/* Hệ thiết kế chung cho giới thiệu, hỗ trợ, quyền riêng tư và 404. */
:root {
  --paper: #faf9f4;
  --surface: #fff;
  --ink: #183d37;
  --muted: #586b65;
  --jade: #086b5f;
  --jade-dark: #064e45;
  --mint: #e0f2eb;
  --rose: #f6e6e9;
  --lilac: #eeebf7;
  --butter: #f8efce;
  --line: #d9e2da;
  --radius: 28px;
  --font: -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --display: "Iowan Old Style","Palatino Linotype","Book Antiqua",Georgia,serif;
  --shadow: 0 20px 55px rgb(24 61 55 / 10%);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 112px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 17px/1.65 var(--font);
  -webkit-font-smoothing: antialiased;
}

button,input {
  font: inherit;
}

button,a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
  cursor: pointer;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

svg {
  flex: 0 0 auto;
}

a {
  color: var(--jade);
  text-underline-offset: .22em;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 3px solid #a5562b;
  outline-offset: 5px;
}

::selection {
  color: var(--ink);
  background: #c4e6d6;
}

[hidden] {
  display: none !important;
}

h1,h2,h3,h4,p {
  margin: 0;
}

h1,h2,h3,h4 {
  text-wrap: balance;
}

h1,h2 {
  font-family: var(--display);
  font-weight: 500;
  letter-spacing: -.045em;
  line-height: 1.15;
}

h3 {
  font-size: 1.22rem;
  line-height: 1.35;
  letter-spacing: -.025em;
}

p+p {
  margin-top: 1rem;
}

ul,ol {
  padding-left: 1.35em;
}

li+li {
  margin-top: .55em;
}

section[id],[id$="title"] {
  scroll-margin-top: 110px;
}

.container {
  width: min(1184px,calc(100% - 80px));
  margin-inline: auto;
}

.icon {
  display: inline-block;
  width: 24px;
  height: 24px;
  vertical-align: middle;
}

.icon-tile {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 15px;
  background: var(--mint);
  color: var(--jade);
}

.eyebrow {
  font-size: .71rem;
  font-weight: 750;
  letter-spacing: .16em;
  text-transform: uppercase;
  line-height: 1.5;
}

.eyebrow .icon {
  width: 18px;
  height: 18px;
  margin-right: 8px;
}

.muted,.meta {
  color: var(--muted);
}

.meta,.small {
  font-size: .83rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-size: .74rem;
  font-weight: 650;
  line-height: 1.5;
}

.pill .icon {
  width: 16px;
  height: 16px;
}

.pill-free {
  background: var(--mint);
  border-color: transparent;
  color: var(--jade-dark);
}

.pill-member {
  background: var(--butter);
  border-color: transparent;
  color: #665014;
}

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 100px;
  font-size: .89rem;
  font-weight: 650;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  transition: background .2s,box-shadow .2s;
}

.btn .icon {
  width: 20px;
  height: 20px;
}

.btn-primary {
  color: #fff;
  background: var(--jade);
}

.btn-primary:hover {
  background: var(--jade-dark);
  box-shadow: 0 5px 15px rgb(8 107 95 / 14%);
}

.btn-secondary {
  color: var(--ink);
  border-color: var(--line);
  background: transparent;
}

.btn-secondary:hover {
  background: #fff;
  border-color: #a8bbb1;
}

.btn-light {
  color: var(--jade-dark);
  background: #fff;
}

.btn-light:hover {
  background: var(--mint);
}

.btn-small {
  min-height: 42px;
  padding: 9px 17px;
  font-size: .8rem;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: .87rem;
  font-weight: 650;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
}

.text-link .icon {
  width: 18px;
  height: 18px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  left: 20px;
  top: -100px;
  z-index: 50;
  padding: 12px 20px;
  border-radius: 100px;
  background: #fff;
}

.skip-link:focus {
  top: 16px;
}

/* Điều hướng */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--paper);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 2px 20px rgb(24 61 55 / 3%);
}

.header-inner {
  width: min(1280px,calc(100% - 64px));
  min-height: 88px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  flex-shrink: 0;
}

.brand img {
  border-radius: 12px;
}

.brand>span {
  font-family: var(--display);
  font-size: 1.55rem;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -.035em;
}

.brand small {
  display: block;
  margin-top: 5px;
  font: 600 .56rem/1.4 var(--font);
  letter-spacing: .16em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 27px;
}

.site-nav>a {
  font-size: .83rem;
  font-weight: 550;
  color: var(--muted);
  text-decoration: none;
}

.site-nav>a:hover,.site-nav>a.is-current,.site-nav>a[aria-current] {
  color: var(--jade);
}

.site-nav>.btn {
  color: #fff;
}

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 10px;
  background: none;
  border: 1px solid var(--line);
  border-radius: 50%;
}

/* Trang giới thiệu */
.hero {
  padding: 50px 0 36px;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 38px;
}

.hero-copy {
  padding: 5px 0 35px;
}

.hero .eyebrow {
  color: var(--jade);
  margin-bottom: 22px;
}

.hero h1 {
  font-size: clamp(3.6rem,5.6vw,5.25rem);
  line-height: 1.09;
  letter-spacing: -.055em;
}

.hero h1 em {
  font-weight: 400;
  color: var(--jade);
}

.hero-lead {
  max-width: 510px;
  margin-top: 26px;
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--muted);
}

.hero .button-row {
  margin-top: 30px;
}

.hero-platforms {
  display: flex;
  gap: 9px;
  align-items: center;
  margin-top: 23px;
  font-size: .8rem;
  color: var(--muted);
}

.hero-platforms .icon {
  width: 18px;
  height: 18px;
}

.hero-availability {
  font-size: .73rem;
  color: var(--muted);
  margin-top: 5px;
}

