254, 250, .9);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.faq details[open] { border-color: rgba(20, 87, 255, .34); box-shadow: 0 16px 38px rgba(20, 87, 255, .07); }
.faq summary {
  position: relative;
  min-height: 76px;
  padding: 24px 58px 22px 0;
  cursor: pointer;
  font: 800 19px/1.35 var(--display);
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  top: 18px;
  right: 0;
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--blue);
  font: 500 24px/1 var(--display);
}
.faq details[open] summary::after { content: "−"; color: var(--ink); background: var(--yellow); }
.faq details p { max-width: 820px; margin: 0 0 25px; color: var(--muted); }

.links {
  counter-reset: related;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: clamp(86px, 10vw, 136px);
}
.links a {
  counter-increment: related;
  position: relative;
  display: flex;
  min-height: 146px;
  padding: 54px 24px 24px;
  align-items: flex-end;
  overflow: hidden;
  border-radius: 20px;
  color: #fff;
  background: var(--blue);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.4;
  text-decoration: none;
  transition: transform .22s ease, box-shadow .22s ease;
}
.links a:nth-child(2) { background: var(--ink); }
.links a:nth-child(3) { color: var(--ink); background: var(--yellow); }
.links a::before {
  content: "0" counter(related);
  position: absolute;
  top: 20px;
  left: 24px;
  font: 800 12px/1 var(--display);
  letter-spacing: .12em;
  opacity: .7;
}
.links a:hover { box-shadow: 0 18px 40px rgba(18, 26, 47, .13); transform: translateY(-4px); }
.phone-cta {
  display: inline-flex;
  min-height: 50px;
  margin-top: 20px;
  padding: 0 24px;
  align-items: center;
  border-radius: 999px;
  color: #fff;
  background: var(--blue);
  box-shadow: 0 12px 26px rgba(20, 87, 255, .2);
  font-size: 17px;
  font-weight: 800;
  text-decoration: none;
}
footer {
  padding: 54px 22px;
  color: rgba(255, 255, 255, .65);
  background: var(--ink);
  font-size: 13px;
  letter-spacing: .03em;
  text-align: center;
}

@media (max-width: 760px) {
  .topbar { display: block; min-height: auto; padding: 10px 16px 8px; }
  .brand { min-height: 44px; padding: 0 13px; font-size: 17px; }
  .topbar nav {
    width: 100%;
    margin-top: 7px;
    padding-top: 3px;
    overflow-x: auto;
    gap: 18px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .topbar nav::-webkit-scrollbar { display: none; }
  .topbar nav a { flex: 0 0 auto; min-height: 44px; padding: 0 10px; font-size: 13px; line-height: 44px; white-space: nowrap; }
  .hero { min-height: 0; padding: 64px 22px 72px; }
  .hero::before { right: -8px; bottom: 4px; font-size: 25vw; }
  .hero::after { right: 22px; }
  .eyebrow { margin-bottom: 24px; font-size: 10px; letter-spacing: .15em; }
  h1 { font-size: clamp(36px, 9.8vw, 56px); line-height: 1.2; }
  .lead { font-size: 18px; line-height: 1.62; }
  .shell { width: min(100% - 32px, 1120px); padding-top: 62px; }
  .answer { padding: 30px 25px 30px 30px; border-radius: 22px; font-size: 17px; }
  h2 { margin-top: 78px; padding-top: 18px; font-size: clamp(34px, 10.2vw, 48px); }
  h3 { font-size: 20px; }
  p, li, td, th { font-size: 16px; line-height: 1.72; }
  .steps,
  .cards,
  .links { grid-template-columns: 1fr; }
  .steps li,
  .cards article { min-height: 0; padding: 25px; }
  .step-no { margin-bottom: 24px; }
  table { display: block; overflow-x: auto; border-radius: 16px; -webkit-overflow-scrolling: touch; }
  th, td { min-width: 140px; padding: 15px; font-size: 14px; }
  .faq details { padding: 0 19px; }
  .faq summary { min-height: 72px; padding-right: 50px; font-size: 17px; }
  .faq summary::after { width: 36px; height: 36px; }
  .links { margin-top: 82px; }
  .links a { min-height: 122px; }
}

@media (max-width: 390px) {
  .hero { min-height: 0; }
  .hero h1 { font-size: clamp(34px, 9.8vw, 39px); }
  .lead { font-size: 16px; }
  .shell { width: calc(100% - 28px); }
}

/* Shared detail rhythm: reading surfaces stay still; links carry feedback. */
::selection { color: #fff; background: var(--blue-deep); }
.topbar nav a[aria-current="page"] { color: var(--blue-deep); }
.topbar nav a[aria-current="page"]::after { transform: scaleX(1); }
.shell p, .shell li { text-wrap: pretty; }
.steps, .cards { gap: 20px; }
.steps li, .cards article { box-shadow: 0 4px 18px rgba(18,26,47,.035); }
.steps li:hover, .cards article:hover { transform: none; border-color: var(--line); box-shadow: 0 4px 18px rgba(18,26,47,.035); }
.lead { max-width: 46em; }
.faq summary { line-height: 1.55; }
.faq summary:hover { color: var(--blue-deep); }
.phone-cta { transition: background .18s ease, box-shadow .18s ease; }
.phone-cta:hover { background: var(--blue-deep); box-shadow: 0 8px 22px rgba(20,87,255,.16); }
@media (hover: none) {
  .links a:hover { transform: none; box-shadow: none; }
}
@media (max-width: 760px) {
  .steps, .cards { gap: 14px; }
  .shell { padding-bottom: 88px; }
  .links { margin-top: 64px; }
  .links a { min-height: 110px; }
  .topbar { background: #fffefa; backdrop-filter: none; }
}

/* Unified typography across every guide and service page. */
:root {
  --ui: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --latin: "Shark Gilroy", Gilroy, Arial, "Helvetica Neue", sans-serif;
  --display: var(--ui);
  --body: var(--ui);
}

body { font-family: var(--ui); font-kerning: normal; }
h1, h2, h3, .faq summary { font-family: var(--ui); font-weight: 700; }
h1 { line-height: 1.18; letter-spacing: -.015em; }
h2 { line-height: 1.22; letter-spacing: -.012em; }
h3 { line-height: 1.42; letter-spacing: 0; }
.brand,
.eyebrow,
.step-no,
.links a::before { font-family: var(--latin); }
.topbar nav a { font-family: var(--ui); font-weight: 600; }
p, li, td, th { letter-spacing: 0; }

@media (max-width: 760px) {
  .topbar nav a { font-size: 14px; }
  h1 { font-size: clamp(34px, 9.2vw, 44px); line-height: 1.2; }
  h2 { font-size: clamp(31px, 8.6vw, 40px); line-height: 1.24; }
  h3 { font-size: 20px; line-height: 1.42; }
  .lead { line-height: 1.7; }
  .faq summary { line-height: 1.5; }
}

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

/* Shared editorial system for every informational page. */
body .brand { padding: 0; border: 0; background: transparent; color: #102c45; font-size: 22px; letter-spacing: .06em; }
body .brand::before { content: ""; width: 22px; height: 24px; margin-right: 10px; background: var(--blue); clip-path: polygon(0 100%,65% 0,100% 100%,55% 70%); }
body .topbar { background: #fffefa; backdrop-filter: none; box-shadow: none; }
body .hero { background: #102c45; }
body .hero::after { display: none; }
body .hero h1 { max-width: 960px; font-size: clamp(36px,5vw,72px); line-height: 1.25; }
body .hero .lead { max-width: 760px; font-size: clamp(17px,1.55vw,22px); line-height: 1.85; }
body .shell { width: min(1040px,calc(100% - 44px)); }
body .answer { border-radius: 16px; background: #fffefa; color: #334b5e; border: 1px solid var(--line); box-shadow: none; font-size: clamp(17px,1.4vw,20px); }
body .answer strong { color: #102c45; }
body .answer a { color: var(--blue); }
body .answer::before { background: var(--blue); width: 3px; }
body .steps li, body .cards article { border-radius: 14px; box-shadow: none; }
body .shell h2 { font-size: clamp(28px,3.2vw,44px); margin-top: 76px; }
body .shell p, body .shell li { line-height: 1.9; }
body footer { border-top: 1px solid var(--line); }
@media(max-width:600px) {
  body .hero h1 { font-size: 36px; }
  body .answer { padding: 26px 22px; }
  body .shell h2 { margin-top: 56px; }
}