.hero-stage {
  position: relative;
  height: 626px;
  isolation: isolate;
}

.hero-stage::before {
  content: "";
  position: absolute;
  inset: 36px -8px 37px 10px;
  z-index: -1;
  background: var(--mint);
  border-radius: 48% 48% 38% 42%;
}

.hero-stage::after {
  content: "";
  position: absolute;
  width: 98px;
  height: 98px;
  border: 1px solid #b3d5c5;
  border-radius: 50%;
  top: 0;
  right: 28px;
  z-index: -1;
}

.phone {
  max-width: 100%;
  border: 7px solid #fff;
  border-radius: 31px;
  background: #fff;
  box-shadow: var(--shadow),0 0 0 1px rgb(24 61 55 / 10%);
  overflow: hidden;
}

.phone img {
  width: 100%;
  border-radius: 23px;
}

.shot-button {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
}

.shot-button::after {
  content: "↗";
  position: absolute;
  right: 12px;
  bottom: 12px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: var(--jade-dark);
  background: #fff;
  box-shadow: 0 2px 9px rgb(24 61 55 / 12%);
  font-size: 19px;
  transition: transform .2s;
}

.shot-button:hover::after {
  transform: translate(2px,-2px);
}

.hero-phone-calendar {
  position: absolute;
  width: 249px;
  left: 3%;
  top: 25px;
  transform: rotate(-5deg);
  z-index: 2;
}

.hero-phone-family {
  position: absolute;
  width: 239px;
  right: 2%;
  top: 83px;
  transform: rotate(5deg);
}

.hero-note {
  position: absolute;
  bottom: 39px;
  left: 1%;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 22px;
  border-radius: 20px;
  background: var(--butter);
  box-shadow: 0 6px 25px rgb(24 61 55 / 7%);
}

.hero-note .icon {
  color: #826729;
}

.hero-note strong {
  display: block;
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 500;
}

.hero-note span {
  display: block;
  font-size: .69rem;
  color: #6e632d;
}

.hero-image-caption {
  position: absolute;
  bottom: 0;
  right: 8%;
  color: var(--muted);
  font-size: .65rem;
}

.today-line {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: .8rem;
}

.today-label {
  display: flex;
  gap: 8px;
  align-items: center;
  white-space: nowrap;
  color: var(--jade);
}

.today-label .icon {
  width: 19px;
  height: 19px;
}

.today-line [data-today] {
  color: var(--muted);
}

.section {
  padding: 100px 0;
}

.section-head {
  max-width: 700px;
  margin-bottom: 42px;
}

.section-head .eyebrow,.feature-copy>.eyebrow {
  margin-bottom: 16px;
  color: var(--jade);
}

.section-head h2,.feature-copy h2 {
  font-size: clamp(2.35rem,3.75vw,3.45rem);
}

.section-head>p:last-child:not(.eyebrow) {
  margin-top: 20px;
  font-size: 1.06rem;
  color: var(--muted);
}

.section-head-row {
  display: flex;
  justify-content: space-between;
  gap: 36px;
  align-items: flex-end;
}

.section-head-row>p {
  max-width: 400px;
  color: var(--muted);
  margin-bottom: 42px;
}

.chapters {
  padding: 64px 0 0;
}

.chapters .section-head {
  margin-bottom: 28px;
  max-width: 600px;
}

.chapters h2 {
  font-size: 2.1rem;
}

.chapter-grid {
  display: grid;
  grid-template-columns: repeat(5,1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.chapter-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 24px 21px;
  text-decoration: none;
  color: var(--ink);
  background: #fff;
  transition: background .2s;
}

.chapter-card+.chapter-card {
  border-left: 1px solid var(--line);
}

.chapter-card:hover {
  background: var(--mint);
}

.chapter-card .icon {
  width: 26px;
  height: 26px;
  margin-bottom: 20px;
}

.chapter-card strong {
  font-size: .97rem;
}

.chapter-card>span {
  font-size: .74rem;
  line-height: 1.6;
  color: var(--muted);
  margin-top: 6px;
}

.chapter-card .chapter-number {
  display: flex;
  width: 100%;
  justify-content: space-between;
  align-items: flex-start;
  font-size: .65rem;
  color: #65776f;
}

.feature-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.feature-copy>p:not(.eyebrow) {
  margin-top: 23px;
  color: var(--muted);
}

.feature-copy>.pill {
  margin-top: 22px;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 27px 0;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.feature-list .icon {
  width: 19px;
  height: 19px;
  margin-top: 4px;
  color: var(--jade);
}

.feature-list li>div {
  min-width: 0;
}

.feature-list strong {
  font-size: .95rem;
}

.feature-list p {
  margin-top: 3px;
  font-size: .85rem;
  color: var(--muted);
}

.screen-stage {
  grid-template-columns: minmax(0, 1fr);
  min-width: 0;
  position: relative;
  display: grid;
  place-items: center;
  padding: 36px;
  border-radius: 36px;
}

.stage-calendar {
  background: var(--butter);
  min-height: 652px;
}

.screen-stage .phone {
  width: 266px;
}

.stage-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 19px;
  font-size: .75rem;
}

.stage-label .icon {
  width: 18px;
  height: 18px;
}

.feature-strip {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 30px;
  padding-top: 36px;
  margin-top: 45px;
  border-top: 1px solid var(--line);
}

.feature-strip article .icon {
  margin-bottom: 12px;
  color: var(--jade);
}

.feature-strip h3 {
  font-size: 1.08rem;
}

.feature-strip p {
  font-size: .85rem;
  color: var(--muted);
  margin-top: 9px;
}

.family-section {
  background: var(--ink);
  color: #fff;
  padding: 92px 0;
}

.family-section .section-head {
  max-width: 720px;
}

.family-section .eyebrow {
  color: #dbd29a;
}

.family-section .section-head>p:last-child {
  color: #c7dcd1;
}

.family-layout {
  display: grid;
  grid-template-columns: 1fr 1.16fr;
  align-items: center;
  gap: 60px;
}

.workflow {
  list-style: none;
  padding: 0;
  margin: 0;
}

.workflow li {
  display: grid;
  grid-template-columns: 35px 1fr;
  gap: 18px;
  padding: 21px 0;
  border-bottom: 1px solid #42635a;
}

.workflow li:first-child {
  padding-top: 0;
}

.step-number {
  display: grid;
  place-items: center;
  width: 35px;
  height: 35px;
  border-radius: 50%;
  border: 1px solid #729489;
  color: #dcdeb5;
  font-size: .77rem;
}

.workflow h3 {
  font-size: 1.11rem;
}

.workflow p {
  margin-top: 7px;
  color: #c7dcd1;
  font-size: .89rem;
}

.family-copy>p {
  margin-top: 22px;
  color: #c7dcd1;
  font-size: .83rem;
}

.family-copy .pill {
  margin-top: 22px;
  background: #2e574d;
  border-color: #55776a;
  color: #e3efe4;
}

.family-screens {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 28px 0;
}

.family-screens .phone {
  width: calc(50% - 11px);
}

.family-screens .phone:first-child {
  transform: translateY(-24px);
}

.family-screens .phone:last-child {
  transform: translateY(24px);
}

.family-caption {
  color: #c7dcd1;
  font-size: .72rem;
  text-align: center;
  margin-top: 20px;
}

.duo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.story-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}

.story-card-copy {
  padding: 34px 36px 24px;
}

.story-card h3 {
  font-family: var(--display);
  font-size: 1.8rem;
  font-weight: 500;
}

.story-card-copy>p {
  color: var(--muted);
  font-size: .9rem;
  margin-top: 14px;
}

.story-card-copy .pill {
  margin-bottom: 16px;
}

.story-card-copy .meta {
  margin-top: 18px;
}

.story-card-screen {
  display: grid;
  place-items: center;
  padding: 32px;
}

.story-card-screen .phone {
  width: 244px;
}

.stage-rose {
  background: var(--rose);
}

.stage-lilac {
  background: var(--lilac);
}

.finance-section {
  padding-top: 0;
}

.finance-panel {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  align-items: center;
  gap: 56px;
  padding: 52px;
  background: var(--mint);
  border-radius: 36px;
}

.finance-panel .screen-stage {
  background: #c5e3d6;
}

.finance-panel .screen-stage .phone {
  width: 232px;
}

.finance-panel .pill-free {
  background: #fff;
}

.finance-notes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 27px;
}

.finance-notes h3 {
  font-size: .98rem;
}

.finance-notes p {
  color: var(--muted);
  font-size: .83rem;
  margin-top: 7px;
}

.finance-panel .text-link {
  margin-top: 25px;
}

.library-stage {
  min-height: 600px;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 30px 24px;
  background: var(--lilac);
  border-radius: 36px;
}

.library-stage .phone {
  width: calc(50% - 10px);
}

.library-stage .phone:last-child {
  transform: translateY(35px);
}

.topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.topic-tags span {
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 100px;
  font-size: .76rem;
}

.library-source-note {
  padding: 16px 19px;
  background: #fff;
  border-left: 3px solid var(--jade);
  margin-top: 25px;
  font-size: .81rem;
  color: var(--muted);
}

.tools-panel {
  margin-top: 68px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  padding: 32px;
}

.tools-intro {
  display: flex;
  justify-content: space-between;
  gap: 30px;
}

.tools-intro>div {
  max-width: 450px;
}

.tools-intro .eyebrow {
  color: var(--jade);
  margin-bottom: 11px;
}

.tools-intro h3 {
  font-family: var(--display);
  font-size: 1.8rem;
  font-weight: 500;
}

.tools-intro>p {
  max-width: 480px;
  font-size: .85rem;
  color: var(--muted);
}

.tools-list {
  display: grid;
  grid-template-columns: repeat(6,1fr);
  padding: 24px 0;
  margin: 24px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
  gap: 16px;
}

.tools-list li {
  margin: 0;
  font-size: .82rem;
  font-weight: 650;
}

.tools-list span {
  display: block;
  margin-top: 4px;
  font-size: .71rem;
  color: var(--muted);
  font-weight: 400;
}

.disclaimer {
  color: var(--muted);
  font-size: .79rem;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.media-section {
  background: var(--lilac);
}

.media-layout {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 70px;
  align-items: center;
}

.media-layout .section-head {
  margin-bottom: 30px;
}

.media-card {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 17px;
  padding: 26px 0;
  border-top: 1px solid #cfcbdc;
}

.media-card .icon-tile {
  width: 44px;
  height: 44px;
  background: #fff;
}

.media-card p {
  color: var(--muted);
  font-size: .89rem;
  margin-top: 10px;
}

.media-card .small {
  font-size: .78rem;
}

.media-visual {
  display: grid;
  place-items: center;
}

.media-visual .phone {
  width: 268px;
}

.media-visual figcaption {
  color: var(--muted);
  font-size: .72rem;
  text-align: center;
  margin-top: 18px;
}

.ai-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px;
  background: #fff;
}

.ai-card .icon-tile {
  margin-bottom: 21px;
}

.ai-card h3 {
  font-family: var(--display);
  font-size: 1.9rem;
  font-weight: 500;
}

.ai-card .pill {
  margin-top: 14px;
}

.ai-card p {
  color: var(--muted);
  margin-top: 17px;
  font-size: .9rem;
}

.ai-card .meta {
  font-size: .8rem;
}

.ai-section .text-link {
  margin-top: 26px;
}

.privacy-section {
  padding-top: 0;
}

.privacy-panel {
  padding: 48px;
  background: var(--mint);
  border-radius: 36px;
}

.privacy-heading {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.privacy-heading .section-head {
  margin-bottom: 30px;
}

.privacy-heading>div:last-child {
  color: var(--muted);
  font-size: .93rem;
}

.privacy-heading .text-link {
  margin-top: 15px;
}

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: 20px;
  margin-top: 5px;
}

.privacy-card {
  padding: 26px;
  background: rgb(255 255 255 / 75%);
  border-radius: 20px;
}

.privacy-card>.icon {
  color: var(--jade);
  margin-bottom: 13px;
}

.privacy-card h3 {
  font-size: 1.03rem;
}

.privacy-card p {
  font-size: .84rem;
  color: var(--muted);
  margin-top: 9px;
}

.plans-section {
  padding-top: 18px;
}

.plan-card {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  padding: 36px;
}

.plan-card-member {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.plan-card .eyebrow {
  margin-bottom: 15px;
}

.plan-card h3 {
  font-family: var(--display);
  font-size: 2.25rem;
  font-weight: 500;
}

.plan-card>p {
  color: var(--muted);
  font-size: .91rem;
  margin-top: 17px;
}

.plan-card-member>p {
  color: #c7dcd1;
}

.plan-card ul {
  padding: 0;
  list-style: none;
  margin: 25px 0;
}

.plan-card li {
  display: flex;
  gap: 10px;
  font-size: .87rem;
  padding: 6px 0;
  margin: 0;
}

.plan-card li .icon {
  width: 18px;
  height: 18px;
  color: var(--jade);
  margin-top: 4px;
}

.plan-card-member li .icon {
  color: #bbe1cc;
}

.plan-card>.plan-note {
  border-top: 1px solid var(--line);
  padding-top: 18px;
  font-size: .8rem;
}

.plan-card-member>.plan-note {
  border-color: #42635a;
}

.plans-fine {
  color: var(--muted);
  font-size: .8rem;
  margin-top: 24px;
  max-width: 1020px;
}

.gallery-section {
  background: #f1f0e8;
}

.gallery-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 25px;
}

.gallery-heading .section-head {
  margin-bottom: 30px;
}

.platform-tabs {
  display: inline-flex;
  gap: 4px;
  padding: 5px;
  border: 1px solid #c6d4ca;
  background: transparent;
  border-radius: 100px;
  margin-bottom: 32px;
}

.platform-tabs button {
  background: transparent;
  border: 0;
  padding: 11px 23px;
  border-radius: 100px;
  font-size: .82rem;
  min-height: 44px;
}

.platform-tabs [aria-selected="true"] {
  color: #fff;
  background: var(--jade);
}

.gallery-panel+.gallery-panel {
  margin-top: 40px;
}

.gallery-panel h3 {
  font-size: 1.07rem;
  margin-bottom: 7px;
}

.gallery-panel>p {
  color: var(--muted);
  font-size: .84rem;
  margin-bottom: 24px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 24px;
}

.gallery-grid figure {
  margin: 0;
  min-width: 0;
}

.gallery-shot {
  display: grid;
  grid-template-columns: minmax(0,1fr);
  min-width: 0;
  place-items: center;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.gallery-shot .phone {
  width: 219px;
}

.gallery-grid figcaption {
  margin-top: 15px;
  padding-inline: 3px;
}

.gallery-grid figcaption strong {
  font-size: .93rem;
}

.gallery-grid figcaption p {
  margin-top: 3px;
  color: var(--muted);
  font-size: .78rem;
}

.gallery-wide .gallery-shot {
  padding: 16px;
}

.gallery-wide .shot-button img {
  border-radius: 10px;
  border: 1px solid var(--line);
}

.gallery-footnote {
  margin-top: 30px;
  color: var(--muted);
  font-size: .76rem;
  max-width: 930px;
}

.faq-layout {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.faq-layout .section-head {
  position: sticky;
  top: 130px;
  margin-bottom: 0;
}

.faq-layout .text-link {
  margin-top: 24px;
}

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq details:first-child {
  border-top: 1px solid var(--line);
}

.faq summary {
  position: relative;
  padding: 22px 35px 22px 0;
  cursor: pointer;
  font-size: .97rem;
  font-weight: 650;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  position: absolute;
  right: 5px;
  top: 18px;
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--jade);
}

.faq details[open] summary::after {
  content: "−";
}

.faq details>div {
  padding: 0 18px 22px 0;
  font-size: .87rem;
  color: var(--muted);
}

.download-section {
  padding-bottom: 80px;
}

.download-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 52px;
  background: var(--jade-dark);
  border-radius: 36px;
  color: #fff;
}

.download-panel .eyebrow {
  color: #c8d8b0;
  margin-bottom: 17px;
}

.download-panel h2 {
  font-size: clamp(2.1rem,3.3vw,3rem);
}

.download-panel p:not(.eyebrow) {
  margin-top: 20px;
  color: #c7dcd1;
  max-width: 610px;
  font-size: .93rem;
}

.download-panel .btn {
  flex-shrink: 0;
}

/* Phóng lớn ảnh */
.screenshot-dialog {
  width: fit-content;
  max-width: min(1160px,94vw);
  max-height: 94dvh;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 20px 100px rgb(0 0 0 / 25%);
}

.screenshot-dialog::backdrop {
  background: rgb(15 36 31 / 80%);
}

.dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 15px 20px;
}

.dialog-header h2 {
  font: 600 .91rem/1.4 var(--font);
  letter-spacing: 0;
}

.dialog-close {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #fff;
}

.dialog-image {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 0 20px 20px;
  overflow: auto;
}

.dialog-image img {
  width: auto;
  max-width: 100%;
  max-height: calc(90dvh - 95px);
  object-fit: contain;
  border-radius: 10px;
}

/* Hỗ trợ và chính sách */
.document-page {
  padding-bottom: 88px;
}

.document-hero {
  padding: 67px 0 40px;
  max-width: 950px;
}

.document-hero .eyebrow {
  color: var(--jade);
  margin-bottom: 22px;
}

.document-hero h1 {
  font-size: clamp(2.7rem,4.6vw,4.4rem);
}

.document-hero .intro {
  color: var(--muted);
  font-size: 1.05rem;
  margin-top: 24px;
  max-width: 770px;
}

.document-hero .meta {
  margin-top: 16px;
}

.document-hero .button-row {
  margin-top: 25px;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 16px;
  margin: 0 0 42px;
}

.quick-link {
  display: flex;
  flex-direction: column;
  padding: 23px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 20px;
  color: var(--ink);
  text-decoration: none;
}

.quick-link:hover {
  background: var(--mint);
}

.quick-link .icon {
  color: var(--jade);
  margin-bottom: 18px;
}

.quick-link strong {
  font-size: .91rem;
}

.quick-link span {
  font-size: .76rem;
  color: var(--muted);
  margin-top: 6px;
}

.document-grid {
  display: grid;
  grid-template-columns: 255px minmax(0,1fr);
  gap: 68px;
  align-items: start;
}

.document-sidebar {
  position: sticky;
  top: 115px;
}

.page-toc {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-toc>.eyebrow {
  margin-bottom: 9px;
  color: var(--muted);
}

.page-toc a {
  font-size: .8rem;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  border-left: 2px solid var(--line);
  padding: 7px 0 7px 14px;
}

.page-toc a:hover,.page-toc a[aria-current] {
  color: var(--jade);
  border-left-color: var(--jade);
}

.contact-card {
  background: var(--mint);
  border-radius: 20px;
  padding: 23px;
  margin-top: 25px;
}

.contact-card>.icon {
  margin-bottom: 13px;
}

.contact-card p {
  font-size: .79rem;
  margin-top: 10px;
}

.contact-card a {
  overflow-wrap: anywhere;
}

.document-body {
  min-width: 0;
}

.document-section {
  padding: 33px 0;
  border-bottom: 1px solid var(--line);
}

.document-section:first-child {
  padding-top: 5px;
}

.document-section h2 {
  font-size: 1.95rem;
  letter-spacing: -.03em;
  margin-bottom: 22px;
}

.document-section h3 {
  font-size: 1.06rem;
  margin: 30px 0 12px;
}

.document-section p,.document-section li {
  color: var(--muted);
  font-size: .91rem;
  line-height: 1.85;
}

.document-section p+h2 {
  margin-top: 34px;
}

.document-section ol,.document-section ul {
  margin-top: 16px;
}

.document-section li {
  margin-top: 10px;
}

.document-section li strong {
  color: var(--ink);
}

.document-note {
  padding: 20px 23px;
  border-left: 3px solid var(--jade);
  background: #fff;
  margin: 23px 0;
}

.document-note p {
  font-size: .86rem;
}

.privacy-summary {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 22px;
  padding: 29px;
  background: var(--mint);
  border-radius: var(--radius);
  margin-bottom: 45px;
}

.privacy-summary .icon {
  color: var(--jade);
  margin-bottom: 13px;
}

.privacy-summary h2 {
  font: 650 .98rem/1.5 var(--font);
  letter-spacing: -.02em;
}

.privacy-summary p {
  margin-top: 9px;
  color: var(--muted);
  font-size: .82rem;
}

.support-contact {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 30px;
  padding: 29px 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 46px;
  background: #fff;
}

.support-contact h2 {
  font: 650 1.05rem/1.4 var(--font);
  letter-spacing: -.02em;
}

.support-contact p {
  color: var(--muted);
  font-size: .84rem;
  margin-top: 9px;
}

.support-contact .btn {
  max-width: 100%;
  overflow-wrap: anywhere;
}

.error-page {
  padding: 80px 0 110px;
}

.error-panel {
  max-width: 860px;
  margin: auto;
  padding: 50px;
  text-align: center;
  border-radius: 36px;
  background: var(--mint);
}

.error-code {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--jade);
  font-family: var(--display);
  font-size: 6rem;
  line-height: 1;
  margin-bottom: 30px;
}

.error-code .icon {
  width: 70px;
  height: 70px;
}

.error-panel h1 {
  font-size: clamp(2.5rem,4vw,3.6rem);
}

.error-panel>p {
  color: var(--muted);
  max-width: 520px;
  margin: 24px auto;
}

.error-panel .button-row {
  justify-content: center;
}

/* Cuối trang và dữ liệu web cũ */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 46px 0 22px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr .75fr 1fr;
  gap: 36px;
}

.footer-grid>div>p {
  color: var(--muted);
  font-size: .85rem;
  margin-top: 18px;
  max-width: 350px;
}

.footer-grid nav {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.footer-grid nav .eyebrow {
  margin-bottom: 6px;
  color: var(--muted);
}

.footer-grid nav a {
  color: var(--ink);
  font-size: .82rem;
  text-decoration: none;
}

.footer-grid nav a:hover {
  text-decoration: underline;
}

.footer-grid .footer-contact a {
  font-size: .81rem;
  overflow-wrap: anywhere;
}

.footer-grid .footer-contact>.eyebrow {
  margin-top: 0;
  font-size: .71rem;
}

.footer-legal {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 15px;
  border-top: 1px solid var(--line);
  margin-top: 10px;
  padding-top: 22px;
  color: var(--muted);
  font-size: .69rem;
}

.legacy-notice {
  position: relative;
  margin-top: 20px;
  padding: 24px 64px 24px 26px;
  border: 1px solid #d8c8a0;
  background: var(--butter);
  border-radius: 22px;
}

.legacy-notice h2 {
  font: 650 1.08rem/1.4 var(--font);
  letter-spacing: -.02em;
  margin-bottom: 10px;
}

.legacy-notice p {
  font-size: .85rem;
  color: #625d3e;
}

.legacy-notice .button-row {
  margin-top: 18px;
}

.legacy-dismiss {
  position: absolute;
  right: 14px;
  top: 14px;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid #d8c8a0;
  border-radius: 50%;
  background: transparent;
}

@media(min-width:1440px){
  .hero h1 {
    font-size: 5.4rem;
  }
}

@media(max-width:1120px){
  .site-nav {
    gap: 19px;
  }
  .hero-layout {
    gap: 18px;
  }
  .hero-stage {
    height: 580px;
  }
  .hero-phone-calendar {
    width: 223px;
    left: 0;
  }
  .hero-phone-family {
    width: 207px;
    right: 0;
  }
  .hero h1 {
    font-size: 4.1rem;
  }
  .feature-layout {
    gap: 46px;
  }
  .family-layout {
    gap: 40px;
  }
  .chapter-card {
    padding: 22px 15px;
  }
  .finance-panel {
    padding: 36px;
    gap: 36px;
  }
  .privacy-panel {
    padding: 36px;
  }
  .gallery-heading {
    display: block;
  }
  .document-grid {
    grid-template-columns: 220px minmax(0,1fr);
    gap: 42px;
  }
}

.feature-layout > *,
.finance-panel > * {
  min-width: 0;
}

@media(max-width:950px){
  .container,.header-inner {
    width: calc(100% - 48px);
  }
  .header-inner {
    min-height: 80px;
  }
  .has-navigation .nav-toggle {
    display: block;
  }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    align-items: stretch;
    padding: 16px 24px 24px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 20px rgb(24 61 55 / 8%);
  }
  .site-nav.is-open {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }
  .site-nav>a {
    padding: 13px 8px;
    min-height: 48px;
    font-size: 1rem;
  }
  .site-nav>.btn {
    margin-top: 8px;
  }
  .hero {
    padding-top: 38px;
  }
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .hero-copy {
    max-width: 710px;
    padding-bottom: 22px;
  }
  .hero h1 {
    font-size: clamp(3.8rem,8vw,5.3rem);
  }
  .hero-lead {
    max-width: 620px;
  }
  .hero-stage {
    width: min(570px,100%);
    height: 650px;
    justify-self: center;
    margin-top: 12px;
  }
  .hero-phone-calendar {
    width: 257px;
    left: 6%;
  }
  .hero-phone-family {
    width: 243px;
    right: 4%;
  }
  .hero-stage::before {
    inset: 30px 0 50px;
  }
  .section {
    padding: 72px 0;
  }
  .chapter-card {
    padding: 20px 12px;
  }
  .chapter-card strong {
    font-size: .86rem;
  }
  .feature-layout {
    gap: 30px;
  }
  .feature-copy h2 {
    font-size: 2.55rem;
  }
  .screen-stage {
    padding: 26px 20px;
  }
  .screen-stage .phone {
    width: min(250px,100%);
  }
  .stage-calendar {
    min-height: auto;
  }
  .family-section {
    padding: 72px 0;
  }
  .family-layout {
    grid-template-columns: 1fr;
  }
  .workflow {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 30px;
  }
  .workflow li:first-child {
    padding-top: 21px;
  }
  .family-screens {
    max-width: 600px;
    margin: 0 auto;
  }
  .story-card-copy {
    padding: 26px;
  }
  .finance-section,.privacy-section {
    padding-top: 0;
  }
  .finance-panel {
    gap: 28px;
    padding: 28px;
    grid-template-columns: 1fr .8fr;
  }
  .finance-notes {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  .library-stage {
    min-height: 490px;
    gap: 12px;
    padding: 20px 16px;
  }
  .library-stage .phone {
    width: calc(50% - 6px);
    border-width: 5px;
    border-radius: 19px;
  }
  .library-stage .phone img {
    border-radius: 14px;
  }
  .tools-intro {
    display: block;
  }
  .tools-intro>p {
    max-width: none;
    margin-top: 16px;
  }
  .tools-list {
    grid-template-columns: repeat(3,1fr);
    row-gap: 20px;
  }
  .media-layout {
    gap: 40px;
    grid-template-columns: 1fr .65fr;
  }
  .media-visual {
    margin: 0;
  }
  .media-visual .phone {
    width: 100%;
    max-width: 250px;
  }
  .privacy-heading {
    gap: 30px;
  }
  .privacy-panel {
    padding: 28px;
  }
  .plans-section {
    padding-top: 10px;
  }
  .plan-card {
    padding: 28px;
  }
  .gallery-shot {
    padding: 20px;
  }
  .gallery-shot .phone {
    border-width: 5px;
    border-radius: 22px;
  }
  .gallery-shot .phone img {
    border-radius: 17px;
  }
  .gallery-grid {
    gap: 17px;
  }
  .faq-layout {
    grid-template-columns: .85fr 1.15fr;
    gap: 35px;
  }
  .download-panel {
    padding: 36px;
    flex-direction: column;
    align-items: flex-start;
    gap: 26px;
  }
  .document-grid {
    grid-template-columns: 190px minmax(0,1fr);
    gap: 32px;
  }
  .quick-links {
    grid-template-columns: 1fr 1fr;
  }
  .support-contact {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .support-contact .btn {
    justify-self: start;
  }
}

@media(max-width:650px){
  body {
    font-size: 16px;
  }
  html {
    scroll-padding-top: 91px;
  }
  section[id],[id$="title"] {
    scroll-margin-top: 93px;
  }
  .container,.header-inner {
    width: calc(100% - 40px);
  }
  .header-inner {
    min-height: 74px;
  }
  .brand>span {
    font-size: 1.38rem;
  }
  .brand small {
    font-size: .5rem;
  }
  .brand img {
    width: 38px;
    height: 38px;
  }
  .site-nav {
    top: 100%;
  }
  .hero {
    padding-top: 29px;
  }
  .hero .eyebrow {
    font-size: .63rem;
    margin-bottom: 17px;
  }
  .hero h1 {
    font-size: clamp(3.35rem,13vw,4.5rem);
  }
  .hero-lead {
    font-size: 1.04rem;
    margin-top: 20px;
  }
  .hero .button-row {
    margin-top: 24px;
    gap: 10px;
  }
  .hero .btn {
    padding-inline: 17px;
    font-size: .81rem;
  }
  .hero-platforms {
    font-size: .76rem;
  }
  .hero-stage {
    height: 465px;
    margin-top: 12px;
  }
  .hero-phone-calendar {
    width: 49%;
    left: 2%;
    top: 22px;
    border-width: 5px;
    border-radius: 23px;
  }
  .hero-phone-family {
    width: 46%;
    right: 0;
    top: 64px;
    border-width: 5px;
    border-radius: 23px;
  }
  .hero-stage .phone img {
    border-radius: 18px;
  }
  .hero-stage::before {
    inset: 25px -6px 48px;
  }
  .hero-stage::after {
    width: 70px;
    height: 70px;
    top: 3px;
    right: 17px;
  }
  .hero-note {
    bottom: 40px;
    left: 0;
    padding: 12px 15px;
    gap: 9px;
    border-radius: 16px;
  }
  .hero-note strong {
    font-size: 1rem;
  }
  .hero-note span {
    font-size: .65rem;
  }
  .hero-image-caption {
    right: 0;
    font-size: .62rem;
  }
  .today-line {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
    padding: 17px 0;
    font-size: .76rem;
  }
  .today-label {
    font-size: .71rem;
  }
  .chapters {
    padding-top: 42px;
  }
  .chapters h2 {
    font-size: 1.85rem;
  }
  .chapter-grid {
    grid-template-columns: 1fr;
    border-radius: 22px;
  }
  .chapter-card {
    display: grid;
    grid-template-columns: 40px 1fr;
    column-gap: 14px;
    padding: 19px 22px;
  }
  .chapter-card+.chapter-card {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .chapter-card .chapter-number {
    grid-row: 1 / 3;
    width: 40px;
  }
  .chapter-number>span {
    display: none;
  }
  .chapter-card .icon {
    margin-bottom: 0;
    margin-top: 4px;
    width: 25px;
    height: 25px;
  }
  .chapter-card strong {
    font-size: .97rem;
  }
  .chapter-card>span {
    margin-top: 2px;
    font-size: .76rem;
  }
  .section {
    padding: 62px 0;
  }
  .section-head {
    margin-bottom: 30px;
  }
  .section-head .eyebrow,.feature-copy>.eyebrow {
    font-size: .65rem;
  }
  .section-head h2,.feature-copy h2 {
    font-size: clamp(2.2rem,9.2vw,2.8rem);
  }
  .section-head>p:last-child:not(.eyebrow) {
    margin-top: 17px;
    font-size: .98rem;
  }
  .section-head-row {
    display: block;
  }
  .section-head-row>p {
    margin-bottom: 30px;
  }
  .feature-layout {
    grid-template-columns: 1fr;
    gap: 33px;
  }
  .feature-copy>p:not(.eyebrow) {
    margin-top: 17px;
    font-size: .95rem;
  }
  .feature-list strong {
    font-size: .94rem;
  }
  .feature-list p {
    font-size: .86rem;
  }
  .screen-stage {
    border-radius: 26px;
    padding: 30px;
  }
  .screen-stage .phone {
    width: 246px;
  }
  .feature-strip {
    grid-template-columns: 1fr;
    gap: 25px;
    margin-top: 30px;
    padding-top: 27px;
  }
  .feature-strip article {
    display: grid;
    grid-template-columns: 29px 1fr;
    gap: 0 14px;
  }
  .feature-strip article>.icon {
    grid-row: 1 / 3;
    margin-top: 3px;
  }
  .feature-strip p {
    margin-top: 7px;
  }
  .family-section {
    padding: 62px 0;
  }
  .family-layout {
    gap: 26px;
  }
  .workflow {
    display: block;
  }
  .workflow li:first-child {
    padding-top: 0;
  }
  .workflow p {
    font-size: .9rem;
  }
  .family-screens {
    gap: 16px;
  }
  .family-screens .phone {
    width: calc(50% - 8px);
    border-width: 5px;
    border-radius: 20px;
  }
  .family-screens .phone img {
    border-radius: 15px;
  }
  .duo-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .story-card-copy {
    padding: 27px;
  }
  .story-card h3 {
    font-size: 1.85rem;
  }
  .story-card-copy>p {
    font-size: .92rem;
  }
  .story-card-screen {
    padding: 30px;
  }
  .finance-section,.privacy-section {
    padding-top: 0;
  }
  .finance-panel {
    grid-template-columns: 1fr;
    padding: 27px 23px;
    border-radius: 28px;
    gap: 28px;
  }
  .finance-notes {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .finance-notes p {
    font-size: .86rem;
  }
  .finance-panel .screen-stage {
    padding: 26px;
  }
  .finance-panel .screen-stage .phone {
    width: 243px;
  }
  .library-stage {
    min-height: auto;
    padding: 33px 20px 63px;
    gap: 16px;
    border-radius: 26px;
  }
  .library-stage .phone {
    width: calc(50% - 8px);
  }
  .tools-panel {
    padding: 25px;
    margin-top: 37px;
  }
  .tools-intro h3 {
    font-size: 1.7rem;
  }
  .tools-list {
    grid-template-columns: 1fr 1fr;
  }
  .tools-list li {
    font-size: .87rem;
  }
  .tools-list span {
    font-size: .76rem;
  }
  .media-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .media-card {
    grid-template-columns: 39px 1fr;
    gap: 14px;
  }
  .media-card .icon-tile {
    width: 39px;
    height: 39px;
  }
  .media-visual .phone {
    width: 246px;
  }
  .ai-card {
    padding: 29px;
  }
  .privacy-panel {
    padding: 29px 23px;
    border-radius: 28px;
  }
  .privacy-heading {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .privacy-heading .section-head {
    margin-bottom: 22px;
  }
  .privacy-heading>div:last-child {
    font-size: .92rem;
    margin-bottom: 25px;
  }
  .privacy-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .privacy-card {
    padding: 23px;
  }
  .privacy-card p {
    font-size: .86rem;
  }
  .plans-section {
    padding-top: 0;
  }
  .plan-card {
    padding: 29px;
  }
  .plan-card h3 {
    font-size: 2.05rem;
  }
  .plan-card li {
    font-size: .88rem;
  }
  .platform-tabs {
    display: flex;
    width: fit-content;
  }
  .platform-tabs button {
    padding: 11px 21px;
  }
  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 29px;
  }
  .gallery-shot {
    padding: 29px;
  }
  .gallery-shot .phone {
    width: 234px;
    border-width: 7px;
    border-radius: 29px;
  }
  .gallery-shot .phone img {
    border-radius: 22px;
  }
  .gallery-wide .gallery-shot {
    padding: 15px;
  }
  .gallery-footnote {
    font-size: .77rem;
  }
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 5px;
  }
  .faq-layout .section-head {
    position: static;
    margin-bottom: 24px;
  }
  .faq summary {
    font-size: .98rem;
  }
  .faq details>div {
    font-size: .9rem;
  }
  .download-section {
    padding-bottom: 56px;
  }
  .download-panel {
    padding: 32px 27px;
    border-radius: 28px;
  }
  .download-panel h2 {
    font-size: 2.3rem;
  }
  .download-panel p:not(.eyebrow) {
    font-size: .9rem;
  }
  .dialog-header {
    padding: 12px 14px;
    gap: 12px;
  }
  .dialog-image {
    padding: 0 12px 12px;
  }
  .document-hero {
    padding: 41px 0 30px;
  }
  .document-hero h1 {
    font-size: 2.6rem;
  }
  .document-hero .intro {
    font-size: .98rem;
  }
  .document-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .document-sidebar {
    position: static;
  }
  .document-sidebar>.contact-card {
    display: none;
  }
  .page-toc {
    padding: 25px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: #fff;
  }
  .page-toc a {
    font-size: .87rem;
  }
  .quick-links {
    gap: 12px;
    margin-bottom: 28px;
  }
  .quick-link {
    padding: 20px;
  }
  .quick-link strong {
    font-size: .85rem;
  }
  .privacy-summary {
    grid-template-columns: 1fr;
    gap: 25px;
    padding: 27px;
    margin-bottom: 30px;
  }
  .privacy-summary p {
    font-size: .88rem;
  }
  .document-section h2 {
    font-size: 1.8rem;
  }
  .document-section p,.document-section li {
    font-size: .96rem;
    line-height: 1.85;
  }
  .support-contact {
    padding: 25px;
    margin-bottom: 29px;
  }
  .support-contact .btn {
    padding-inline: 17px;
    font-size: .82rem;
  }
  .document-page {
    padding-bottom: 56px;
  }
  .error-page {
    padding: 36px 0 60px;
  }
  .error-panel {
    padding: 36px 25px;
    border-radius: 28px;
  }
  .error-code {
    font-size: 5rem;
  }
  .error-panel h1 {
    font-size: 2.5rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px 20px;
  }
  .footer-grid>div:first-child {
    grid-column: 1 / -1;
  }
  .footer-contact {
    min-width: 0;
  }
  .footer-legal {
    display: block;
    line-height: 1.8;
  }
  .footer-legal>span {
    display: block;
  }
  .footer-legal>span+span {
    margin-top: 9px;
  }
  .legacy-notice {
    padding: 24px;
  }
  .legacy-notice h2 {
    padding-right: 33px;
  }
  .legacy-notice .button-row {
    align-items: stretch;
    flex-direction: column;
  }
}

@media(max-width:370px){
  .container,.header-inner {
    width: calc(100% - 32px);
  }
  .hero h1 {
    font-size: 3rem;
  }
  .hero-stage {
    height: 414px;
  }
  .hero .button-row {
    align-items: stretch;
    flex-direction: column;
  }
  .quick-links {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-contact {
    grid-column: 1;
  }
  .platform-tabs button {
    padding-inline: 16px;
  }
}

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

@media(forced-colors:active){
  .pill,.btn,.phone,.icon-tile,.privacy-card,.chapter-card {
    border: 1px solid ButtonText;
  }
  .platform-tabs [aria-selected="true"] {
    outline: 2px solid Highlight;
  }
}

@media print{
  .site-header,.site-footer,.document-sidebar,.quick-links,.support-contact .btn,.screenshot-dialog,.legacy-notice {
    display: none !important;
  }
  body {
    font-size: 11pt;
    background: #fff;
    color: #000;
  }
  .container {
    width: 100%;
  }
  .document-grid {
    display: block;
  }
  .document-hero {
    padding-top: 0;
  }
  .document-section {
    break-inside: avoid-page;
  }
  a {
    color: #000;
  }
}

/* Đường focus nằm ngoài khung ảnh để không bị khung bo góc cắt mất. */
.phone:focus-within {
  outline: 3px solid #a5562b;
  outline-offset: 5px;
}

@media(max-width:950px){
  .site-header:not(.has-navigation) {
    position: static;
  }
  .site-header:not(.has-navigation) .header-inner {
    flex-wrap: wrap;
    padding-block: 16px;
  }
  .site-header:not(.has-navigation) .site-nav {
    display: flex;
    position: static;
    width: 100%;
    flex-direction: column;
    border: 0;
    box-shadow: none;
    padding: 0;
  }
}

.family-section :focus-visible,
.family-section .phone:focus-within,
.download-panel :focus-visible,
.plan-card-member :focus-visible {
  outline-color: var(--butter);
}